DOCSLIB.ORG

Eche\ Odermata

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Eche\ Odermata THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS Serial Number 46 ECHE\ ODERMATA ARTICLE 9 Pages 1-86, Figures 1-6, Plates 1-28 CLASSIFICATION AND NOMENCLATURE OF FOSSIL CRINOIDS BASED ON STUDIES OF DISSOCIATED PARTS OF THEIR COLUMNS RAYMOND C. MOORE and RUSSELL M. JEFFORDS The University of Kansas Paleontological Institute HAROLD NORMAN FISK MEMORIAL PAPERS Humble Oil & Refining Company THE UNIVERSITY OF KANSAS PUBLICATIONS JANUARY 26, 1968 THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS Serial Number 46—Echinodermata, Article 9, Pages 1-86, Figures 1-6, Plates 1-28 CLASSIFICATION AND NOMENCLATURE OF FOSSIL CRINOIDS BASED ON STUDIES OF DISSOCIATED PARTS OF THEIR COLUMNS RAYMOND C. MooRE 1 and RUSSELL M. JEFFORDS 2 CONTENTS [Asterisk (*) indicates type species of genera] PAGE PAGE ABSTRACT 7 Order Cladida Moore & Laudon, 1943 33 INTRODUCTION 7 Suborder Dendrocrinina Bather, 1899 33 Nature and Occurrence of Fossil Crinoid Frag- I Group l'entamer' I 33 ments Family Proctothylacocrinidae Kier, 1952 34 Dissociation of Skeletal Remains 9 Genus Proctothylacocrinus Kier, 1952 34 Materials for Study 9 Proctothylacocrinus *Iongus Kier, 1952? 34 Scope of Article 9 Proctothylacocrinus esseri Kesling, 1965 35 Acknowledgments 1 1 Genus Decacrinus Yeltysheva, 1957 35 ARTICULATED SKELETONS OF CRINOIDS l i Decacrinus *pcnnatus Yeltysheva, 1957 35 Main Morphological Features Il Decacrinus tenuicrenulatus, new 35 Theca Genus Kuzbassocrinus Yeltyshcva, 1957 35 Pelma Kuzbassocrinus *bystrotvi Yeltyshcva, 1957 .. 36 Main Taxonomic Groups 14 Subclass Camerata Wachsmuth & Springer, 1885 .. 36 Occurrence 14 Order Diplobathrida Moore & Laudon, 1943 36 Stratigraphie Significance 16 I Group Pentameri I 36 Pztleoecologic Significance 17 Family Lampterocrinidae Bather, 1899 36 DISARTICULATED SK LETAL REMAINS OF CRINOIDS . 18 Genus Lampterocrinus Roerner, 1860 36 Nature and Usefulness of Remains 18 Lampterocrinus *tennesseensis Roemer, 1860 36 Methods of Study 19 Lampterocrinus sp. A 37 Previous Work 20 Lampterocrinus sp. B 37 Classification and Nomenclature of Crinoids I Group Cyclici 37 Based on Studies of Disarticulated Stem Parts 24 Family Rhodocrinitidae Bassler, 1938 (1854) 37 Objectives and Principles 24 Genus Atactocrinus Weller, 1916 37 Unacceptable Taxonomie Groups 25 Atactocrinus? sp. 37 Acceptable Taxonomie Groups 26 Genus Gilbertsocrinus Phillips, 1836 38 FUTURE STUDIES 28 Gilbertsocrinus vetulus, new 38 SYSTEMATIC DESCRIPTIONS 31 Gilbertsocrinus aequalis, new 39 Subclass Inadunata Wachsmuth & Springer, 1885 .. 31 Gilbertsocrinus cassiope, new 39 Order Disparida Moore & Laudon, 1943 31 Gilbertsocrinus concinnus, new 39 IGroup Pentameri I 31 Genus Elytroclon, new 39 Family locrinidae Moore & Laudon, 1943 31 Elytroclon *elimatus, new 40 Genus locrinus Hall, 1866 32 Genus Ilematerisma, new lotrinus *subcrassus (Meek & Worthen), Ilematerisma *enamma, new 40 1865 32 Order Monobathrida Moore & Laudon, 1943 40 Family Myelodactylidae S. A. Miller, 1883 32 I Group Elliptici I 40 Genus Myelodactylus Hall, 1852 '2 Family Platycrinitidae Bassler, 1938 (1842) ... 