DOCSLIB.ORG

Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada GEOLOGICAL SURVEY PROFESSIONAL PAPER 639 Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada By REUBEN JAMES ROSS, JR. GEOLOGICAL SURVEY PROFESSIONAL PAPER 639 A description of 79 species of 58 genera of brachiopods and trilobites in the context of seven strategically located stratigraphic sections. Interpretations of Middle Ordovician stratigraphy in central Nevada are modified UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1970 UNITED STATES DEPARTMENT OF THE INTERIOR WALTER J. HICKEL, Secretary GEOLOGICAL SURVEY William T. Pecora, Director Library of Congress catalog-card No. 72-605081 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Fossil assemblages and correlations Continued Page Abstract-___--_--__---_-________-______--_-___-____ 1 Revision of Middle Ordovician fossil zones- ________ 44 Introduction. ______________________________________ 1 The Whiterock Stage __ ____________________ 44 Purpose of the report -_____-_-,_--___-_____-___ 3 The Orthidiella zone revised ______________ 45 Extent of investigation __________________________ 3 Palliseria zone reduced to subzone_ _______ 47 Basic considerations-____________________________ 3 Anomalorthis zone redefined. _____________ 48 Acknowledgments.. _ _ ___________________________ 4 Rhysostrophia zone reduced to subzone____ 50 Stratigraphic sections and distribution of fossils..- ______ 4 Revised correlation of Anomalorthis and Pahranagat Range._____________________________ 4 Rhysostrophia zones. ________-___---_-_ 51 Measured section ___________________________ 4 Descriptive paleontology ____________----_-_----_ _____ 53 Fossils from the Pahranagat Range.__________ 7 Phylum Brachiopoda Dumeril, 1806_______ ________ 53 Age and correlation of Pahranagat Range fossils. 11 Class Articulata Huxley, 1869 __ ______________ 53 Southeast end, Groom Range__--___----______.__ 12 Genus Orthidium Hall and Clarke, 1892 __ 53 Measured section ___________________________ 12 Genus Orthambonites Pander, 1830. _ ______ 54 Fossils from the southern Groom Range.______ 13 Genus Hesperorthis Schuchert and Cooper, Age and correlation of fossils from the southern 193 1 ____-__________-_-_____--------_ 56 Groom Range.___________________________ 17 Genus Plectorthis Hall and Clarke, 1892___ 57 Hot Creek Canyon____________________________ 17 Genus Desmorthis Ulrich and Cooper, 1936_ 58 Measured section ___________________________ 18 Genus Asymphylotoechia Ross, n. gen__-___ 60 Fossils from the Hot Creek Canyon section. 18 Genus Anomalorthis Ulrich and Cooper, Age and correlation of fossils from Hot Creek 1936_ ______________-----__---_------ 61 Canyon.. ________________________________ 20 Genus Aporthophyla Ulrich and Cooper, Ikes Canyon, Toquima Range._--____-___________ 21 1936__ _______________--___------_-_- 63 Measured section.__________________________ 21 Genus Toquimia Ulrich and Cooper, 1936__ 63 Fossils from the Ikes Canyon section..________ 22 Genus Hesperomena Cooper, 1956_____--_- 64 Age and correlation of fossils from Ikes Canyon, Genus Isophragma Cooper, 1956- _________ 64 Toquima Range.._______-___-----________ 27 Genus Taphrodonta Cooper, 1956_ ________ 65 Composite Antelope Valley section._______________ 28 Genus Leptellina Ulrich and Cooper, 1936__ 65 Section of Goodwill Limestone.______________ 29 Genus Glyptomena Cooper, 1956_ _________ 65 Fossils from composite Antelope Valley section _ 29 Genus Opikina .Salmon, 1942__ ___________ 66 Hanson Creek Formation._______________ 29 Genus Leptaena Dalman, 1828____----_--_ 66 Copenhagen Formation _________________ 29 Genus Dactylogonia Ulrich and Cooper, Antelope Valley Limestone. _____________ 31 1942_ ____________________--_-__----- 66 Ninemile Formation- -_-____-_-_________ 31 Genus Gacella Williams, 1962. _,__ ________ 67 Goodwill Limestone.