40 Myelodactylus ammonis (Bather), 1893 32 Genus Platycrinites Miller, 1821 41 Genus Hyperexochus, new 33 Platycrinites? irroratus, new 41 Hyperexochus *immodicus, new 33 Genus Platystela, new 41 Plat ystela *proiecta, new 42 1 The University of Kansas, and Gin- Paleontohigical Institute, Genus Eucladocrinus Meek, 1872 42 sultant, Esso Production Research Company; 'Esso Poiduction Research Company, Houston, Texas Eucladocrinus? springeri, new 42 PACE PAGE Eucladocrinus? kentuckiensis, new 42 Pentacauliscus *nodosus?, new 52 Genus Platyparallelus, new 43 Genus Pentagonostipes, new 52 Platyparallelus *parilis, new 43 Pentagonstipes *petaloides, new 52 Genus Platyclonus, new 43 Genus Wanakastaurus, new 53 Platyclonus *dispar, new 44 Wanakastaurus *delicatus, new 53 Genus Platyplateium, new 44 Genus Petalerisma, new 53 Platyplateium *texanum, new 44 Petalerisma *eriense, new 53 Platyplateium sp. 45 Genus Pentagonomischus, new 53 Platyplateium pro videncense, new 45 Pentagonomischus *plebeius, new 53 Genus Platycion, new 46 Pentagonomischus *plebeius?, new 54 Platycion *mingusensis, new 46 Genus Asteromischus, new 54 [Group Cyclici I 46 Asteromischus *stellatus, new 54 Family Eucalyptocrinitidae Bassler, 1938 (1854) 46 Asteromischus *stellatus?, new 54 Genus Eucalyptocrinites Goldfuss, 1831 46 Genus Pentagonostaurus, new 54 Eucalyptocrinites? shelbyensis, new 46 Pentagonostaurus *leptus, new 54 Family Dolatocrinidae S. A. Miller, 1890 47 Genus Pentaridica, new 54 Genus Dolatocrinus Lyon, 1857 47 Pentaridica *rothi, new 55 Dolatocrinus exculptus, new 47 Pentaridica simplicis, new 55 Dolatocrinus avis, new 47 Pentaridica pentagonalis, new 55 [Group Varii I 47 Genus Pentagonopternix, new 55 Family Dichocrinidae S. A. Miller, 1889 48 Pentagonopternix *insculptus, new 55 Genus Cam ptocrinus Wachsmuth & Springer, Family Pentamerostelidae, new 55 1897 48 Genus Pentamerostela, new 56 Cam ptocrinus beaveri, new 48 Pentamerostela *delicatula, new 56 Subclass Articulata Miller, 1821 48 Pentamerostela minuta, new 56 Order Isocrinida Sieverts-Doreck in Ubaghs, 1953 48 Genus Floripila, new 56 [Group Pentameril 48 Floripila *florealis, new 57 Family Isocrinidae Gislén, 1924 48 [Group Cycylici I 57 Genus Isselicrinus Rovereto, 1914 48 Family Cyclopagodidae, new 57 lsselicrinus berm udezi, new 49 Genus Cyclo pagoda, new 57 Genus Austinocrinus de Loriol, 1889 49 Cyclopagoda *alternata, new 57 Austinocrinus mexicanus (Springer), 1922 .. 49 Cyclo pagoda costata, new 57 Order Millericrinida Sieverts-Doreck in Ubaghs, Genus Cyclomonile, new 57 1953 49 Cyclomonile *monde, new 58 Suborder Millericrinina Sieverts-Doreck in Genus Apiastrum, new 58 Ubaghs, 1953 49 Apiastrum *candidum, new 58 Suborder Bourgueticrinina Sieverts-Doreck in Genus Euloncherostigma, new 58 Ubaghs, 1953 49 Euloncherostigma *impunitum, new 58 [Group Ellipticil 49 Family Cyclomischidae, new 58 Family Bourgueticrinidae de Loriol, 1882 49 Genus Cyclomischus, new 58 Genus Bourgueticrinus d'Orbigny, 1840 50 Cyclomischus *shelbyensis, new 59 Bourgueticrinus alabamensis de Loriol, 1882 .. 50 Cyclomischus alternatus, new 59 Genus Dunnicrinus Moore, 1967 50 Cyclomischus tennesseensis, new 59 Dunnicrinus *mississippiensis Moore, 1967 .. 50 Genus Hattinanteris, new 59 Subclass and Order Uncertain 50 Hattinanteris *indianensis, new 59 I Group Pentameri I 50 Hattinanteris regularis, new 59 Family Dianthicoelomatidae, new 50 Genus Amsdenanteris, new 60 Genus Dianthicoeloma, new 50 Amsdenantey-is *tennesseensis, new 60 Dianthicoeloma *insuetum, new 50 Genus Rhysocamax, new 60 Dianthicoeloma monile (Eichwald), 1856 .... 