___________________ 32 Genus Syntrophopsis Ulrich and Cooper, Age and correlation of fossils in composite Ante­ 67 lope Valley section.----_---___-___________ 32 Genus Rhysostrophia Ulrich and Cooper, Lone Mountain section,_________________________ 33 1936_ __________--_-----_---------_-- 68 Measured section. __________________________ 33 Genus Camerella Billings, 1859 _ __________ 68 Fossils from the Lone Mountain section,______ 34 Genus Dorytreta Cooper, 1956_ ___________ 69 Age and correlation of fossils from the Lone Genus Sphenotrcta Cooper, 1956_ _________ 69 Mountain section.________________________ 37 Genus and species indeterminate____ _ _____ 70 Steptoe section_________________________________ 37 Measured section. __________________________ 38 Phylum Arthropoda___ _ __________-_____--__----_ 70 Fossils from the Steptoe section._____________ 39 Class Trilobita_____-___-__----_- ------ 70 Age and correlation of fossils from the Steptoe Genus Geragnostus Howell, 1935-_--__---_ 70 section. __________________________________ 42 Genus Parabolinella Br0gger, 1882_ _______ 71 Fossil assemblages and correlations. __________________ 42 Genus Hypermecaspis Harrington and Additions and corrections._______________________ 42 Leanza, 1957_ __ ___________--_-----_ 71 Northern Inyo Mountains, California__ _______ 42 Genus Hystricurus Raymond, 1913 ____ 72 Pyramid Peak section, Ryaii quadrangle, Cali­ Unidentified pygidium. _ _________ --- - 72 fornia, __________________________________ 43 Genus Pseudohystricurus Ross, 1951 _____ 72 Meiklejohn Peak, Bare Mountain quadrangle, Undetermined hystricuridf?) species_______ 73 Nevada.________________________________ 43 73 Ranger Mountains, Nevada Test Site, French­ Indeterminate pygidium- _____-_--__-_-_- 73 man Lake quadrangle. ____________________ 43 Genus Leiostegium Raymond, 1913_____-__ Unit 3 of MeAllister (1952) _________________ 44 Genus Apatokephalus Br0gger, 1897_ ______ 75 Reversed isopachs__________________________ 44 Genus Varvia Tjernvik, 1956_ _____-__--_- 76 in IV CONTENTS Descriptive paleontology Continued Descriptive paleontology Continued Phylum Arthropoda Continued Phylum Arturopoda Continued Class Trilobita Continued Page Class Trilobita Continued Page Genus Anlacoparia Hintze and Jaanusson, Genus Licnocephala Ross, 1951 _ __________ 88 1956___________---__-_____---._____- 76 Genus Astroproetus Begg, 1939.__________ 88 Genus Basilicus Salter, 1849.__-__-_-__._ 76 Genus Lonchodomas Angelin, 1854________ 88 Genus Isotelus DeKay, 1824_ ____________ 78 Genus Perischoclonus Raymond, 1925 __ 89 Genus Asaphellus Callaway, 1877. ________ 78 Genus Xystocrania Whittington, 1963_____ 89 Genus and species undetermined________ 80 Genus Cydonocephalus Whittington, 1963___ 90 Genus Megistaspis Jaanusson, 1956. ______ 80 Genus Perissopliomera Ross, n. gen_______ 90 Megalaspid hypostome__________________ 81 Genus Pseudomera Holliday, 1942 ______ 91 Genus Hunnebergia Tjernvik, 1956________ 82 Genus Encrinuroides Reed, 1931___--_-__- 91 Genus Niobella Reed, 1931____________ 82 Genus Miracybele Whittington, 1963__ _. 92 Genus Peraspis Whittington, 1965________ 82 Genus Protocalymene Ross, 1967__________ 92 Genus Illaenus Dalman, 1827.___________ 83 Genus Brongniartella Reed, 1918 ______ 92 Genus Raymondaspis Pribyl, 1948 _____ 84 Genus Whittingtonia Prantl and Pribyl, Genus Bathyurus Billings, 1859__---___--_ 85 1949._______-__------------------_-- 93 Genus Uromystrum Whittington, 1953.____ 87 Genus Goniotelina Whittington and Ross, Selected references.__________________-__----------__ 94 1953______________________________ 87 Index.____________________________-------------__- 97 ILLUSTRATIONS [Plates 1-19 follow index; plates 20-22 are in pocket] PLATE 1. Orthidium, Hesperorthis. 2. Hesperorthis. 3. Hesperorthis, Orthambonites. 4. Orthambonites, Plectorthis, Anomalorthis. 5. Anomalorthis. 6. Desmorthis, Anomalorthis, Plectorthis?, Asymphylotoechia. 7. Asymphylotoechia, Rhysostrophia, Camerella. 8. Camerella, Sphenotreta, Dorytreta, Toquimia. 9. Aporthophyla, Leptellina, Leptaena, Isophragma, Opikina, Glyptomena?, Dadylogonia, Syntrophopsis. 10. Hesperomena, Gacella?, Geragnostus, Parabolinella, Hypermecaspis, Hystricurus, Pseudohystricurus. 11. Pseudohystricurus?, Leiostegium, Apatokephalus, Aulacoparia, Varvia?, Basilicus. 12. Basilicus, Asaphellus. 13. Apatokephalus, Asaphellus, Isotelus?, Bathyurus, Megislaspis (Ekeraspis). 14. Megistaspis (Ekeraspis), Niobella, Hunnebergia?, Peraspis. 15. Peraspis, Illaenus, Raymondaspis? Bathyurus, Uromystrum?. 16. Bathyurus, Goniotelina?, Astroproetus, Licnocephala?, Lonchodomas. 17. Lonchodomas, Xystocrania, Perissopliomera, Pseudomera, Encrinuroides, Perischoclonus, Cydonocephalus. 18. Encrinuroides, Protocalymene, aff. Miracybele, Brongnianella, Kawina, Whittingtonia, Bathyurellus, Nileus. 19. Desmorthis, Orthambonites, Taphrodonta. 20. Diagrammatic stratigraphic sections of Ordovician rocks, showing ranges of fossils, from Pahranagat Range to Ikes Canyon (Toquima Range), Nev. 21. Diagrammatic stratigraphic sections of Ordovician rocks, showing ranges of fossils, from Steptoe, (northern Egan Range), to Ikes Canyon (Toquima Range), Nev. 22. Idealized stratigraphic diagrams showing fossil zones relative to Ordovician units from the Pahranagat Range to Ikes Canyon and from Ibex, Utah, to Ikes Canyon, Nev. Page FIGUKE 1. Index map showing relative positions of stratigraphic sections.___________________________________________ 2 2. Relative ranges of selected Middle Ordovician fossils, all compiled to the same vertical scale for comparison..--
Load more

Recommended publications
  • Articulo Agnostida (Trilobita)
    Dies, M.E. y Gozalo, R. 2004. Agnostida (Trilobita) de la Formación Valdemiedes (Leoniense: Cámbrico Medio basal) de las Cadenas Ibéricas (NE de España). Boletín Geológico y Minero, 115 (4): 683-698 ISSN: 0366-0176 Agnostida (Trilobita) de la Formación Valdemiedes (Leoniense: Cámbrico Medio basal) de las Cadenas Ibéricas (NE de España) M.E. Dies(1) y R. Gozalo(2) (1) Área y Museo de Paleontología. Facultad de Ciencias. Universidad de Zaragoza. E-50009 Zaragoza, España. E-mail: [email protected] (2) Departamento de Geología. Universitat de València. Dr. Moliner, 50. E-46100 Burjassot, España. E-mail: [email protected] RESUMEN El hallazgo de trilobites del Orden Agnostida del Leoniense Medio en las Cadenas Ibéricas (NE de España), así como material nuevo pro- cedente del Leoniense Inferior, han permitido completar el estudio taxonómico de este grupo en el Cámbrico Medio basal de este área. La presencia de dos poblaciones de la especie Condylopyge cruzensis Liñán y Gozalo, 1986 ha posibilitado realizar un estudio morfomé- trico y poblacional de la misma. Por otro lado, se ha identificado por primera vez el taxón Peronopsis aff. longinqua Öpik, 1979, lo que puede ser considerado como una herramienta más que apoye la correlación propuesta para el piso Leoniense y el Ordian/early Templentonian de Australia. Palabras clave: Agnostida, Cadenas Ibéricas, Cámbrico Medio, Formación Valdemiedes, Leoniense, trilobites Agnostida (Trilobita) from the Valdemiedes Formation (Leonian: low Middle Cambrian) of the Iberian Chains (NE Spain) ABSTRACT The discovery of Middle Leonian trilobites of the Agnostida Order in the Iberian Chains (NE Spain) together with new Lower Leonian mate- rial make possible to complete the taxonomic study of this group in the low Middle Cambrian of this area.