51 Rhysocamax *cristata, new 60 Dianthicoeloma pentaporus (Eichwald), 1840 51 Rhysocamax grandis, new 60 Family Pentacauliscidae, new 51 Rhysocamax tuberculata, new 60 Genus Pentacauliscus, new 52 Genus Lomalegnum, new 61 Pentacauliscus *nodosus, new 52 Lomalegnum *hormidium, new 61 PAGEAGE Genus Stiberostaurus, nev, 61 Family Exaesiodiseidae, new 73 Stiberostau rus *aestimatus, new 61 Genus Exaesiodiscus, new 73 Genus Graphosterigma, new 61 Exaesiodiscus *acutus, new 73 Graphosterigma *scriptum, new 62 Exaesiodiscus truncatus, new 73 Graphosterigma synthetes, new 62 Exaesiodiscus minutus, new 74 Graphosterigma gram modes, new 62 Genus Scelidiopternix, new 74 Genus Cylindrocauliscus, new 62 Scelidiopternix *norops, new 74 Cylindrocaultscus *fiski, new 62 Genus Clematidiscus, new 74 Genus Cyphostelechus, new 62 Clematidiscus *denotatus, new 74 Cyphostelechus *claudus, new 63 Genus Exedrodiscus, new 74 Genus Catholworhachis, new 63 Exedrodiscus *excussus, new 74 Catholicorhachis *multifaria, new 63 Genus Ampholenium, new 75 Genus Blothronagma, new 63 Ampholenium *apolegma, new 75 Blothronagma *cinctutum, new 63 Genus Goniostathmus, new 75 Genus Baryschyr, new 64 Goniostathmus *annexus, new 75 Baryschyr *anosus, new 64 Genus Goniocion, new 75 Genus Cyclocaudex, new 65 Goniocion *gonimus, new 75 Cyclocaudex *typicus, new 65 Goniocion turgidus, new 75 Cyclocaudex congregalis, new 65 Genus Cyclostelechus, new 75 Cyclocaudex aptus, new 66 Cyclostelechus *turritus, new 76 Cyclocaudex plenus, new 66 Family Cyclocharacidae, new 76 Cyclocaudcx jucundus, new 66 Genus Cyclocharax, new 76 Cyclocaudex insaturatus, new 66 Cyclocharax *fasciatus, new 76 Cyclocaudex costatus, new 66 Cyclocharax modestus, new 76 Genus Mooreanteris Miller, new 66 Genus Cionerisma, new 76 Mooreanteris *waylandensis Miller, new 67 Cionerisma *exile, new 76 Mooreanteris pert oratus, new 67 Family Floricyclidae, new 76 Mooreantcris sp. 68 Genus Floricyclus, new 76 Family Euracidae, new 68 Floricyclus *hebes, new 77 Genus Furax, new 68 Floricyclus tvelleri, new 77 Furax *ethas, new 68 Floricyclus angustimargo, new 77 Eurax eu genes, new 68 Floricyclus kansasensis, new 77 Genus Pandocrinus StukalMa, 1965 69 Floricyclus pulcher, new 77 Pandocrinus stoloniferus (Hall), 1859 69 Floricyclus granulosus, new 77 Genus Avicantus, new 70 Genus Cyclocion, new 78 Avicantus *dunbari, new 70 Cyclocion *distinctus, new 78 Genus Desidiamphidia, new 70 Genus Plummeranteris, new 78 Desidiam ph idea *frondea, new 70 Plummeranteris *sansaba, new 78 Family Fluetieharacidae, new 70 Genus Lam prosterigma , new 78 Genus Flucticharax, new 70 Lamprosterigma *mirificum, new 79 Flucticharax *undatus, new 71 Lamprosterigma erathense, new 79 Genus Fabalium, new 71 Family Leptocarphiidae, new 79 Fabalium *fabale, new 71 Genus Leptocarphium, new 79 Genus Crenatames, new 71 Leptocarphium *gracile, new 79
Load more

Recommended publications
  • Crinoidea, Echinodermata) from Poland