    [Show full text]
  • A New Middle Cambrian Trilobite with a Specialized Cephalon from Shandong Province, North China
    Editors' choice A new middle Cambrian trilobite with a specialized cephalon from Shandong Province, North China ZHIXIN SUN, HAN ZENG, and FANGCHEN ZHAO Sun, Z., Zeng, H., and Zhao, F. 2020. A new middle Cambrian trilobite with a specialized cephalon from Shandong Province, North China. Acta Palaeontologica Polonica 65 (4): 709–718. Trilobites achieved their maximum generic diversity in the Cambrian, but the peak of morphological disparity of their cranidia occurred in the Middle to Late Ordovician. Early to middle Cambrian trilobites with a specialized cephalon are rare, especially among the ptychoparioids, a group of libristomates featuring the so-called “generalized” bauplan. Here we describe an unusual ptychopariid trilobite Phantaspis auritus gen. et sp. nov. from the middle Cambrian (Miaolingian, Wuliuan) Mantou Formation in the Shandong Province, North China. This new taxon is characterized by a cephalon with an extended anterior area of double-lobate shape resembling a pair of rabbit ears in later ontogenetic stages; a unique type of cephalic specialization that has not been reported from other trilobites. Such a peculiar cephalon as in Phantaspis provides new insights into the variations of cephalic morphology in middle Cambrian trilobites, and may represent a heuristic example of ecological specialization to predation or an improved discoidal enrollment. Key words: Trilobita, Ptychopariida, ontogeny, specialization, Miaolingian, Paleozoic, Longgang, Asia. Zhixin Sun [[email protected]], Han Zeng [[email protected]], and Fangchen Zhao [[email protected]] (cor­ responding author), State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palae­ ontology and Center for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
    [Show full text]
  • Sequence of Post-Moult Exoskeleton Hardening Preserved in a Trilobite Mass Moult Assemblage from the Lower Ordovician Fezouata Konservat-Lagerstätte, Morocco
    Editors' choice Sequence of post-moult exoskeleton hardening preserved in a trilobite mass moult assemblage from the Lower Ordovician Fezouata Konservat-Lagerstätte, Morocco HARRIET B. DRAGE, THIJS R.A. VANDENBROUCKE, PETER VAN ROY, and ALLISON C. DALEY Drage, H.B., Vandenbroucke, T.R.A., Van Roy, P., and Daley, A.C. 2019. Sequence of post-moult exoskeleton hardening preserved in a trilobite mass moult assemblage from the Lower Ordovician Fezouata Konservat-Lagerstätte, Morocco. Acta Palaeontologica Polonica 64 (2): 261–273. Euarthropods have a tough exoskeleton that provides crucial protection from predation and parasitism. However, this is restrictive to growth and must be periodically moulted. The moulting sequence is well-known from extant arthropods, consisting of: (i) the long inter-moult stage, in which no changes occur to the hardened exoskeleton; (ii) the pre-moult stage where the old exoskeleton is detached and the new one secreted; (iii) exuviation, when the old exoskeleton is moulted; and (iv) the post-moult stage during which the new exoskeleton starts as soft, thin, and partially compressed and gradually hardens to the robust exoskeleton of the inter-moult stage. Trilobite fossils typically consist of inter-moult carcasses or moulted exuviae, but specimens preserving the post-moult stage are rare. Here we describe nine specimens assigned to Symphysurus ebbestadi representing the first group of contemporaneous fossils collected that preserve all key stages of the moulting process in one taxon, including the post-moult stage. They were collected from a single lens in the Tremadocian part of the Fezouata Shale Formation, Morocco. Based on cephalic displacement and comparison to other trilobite moults, one specimen appears to represent a moulted exoskeleton.
    [Show full text]
  • Trilobites of the Hagastrand Member (Tøyen Formation, Lowermost Arenig) from the Oslo Region, Norway. Part Il: Remaining Non-Asaphid Groups
    Trilobites of the Hagastrand Member (Tøyen Formation, lowermost Arenig) from the Oslo Region, Norway. Part Il: Remaining non-asaphid groups OLE A. HOEL Hoel, O. A.: Trilobites of the Hagastrand Member (Tøyen Formation, lowermost Arenig) from the Oslo Region, Norway. Part Il: remaining non-asaphid groups. Norsk Geologisk Tidsskrift, Vol. 79, pp. 259-280. Oslo 1999. ISSN 0029-196X. This is Part Il of a two-part description of the trilobite fauna of the Hagastrand Member (Tøyen Formation) in the Oslo, Eiker­ Sandsvær, Modum and Mjøsa areas. In this part, the non-asaphid trilobites are described, while the asaphid species have been described previously. The history and status of the Tremadoc-Arenig Boundary problem is also reviewed, and I have found no reason to insert a Hunnebergian Series between the Tremadoc and the Arenig series, as has been suggested by some workers. Descriptions of the localities yielding this special trilobite fauna are provided. Most of the 22 trilobite species found in the Hagastrand Member also occur in Sweden. The 12 non-asaphid trilobites described herein belong to the families Metagnostidae, Shumardiidae, Remopleurididae, Nileidae, Cyclopygidae, Raphiophoridae, Alsataspididae and Pliomeridae. One new species is described; Robergiella tjemviki n. sp. Ole A. Hoel, Paleontologisk Museum, Sars gate l, N-0562 Oslo, Norway. Introduction contemporaneous platform deposits in Sweden are domi­ nated by a condensed limestone succession. In Norway, the The Tremadoc-Arenig Boundary interval is a crucial point Tøyen Formation is divided into two members: the lower in the evolution of several invertebrate groups, especially among the graptolites and the trilobites. In the graptolites, this change consisted most significantly in the loss of bithekae and a strong increase in diversity.
    [Show full text]
  • Article (PDF, 3250
    Mitt. Mus. Nat.kd. Berl., Geowiss. Reihe 5 (2002) 105-120 10.11.2002 Atractocybeloides, eine kleinwuchsige Trilobitengattung aus baltoskandischen Geschieben und ihrem Anstehenden Hans-Hartmut Krueger * Mit 6 Abbildungen und 3 Tafeln Zusammenfassung Aus mittel- bis oberordovizischen Geschieben werden funf Taxa der kleinwuchsigen Trilobitengattung Atractocybeloides vorge- stellt, davon die beiden neuen Arten Atractocybeloides nebeni n. SP. und Atractocybeloides oepiki n. sp. Die Gattung wurde 1991 an Fragmenten aufgestellt. Sie hat sich in der Aseri-Stufe aus Cybele entwickelt. Neue Funde und das reichhaltige Material aus der Sammlung Rhebergen, in der auch fast vollstandige Panzerhemden von A. berneri enthalten sind, ermoglich- ten eine Rekonstruktion. ,Weiterhin wird die aus Nonvegen beschriebene Art Atractopyge gracilis der Gattung Atractocybel- oides zugeordnet. GroBe Ahnlichkeiten bestehen zur ungefahr gleichaltrigen nordamerikanischen kleinwiichsigen Gattung Cy- beloides. Schliisselworter: Trilobita, Atractocybeloides, Geschiebe, Ordovizium. Abstract Five taxa of the small trilobite genus Atractocybeloides are presented from Middle to Late Ordovician erratic boulders, includ- ing the new species Atractocybeloides nebeni n. sp. and Atractocybeloides oepiki n. sp. The genus was errected in 1991 on the basis of fragmentary material. It evolved from Cybele during Aseri-zone times. A reconstruction is made possible due to new finds and the rich material from the Rhebergen collection, including nearly complete cuticles of A. berneri. Furthermore, Atructopyge gracilis from Norway is assigned to Atractocybeloides. Strong similarities exist to the roughly coeval, small trilo- bite genus Cybeloides, which is known from North America. Key words: Trilobita, Atructocybeloides, erratic boulders, Ordovician. Einleitung tung vereinigt auf ihrem Cranidium Merkmale von Cybele, Atractopyge und Cybeloides. 1991 Durch ihren kleinen Wuchs und die seltenen, wurde die neue Gattung Atructocybeloides mit sparlichen Reste in bestimmten oberordovizi- zwei neuen Arten, A.