    Title: Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland Author: Mariusz A. Salamon, William I. Ausich, Tomasz Brachaniec, Bartosz J. Płachno, Przemysław Gorzelak Citation style: Salamon Mariusz A., Ausich William I., Brachaniec Tomasz, Płachno Bartosz J., Gorzelak Przemysław. (2020). Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland. "PeerJ" Vol. 8 (2020), art. no e10641, doi 10.7717/peerj.10641 Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland Mariusz A. Salamon1, William I. Ausich2, Tomasz Brachaniec1, Bartosz J. Pªachno3 and Przemysªaw Gorzelak4 1 Faculty of Natural Sciences, Institute of Earth Sciences, University of Silesia in Katowice, Sosnowiec, Poland 2 School of Earth Sciences, Ohio State University, Columbus, OH, United States of America 3 Faculty of Biology, Institute of Botany, Jagiellonian University in Kraków, Cracow, Poland 4 Institute of Paleobiology, Polish Academy of Sciences, Poland, Warsaw, Poland ABSTRACT Partial crinoid crowns and aboral cups are reported from the Mississippian of Poland for the first time. Most specimens are partially disarticulated or isolated plates, which prevent identification to genus and species, but regardless these remains indicate a rich diversity of Mississippian crinoids in Poland during the Mississippian, especially during the late Viséan. Lanecrinus? sp. is described from the late Tournaisian of the D¦bnik Anticline region. A high crinoid biodiversity occurred during late Viséan of the Holy Cross Mountains, including the camerate crinoids Gilbertsocrinus? sp., Platycrinitidae Indeterminate; one flexible crinoid; and numerous eucladid crinoids, including Cyathocrinites mammillaris (Phillips), three taxa represented by partial cups left in open nomenclature, and numerous additional taxa known only from isolated radial plates, brachial plates, and columnals.
    [Show full text]
  • Sedimentology, Taphonomy, and Palaeoecology of a Laminated
    Palaeogeography, Palaeoclimatology, Palaeoecology 243 (2007) 92–117 www.elsevier.com/locate/palaeo Sedimentology, taphonomy, and palaeoecology of a laminated plattenkalk from the Kimmeridgian of the northern Franconian Alb (southern Germany) ⁎ Franz Theodor Fürsich a, , Winfried Werner b, Simon Schneider b, Matthias Mäuser c a Institut für Paläontologie, Universität Würzburg, Pleicherwall 1, 97070 Würzburg, Germany LMU b Bayerische Staatssammlung für Paläontologie und Geologie and GeoBio-Center , Richard-Wagner-Str. 10, D-80333 München, Germany c Naturkunde-Museum Bamberg, Fleischstr. 2, D-96047 Bamberg, Germany Received 8 February 2006; received in revised form 3 July 2006; accepted 7 July 2006 Abstract At Wattendorf in the northern Franconian Alb, southern Germany, centimetre- to decimetre-thick packages of finely laminated limestones (plattenkalk) occur intercalated between well bedded graded grainstones and rudstones that blanket a relief produced by now dolomitized microbialite-sponge reefs. These beds reach their greatest thickness in depressions between topographic highs and thin towards, and finally disappear on, the crests. The early Late Kimmeridgian graded packstone–bindstone alternations represent the earliest plattenkalk occurrence in southern Germany. The undisturbed lamination of the sediment strongly points to oxygen-free conditions on the seafloor and within the sediment, inimical to higher forms of life. The plattenkalk contains a diverse biota of benthic and nektonic organisms. Excavation of a 13 cm thick plattenkalk unit across an area of 80 m2 produced 3500 fossils, which, with the exception of the bivalve Aulacomyella, exhibit a random stratigraphic distribution. Two-thirds of the individuals had a benthic mode of life attached to hard substrate. This seems to contradict the evidence of oxygen-free conditions on the sea floor, such as undisturbed lamination, presence of articulated skeletons, and preservation of soft parts.