    [Show full text]
  • Trace Fossils from the Baltoscandian Erratic Boulders in Sw Poland
    Annales Societatis Geologorum Poloniae (2017), vol. 87: 229–257 doi: https://doi.org/10.14241/asgp.2017.014 TRACE FOSSILS FROM THE BALTOSCANDIAN ERRATIC BOULDERS IN SW POLAND Alina CHRZĄSTEK & Kamil PLUTA Institute of Geological Sciences, Wrocław University; Maksa Borna 9, 50-204 Wrocław, Poland e-mails: [email protected], [email protected] Chrząstek, A. & Pluta, K, 2017. Trace fossils from the Baltoscandian erratic boulders in SW Poland. Annales Societatis Geologorum Poloniae, 87: 229–257. Abstract: Many well preserved trace fossils were found in erratic boulders and the fossils preserved in them, occurring in the Pleistocene glacial deposits of the Fore-Sudetic Block (Mokrzeszów Quarry, Świebodzice outcrop). They include burrows (Arachnostega gastrochaenae, Balanoglossites isp., ?Balanoglossites isp., ?Chondrites isp., Diplocraterion isp., Phycodes isp., Planolites isp., ?Rosselia isp., Skolithos linearis, Thalassinoides isp., root traces) and borings ?Gastrochaenolites isp., Maeandropolydora isp., Oichnus isp., Osprioneides kamp- to, ?Palaeosabella isp., Talpina isp., Teredolites isp., Trypanites weisei, Trypanites isp., ?Trypanites isp., and an unidentified polychaete boring in corals. The boulders, Cambrian to Neogene (Miocene) in age, mainly came from Scandinavia and the Baltic region. The majority of the trace fossils come from the Ordovician Orthoceratite Limestone, which is exposed mainly in southern and central Sweden, western Russia and Estonia, and also in Norway (Oslo Region). The most interesting discovery in these deposits is the occurrence of Arachnostega gastrochaenae in the Ordovician trilobites (?Megistaspis sp. and Asaphus sp.), cephalopods and hyolithids. This is the first report ofArachnostega on a trilobite (?Megistaspis) from Sweden. So far, this ichnotaxon was described on trilobites from Baltoscandia only from the St.
    [Show full text]
  • Instituto De Geociências Revisão Sistemática E
    UNIVERSIDADE DE SÃO PAULO INSTITUTO DE GEOCIÊNCIAS REVISÃO SISTEMÁTICA E PALEOBIOGEOGRÁFICA DE TRILOBITAS PHACOPIDA (HOMALONOTIDAE E CALMONIIDAE) DO DEVONIANO DAS BACIAS DO PARNAÍBA E AMAZONAS, BRASIL Felipe van Enck Meira Tese apresentada ao Programa de Pós- Graduação em Geoquímica e Geotectônica do Instituto de Geociências da Universidade de São Paulo, como parte dos requisitos para a obtenção do título de doutor. Orientadora: Prof. Dra. Juliana de Moraes Leme TESE DE DOUTORAMENTO Programa de Pós-graduação em Geoquímica e Geotectônica São Paulo 2016 “Kites rise highest against the wind - not with it.” - Winston Churchill Agradecimentos Agradeço a Deus, por sempre iluminar o caminho durante esses anos de altos e baixos do Doutorado. Agradeço a Ele também por enviar dois verdadeiros anjos da guarda à minha vida – minha esposa Angela Faleiros van Enck Meira e meu filho, Thomas Faleiros van Enck Meira. Agradeço a meus pais, José Carlos e Sylvia, e à minha irmã, Patrícia, pelo apoio durante a jornada, ainda que à distância, por vezes. Sou grato aos meus sogros, Jair e Lucia, que sempre foram como verdadeiros pais e conselheiros. À FAPESP (Processo n° 2012/07075-3), pelo suporte financeiro, sem o qual o Doutorado não seria viável. À minha orientadora, Drª. Juliana de Moraes Leme, pela orientação, discussões e esclarecimentos pertinentes ao projeto. Ao Doutorando Fabio Carbonaro e ao Dr. Renato Ghilardi (UNESP-Bauru), pela parceria e por discussões importantes na realização do trabalho. À Drª. Niède Guidon (FUMDHAM), pelo empréstimo de fósseis da região de São João Vermelho (Piauí), estudados aqui. Sou grato às seguintes pessoas, por permitirem meu acesso às instituições para visita de acervos, e por sua disponibilidade, atenção e ajuda durante minha permanência: Bushra Hussaini (AMNH), Flávia Alessandra Figueiredo, Mônica de Medina Coeli, Dr.
    [Show full text]
  • Available Generic Names for Trilobites
    AVAILABLE GENERIC NAMES FOR TRILOBITES P.A. JELL AND J.M. ADRAIN Jell, P.A. & Adrain, J.M. 30 8 2002: Available generic names for trilobites. Memoirs of the Queensland Museum 48(2): 331-553. Brisbane. ISSN0079-8835. Aconsolidated list of available generic names introduced since the beginning of the binomial nomenclature system for trilobites is presented for the first time. Each entry is accompanied by the author and date of availability, by the name of the type species, by a lithostratigraphic or biostratigraphic and geographic reference for the type species, by a family assignment and by an age indication of the type species at the Period level (e.g. MCAM, LDEV). A second listing of these names is taxonomically arranged in families with the families listed alphabetically, higher level classification being outside the scope of this work. We also provide a list of names that have apparently been applied to trilobites but which remain nomina nuda within the ICZN definition. Peter A. Jell, Queensland Museum, PO Box 3300, South Brisbane, Queensland 4101, Australia; Jonathan M. Adrain, Department of Geoscience, 121 Trowbridge Hall, Univ- ersity of Iowa, Iowa City, Iowa 52242, USA; 1 August 2002. p Trilobites, generic names, checklist. Trilobite fossils attracted the attention of could find. This list was copied on an early spirit humans in different parts of the world from the stencil machine to some 20 or more trilobite very beginning, probably even prehistoric times. workers around the world, principally those who In the 1700s various European natural historians would author the 1959 Treatise edition. Weller began systematic study of living and fossil also drew on this compilation for his Presidential organisms including trilobites.
    [Show full text]
  • Descargar Trabajo En Formato
    Upper Cambrian – Arenig stratigraphy and biostratigraphy in the Purmamarca area, Jujuy Province, NW Argentina Guillermo F. Aceñolaza1 and Sergio M. Nieva1 1 INSUGEO – Conicet/Facultad de Ciencias Naturales e I.M.L. Universidad Nacional de Tucumán, Miguel Lillo 205, 4000 Tucumán. E-mail: [email protected] Palabras clave: Estratigrafía. Bioestratigrafía. Ordovícico. Purmamarca. Jujuy. Argentina. Key words: Stratigraphy. Biostratigraphy. Ordovician. Purmamarca. Jujuy. Argentina. Introduction The region of Purmamarca is a classical locality for geological studies in the argentine literature. Many authors have recognized and analyzed the Ordovician strata and its paleontological heritage (eg. Keidel, 1917; Kobayashi,1936, 1937; Harrington, 1938; De Ferraris, 1940; Harrington and Leanza, 1957; Ramos et al., 1967 and Tortello, 1990). However, strata are several times sliced by longitudinal faults of submeridional trend, cropping out in narrow belts alternating with Precambrian/Cambrian, Cambrian and Mesozoic units. As long ago stated by Harrington (1957), no continuous section is displayed, recording isolated Ordovician blocks of different stratigraphic position. Several Lower Ordovician units crop out in the Purmamarca area. The Casa Colorada Formation (Uppermost Cambrian – Lower Tremadocian) is widely represented by the eastern flank of the Quebrada de Humahuaca when meeting the Quebrada de Purmamarca. The Coquena and Cieneguillas shales (Upper Tremadocian), and the Sepulturas Formation (Arenig) are nicely displayed in the tributaries of the Quebrada de Purmamarca. Finally, it is worthwhile to mention that a paleontological collection from this South American locality was given to the renowned Japanese paleontologist Teiichi Kobayashi in the first decades of the XX century (Kobayashi, 1936). Within the material was a new trilobite genus, defined by him as Jujuyaspis(after Jujuy province).
    [Show full text]
  • 001-012 Primeras Páginas
    PUBLICACIONES DEL INSTITUTO GEOLÓGICO Y MINERO DE ESPAÑA Serie: CUADERNOS DEL MUSEO GEOMINERO. Nº 9 ADVANCES IN TRILOBITE RESEARCH ADVANCES IN TRILOBITE RESEARCH IN ADVANCES ADVANCES IN TRILOBITE RESEARCH IN ADVANCES planeta tierra Editors: I. Rábano, R. Gozalo and Ciencias de la Tierra para la Sociedad D. García-Bellido 9 788478 407590 MINISTERIO MINISTERIO DE CIENCIA DE CIENCIA E INNOVACIÓN E INNOVACIÓN ADVANCES IN TRILOBITE RESEARCH Editors: I. Rábano, R. Gozalo and D. García-Bellido Instituto Geológico y Minero de España Madrid, 2008 Serie: CUADERNOS DEL MUSEO GEOMINERO, Nº 9 INTERNATIONAL TRILOBITE CONFERENCE (4. 2008. Toledo) Advances in trilobite research: Fourth International Trilobite Conference, Toledo, June,16-24, 2008 / I. Rábano, R. Gozalo and D. García-Bellido, eds.- Madrid: Instituto Geológico y Minero de España, 2008. 448 pgs; ils; 24 cm .- (Cuadernos del Museo Geominero; 9) ISBN 978-84-7840-759-0 1. Fauna trilobites. 2. Congreso. I. Instituto Geológico y Minero de España, ed. II. Rábano,I., ed. III Gozalo, R., ed. IV. García-Bellido, D., ed. 562 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system now known or to be invented, without permission in writing from the publisher. References to this volume: It is suggested that either of the following alternatives should be used for future bibliographic references to the whole or part of this volume: Rábano, I., Gozalo, R. and García-Bellido, D. (eds.) 2008. Advances in trilobite research. Cuadernos del Museo Geominero, 9.