    [Show full text]
  • Palaeoecology and Taphonomy of a Fossil Sea Floor, in the Carboniferous Limestone of Northern England Stephen K
    Palaeoecology and taphonomy of a fossil sea floor, in the Carboniferous Limestone of northern England Stephen K. Donovan Abstract: Death assemblages preserved on bedding planes - fossil ‘sea floors’ - are important palaeontological sampling points. A fossil sea floor from Salthill Quarry (Mississippian), Clitheroe, Lancashire, preserves a mixture of crinoid debris with rarer tabulate corals and has yielded a rich diversity of palaeoecological information. Identifiable crinoids includeGilbertsocrinus sp. and a platycrinitid, associated with columnals/ pluricolumnals, brachials/arms and a basal circlet, crinoid-infesting tabulate corals such as Cladochonus sp. and Emmonsia parasitica (Phillips), and the spoor of a pit-forming organism. Long pluricolumnals showing sub-parallel orientations suggest a current azimuth; one coral is silicified with the mineral beekite. Biotic interactions between ancient organisms Studies of fossil bedding planes and the include the obvious, the subtle and the problematic palaeontological associations preserved thereon are not (Boucot 1990). Obvious associations include the currently in vogue in palaeontology, where the database direct evidence provided by cephalopod hooks (=prey) is currently more important than the unique specimen; preserved in the stomachs of predatory ichthyosaurs it may be that bedding planes are currently more (Pollard, 1968), and intergrowths of Pliocene corals, important as sources of information to sedimentologists bryozoans and barnacles (Harper, 2012). Subtle and ichnologists. Perhaps
    [Show full text]
  • Platycrinites and Associated Crinoids from Pennsylvanian Rocks of the Sacramento Mountains, New Mexico
    Platycrinites and associated crinoids from Pennsylvanian rocks of the Sacramento Mountains, New Mexico by Arthur L. Bowsher and Harrell L. Strimple CIRCULAR 197 New Mexico Bureau of Mines & Mineral Resources 1986 A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY COVER—Platycrinites nactus n.sp., see Fig. 48f for further explanation. Circular 197 New Mexico Bureau of Mines & Mineral Resources A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Platycrinites and associated crinoids from Pennsylvanian rocks of the Sacramento Mountains, New Mexico by Arthur L. Bowsher1 and Harrell L. Strimplet+ 'Yates Petroleum Corporation, Artesia, New Mexico 88201 SOCORRO 1986 iii Contents ABSTRACT 5 PARULOCRINUS Moore and Plummer 15 Parulocrinus globatus n.sp. 15 INTRODUCTION 5 ERISOCRINUS Meek and Worthen 16 GENERAL 5 Erisocrinus typus Meek and Worthen 16 LOCALITIES AND STRATIGRAPHY 6 Erisocrinus aff. erectus Moore and Plummer 17 PLATYCRINITIDS AND INCOMPLETENESS OF THE Erisocrinus sp. 17 GEOLOGIC RECORD 7 ENDELOCRINUS Moore and Plummer 17 SYSTEMATIC DESCRIPTIONS 10 Endelocrinus bifidus Moore and Plummer 17 PLATYCRINITES Miller 10 Endelocrinus perasper n.sp. 17 Platycrinites nactus n.sp. 10 SCIADIOCRINUS Moore and Plummer 18 EXSULACRINUS n.gen. 12 Sciadiocrinus aff. harrisae Moore and Plummer 18 Exsulacrinus alleni n.sp. 12 STENOPECRINUS Strimple 18 LECYTHIOCRINUS White 13 Stenopecrinus glaber n.sp. 18 Lecythiocrinus sacculus n.sp. 13 PERIMESTOCRINUS Moore and Plummer 19 LAUDONOCRINUS Moore and Plummer 14 Perimestocrinus sp. indet. 19 Laudonocrinus
    [Show full text]
  • Progress in Echinoderm Paleobiology
    Journal of Paleontology, 91(4), 2017, p. 579–581 Copyright © 2017, The Paleontological Society 0022-3360/17/0088-0906 doi: 10.1017/jpa.2017.20 Progress in echinoderm paleobiology Samuel Zamora1,2 and Imran A. Rahman3 1Instituto Geológico y Minero de España (IGME), C/Manuel Lasala, 44, 9ºB, 50006, Zaragoza, Spain 〈[email protected]〉 2Unidad Asociada en Ciencias de la Tierra, Universidad de Zaragoza-IGME, Zaragoza, Spain 3Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom 〈[email protected]〉 Echinoderms are a diverse and successful phylum of exclusively Universal elemental homology (UEH) has proven to be one marine invertebrates that have an extensive fossil record dating of the most powerful approaches for understanding homology back to Cambrian Stage 3 (Zamora and Rahman, 2014). There in early pentaradial echinoderms (Sumrall, 2008, 2010; Sumrall are five extant classes of echinoderms (asteroids, crinoids, and Waters, 2012; Kammer et al., 2013). This hypothesis echinoids, holothurians, and ophiuroids), but more than 20 focuses on the elements associated with the oral region, extinct groups, all of which are restricted to the Paleozoic identifying possible homologies at the level of specific plates. (Sumrall and Wray, 2007). As a result, to fully appreciate the Two papers, Paul (2017) and Sumrall (2017), deal with the modern diversity of echinoderms, it is necessary to study their homology of plates associated with the oral area in early rich fossil record. pentaradial echinoderms. The former contribution describes and Throughout their existence, echinoderms have been an identifies homology in various ‘cystoid’ groups and represents a important component of marine ecosystems.
    [Show full text]
  • A New Classification of the Xanthoidea Sensu Lato
    Contributions to Zoology, 75 (1/2) 23-73 (2006) A new classifi cation of the Xanthoidea sensu lato (Crustacea: Decapoda: Brachyura) based on phylogenetic analysis and traditional systematics and evaluation of all fossil Xanthoidea sensu lato Hiroaki Karasawa1, Carrie E. Schweitzer2 1Mizunami Fossil Museum, Yamanouchi, Akeyo, Mizunami, Gifu 509-6132, Japan, e-mail: GHA06103@nifty. com; 2Department of Geology, Kent State University Stark Campus, 6000 Frank Ave. NW, North Canton, Ohio 44720, USA, e-mail: [email protected] Key words: Crustacea, Decapoda, Brachyura, Xanthoidea, Portunidae, systematics, phylogeny Abstract Family Pilumnidae ............................................................. 47 Family Pseudorhombilidae ............................................... 49 A phylogenetic analysis was conducted including representatives Family Trapeziidae ............................................................. 49 from all recognized extant and extinct families of the Xanthoidea Family Xanthidae ............................................................... 50 sensu lato, resulting in one new family, Hypothalassiidae. Four Superfamily Xanthoidea incertae sedis ............................... 50 xanthoid families are elevated to superfamily status, resulting in Superfamily Eriphioidea ......................................................... 51 Carpilioidea, Pilumnoidoidea, Eriphioidea, Progeryonoidea, and Family Platyxanthidae ....................................................... 52 Goneplacoidea, and numerous subfamilies are elevated
    [Show full text]
  • Functional Anatomy and Mode of Life of the Latest Jurassic Crinoid Saccocoma
    Functional anatomy and mode of life of the latest Jurassic crinoid Saccocoma MICHAŁ BRODACKI Brodacki, M. 2006. Functional anatomy and mode of life of the latest Jurassic crinoid Saccocoma. Acta Palaeontologica Polonica 51 (2): 261–270. Loose elements of the roveacrinid Saccocoma from the Tithonian red Rogoża Coquina, Rogoźnik, Pieniny Klippen Belt, Poland, are used to test the contradictory opinions on the mode of life of Saccocoma. The investigated elements belong to three morphological groups, which represent at least two separate species: S. tenella, S. vernioryi, and a third form, whose brachials resemble those of S. vernioryi but are equipped with wings of different shape. The geometry of brachials’ articu− lar surfaces reveals that the arms of Saccocoma were relatively inflexible in their proximal part and left the cup at an angle of no more than 45°, then spread gradually to the sides. There is no evidence that the wings were permanently oriented in either horizontal or vertical position, as proposed by two different benthic life−style hypotheses. The first secundibrachial was probably more similar to the first primibrachial than to the third secundibrachial, in contrast to the traditional assump− tion. The winged parts of the arms were too close to the cup and presumably too stiff to propel the animal in the water effi− ciently. Swimming was probably achieved by movements of the distal, finely branched parts of the arms. The non− horizontal attitude of the winged parts of the arms is also not entirely consistent with the assumption that they functioned as a parachute. Moreover, the wings added some weight and thus increased the energy costs associated with swimming.