    [Show full text]
  • Paleozoic Rocks Antelope Valley Eureka and Nye Counties Nevada
    :It k 'I! ' Paleozoic Rocks Antelope Valley Eureka and Nye Counties Nevada GEOLOGICAL SURVEY PROFESSIONAL PAPER 423 Paleozoic Rocks of Antelope Valley Eureka and Nye Counties Nevada By CHARLES W. MERRIAM GEOLOGICAL SURVEY PROFESSIONAL PAPER 423 P,rinciples of stratigraphy applied in descriptive study of the Central Great Basin Paleozoic column UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1963 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.C. CONTENTS Page Page Silurian system ____________________________________ _ Abstract------------------------------------------- 1 36 Introduction. _____________________________________ _ 2 General features-------------------------------- 36 Geologic setting ______________ ------ ___ --------- 2 Roberts Mountains formation ___________________ _ 37 History of investigation ________________________ _ 5 Lone Mountain dolomite ______ ---_-------------- 39 Purpose and scope _____________ -- ______ ------ --- 6 Devonian system ______________ ---- __ - _- ___ - _------- 41 Acknowledgments ______________________________ _ 6 General features _____________ - ___________ -_----- 41 Geologic structure as related to stratigraphy __________ _ 6 Western Helderberg age limestones of the Monitor Paleontologic studies ______ ..:. _______ ~ ________________ _ 9 · Range ______ - _.- ___ --------------------------- 42 The Paleozoic column at Antelope Valley
    [Show full text]
  • 1 Xerox University Microfilmst Ann Arbor, Michigan 48106
    I 76-9946 ti I CARNES, John Beynon, 1943- CONODONT BIOSTRATIGRAPHY IN THE LOWER I MIDDLE ORDOVICIAN OF THE WESTERN I APPALACHIAN THRUST-BELTS IN NORTHEASTERN TENNESSEE. The Ohio State University, Ph.D., I 1975 I Geology 1 Xerox University Microfilmst Ann Arbor, Michigan 48106 THIS DISSERTATION HAS BEEN MICROFILMED EXACTLY AS RECEIVED. CONODONT BIOSTRATIGRAPHY IN THE LOWER MIDDLE ORDOVICIAN OF THE WESTERN APPALACHIAN THRUST-BELTS IN NORTHEASTERN TENNESSEE DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By John B. Carnes, B.A., B.S The Ohio State University 1975 Reading Committee: Approved by Professor S. M. Bergstr8m, Chairman Professor W. C. Sweet Professor Gunter Faure 7 Q / Adviser irtment or and Mineralogy ACKNOWLEDGMENTS Dr. Stig Mo Bergstrom suggested and supervised this project. Dr. Bergstrflm has been an enthusiastic adviser and a stimulating educator; his interest, his guidance, and the tremendous amount of time he devoted to this project are greatly appreciated. Dr. Walter C. Sweet read the manuscript and offered many helpful suggestions. Dr. Sweet has spent many hours, to the writer's profit, discussing conodont biostratigraphy and taxonomy and sharing his insights. Thanks are also due to Dr. Gunter Faure, who read the manuscript; to Dr. Aurele LaRocque who kindly allowed the writer to use his office space, his drafting equipment, and his personal library; and to Dr. Barry J. Cooper and Dr. Robert B. Votaw, who, while graduate students at The Ohio State University, freely discussed their ideas with the writer. I am deeply indebted to several good friends who provided valuable assistance in the final assembly of this report.
    [Show full text]