    [Show full text]
  • PROGRAMME ABSTRACTS AGM Papers
    The Palaeontological Association 63rd Annual Meeting 15th–21st December 2019 University of Valencia, Spain PROGRAMME ABSTRACTS AGM papers Palaeontological Association 6 ANNUAL MEETING ANNUAL MEETING Palaeontological Association 1 The Palaeontological Association 63rd Annual Meeting 15th–21st December 2019 University of Valencia The programme and abstracts for the 63rd Annual Meeting of the Palaeontological Association are provided after the following information and summary of the meeting. An easy-to-navigate pocket guide to the Meeting is also available to delegates. Venue The Annual Meeting will take place in the faculties of Philosophy and Philology on the Blasco Ibañez Campus of the University of Valencia. The Symposium will take place in the Salon Actos Manuel Sanchis Guarner in the Faculty of Philology. The main meeting will take place in this and a nearby lecture theatre (Salon Actos, Faculty of Philosophy). There is a Metro stop just a few metres from the campus that connects with the centre of the city in 5-10 minutes (Line 3-Facultats). Alternatively, the campus is a 20-25 minute walk from the ‘old town’. Registration Registration will be possible before and during the Symposium at the entrance to the Salon Actos in the Faculty of Philosophy. During the main meeting the registration desk will continue to be available in the Faculty of Philosophy. Oral Presentations All speakers (apart from the symposium speakers) have been allocated 15 minutes. It is therefore expected that you prepare to speak for no more than 12 minutes to allow time for questions and switching between presenters. We have a number of parallel sessions in nearby lecture theatres so timing will be especially important.
    [Show full text]
  • Type and Figured Fossils in the Worthen Collection at the Illinois
    s Cq&JI ^XXKUJtJLI 14oGS: CIR 524 c, 2 TYPE AND FIGURED FOSSILS IN THE WORTHEN COLLECTION AT THE ILLINOIS STATE GEOLOGICAL SURVEY Lois S. Kent GEOLOGICAL ILLINOIS Illinois Department of Energy and Natural Resources, STATE GEOLOGICAL SURVEY DIVISION CIRCULAR 524 1982 COVER: This portrait of Amos Henry Worthen is from a print presented to me by Worthen's great-grandson, Arthur C. Brookley, Jr., at the time he visited the Illinois State Geological Survey in the late 1950s or early 1960s. The picture is the same as that published in connection with the memorial to Worthen in the appendix to Vol. 8 of the Geological Survey of Illinois, 1890. -LSK Kent, Lois S., Type and figured fossils in the Worthen Collection at the Illinois State Geological Survey. — Champaign, III. : Illinois State Geological Survey, 1982. - 65 p. ; 28 cm. (Circular / Illinois State Geological Survey ; 524) 1. Paleontology. 2. Catalogs and collections. 3. Worthen Collection. I. Title. II. Series. Editor: Mary Clockner Cover: Sandra Stecyk Printed by the authority of the State of Illinois/1982/2500 II I IHOI'.MAII '.I 'II Of.ir.AI MIHVI y '> 300 1 00003 5216 TYPE AND FIGURED FOSSILS IN THE WORTHEN COLLECTION AT THE ILLINOIS STATE GEOLOGICAL SURVEY Lois S. Kent | CIRCULAR 524 1982 ILLINOIS STATE GEOLOGICAL SURVEY Robert E. Bergstrom, Acting Chief Natural Resources Building, 615 East Peabody Drive, Champaign, IL 61820 TYPE AND FIGURED FOSSILS IN THE WORTHEN COLLECTION AT THE ILLINOIS STATE GEOLOGICAL SURVEY CONTENTS Acknowledgments 2 Introduction 2 Organization of the catalog 7 Notes 8 References 8 Fossil catalog 13 ABSTRACT This catalog lists all type and figured specimens of fossils in the part of the "Worthen Collection" now housed at the Illinois State Geological Survey in Champaign, Illinois.
    [Show full text]
  • Downloaded from Brill.Com09/26/2021 12:42:37AM Via Free Access 102 A
    Contributions to Zoology, 72 (2-3) 101-104 (2003) SPB Academic Publishing bv, The Hague Decapod crustaceans from the Oligocene of the Ligure Piemontese Basin, northern Italy Antonio De Angeli¹ & Sergio Marangon² 'Associazione Amici del Museo civico G. Zannato Piazza Marconi 15, 1-36075 Montecchio Maggiore 2 (Vicenza), Italy; c/o Via Anemone 8, 1-20090 Segrate (Milano), Italy Keywords: Crustacea, Decapoda, Oligocene, Italy M. Abstract species postulosus. Subsequently, new material housed in the collections of the Museo civico at Lithologically, the decapod-bearing levels of Rupelian (Oligo- Ovada and the Museo regionale di Scienze naturali cene) in the Ligure Piemontese Basin, are characterizedby age at Torino, was studied by Allasinaz (1987), who an alternation of greyish blue marls with nodular elements and described'Calappilia mainii Alassinaz, C. vicetina silt-rich, occasionally sandy, marls. The fossil studied for the and Portunus Fabiani, Calappa sp. monspeliensis present note have been collected mainly from pebblesor nodules Milne The additions in- which (A. Edwards). most recent were eroded out of the higher levels exposed of this clude rostratus & De sedimentary complex, referred to as the ‘Formazione di Mol- Cherpiocarcinus Marangon are’. These levels overli the ‘Formazioni continentali delle Brecce Angeli (Fig. 1/1) and Calappilia verrucosa A. Milne di studied al. Costa Cravara e Charrier et (1964) Pianfolco’, by Edwards (Fig. 1/2) from Cherpione (Pianfolco) (see and dated as Early Rupelian. The levels yielding brachyuran Marangon & De Angeli, 1997; De Angeli & Maran- fossils were attributed by Allasinaz (1987) to the transition bet- in Paralbunea gon, press) and galantensis from ween the ‘Formazione di Molare’ and the overlying ‘Marne di Contra Galanti (Cassinelle) (see De Angeli & Maran- Rigoroso’, and by Bianco (1985) and Balossino& Bianco (1986) to the biozone of the foraminifer Operculina complanata (De- gon, 2001).
    [Show full text]
  • United States
    DEPARTMENT OF THE INTERIOR BULLETIN OF THE UNITED STATES ISTo. 146 WASHINGTON GOVERNMENT Pit IN TING OFFICE 189C UNITED STATES GEOLOGICAL SURVEY CHAKLES D. WALCOTT, DI11ECTOK BIBLIOGRAPHY AND INDEX NORTH AMEEICAN GEOLOGY, PALEONTOLOGY, PETEOLOGT, AND MINERALOGY THE YEA.R 1895 FEED BOUGHTON WEEKS WASHINGTON Cr O V E U N M K N T P K 1 N T I N G OFFICE 1890 CONTENTS. Page. Letter of trail smittal...... ....................... .......................... 7 Introduction.............'................................................... 9 List of publications examined............................................... 11 Classified key to tlio index .......................................... ........ 15 Bibliography ............................................................... 21 Index....................................................................... 89 LETTER OF TRANSMITTAL DEPARTMENT OF THE INTEEIOE, UNITED STATES GEOLOGICAL SURVEY, DIVISION OF GEOLOGY, Washington, D. 0., June 23, 1896. SIR: I have the honor to transmit herewith the manuscript of a Bibliography and Index of North American Geology, Paleontology, Petrology, and Mineralogy for the year 1895, and to request that it be published as a bulletin of the Survey. Very respectfully, F. B. WEEKS. Hon. CHARLES D. WALCOTT, Director United States Geological Survey. 1 BIBLIOGRAPHY AND INDEX OF NORTH AMERICAN GEOLOGY, PALEONTOLOGY, PETROLOGY, AND MINER­ ALOGY FOR THE YEAR 1895. By FRED BOUGHTON WEEKS. INTRODUCTION. The present work comprises a record of publications on North Ameri­ can geology, paleontology, petrology, and mineralogy for the year 1895. It is planned on the same lines as the previous bulletins (Nos. 130 and 135), excepting that abstracts appearing in regular periodicals have been omitted in this volume. Bibliography. The bibliography consists of full titles of separate papers, classified by authors, an abbreviated reference to the publica­ tion in which the paper is printed, and a brief summary of the con­ tents, each paper being numbered for index reference.
    [Show full text]
  • Reconstructions of Late Ordovician Crinoids and Bryozoans from the Decorah Shale, Upper Mississippi Valley Sibo Wang Senior Inte
    Reconstructions of Late Ordovician crinoids and bryozoans from the Decorah Shale, Upper Mississippi Valley Sibo Wang Senior Integrative Exercise March 10, 2010 Submitted in partial fulfillment of the requirements for a Bachelor of Arts degree from Carleton College, Northfield, Minnesota TABLE OF CONTENTS ABSTRACT INTRODUCTION ........................................................................................................ 01 GEOLOGIC SETTING ................................................................................................ 03 Late Ordovician world ................................................................................. 03 Southern Minnesota and the Decorah Shale ............................................... 03 Benthic community ....................................................................................... 05 Marine conditions ........................................................................................ 05 CRINOIDS ................................................................................................................. 06 General background and fossil record ........................................................ 06 Anatomy ....................................................................................................... 07 Decorah Shale crinoids ................................................................................10 BRYOZOANS ............................................................................................................. 10 General background and
    [Show full text]