Composition and Palaeogeographic Position of the Early Permian Jambi Fl Ora from Sumatra
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
A Comparative Study of the Primary Vascular System Of
Amer. J. Bot. 55(4): 464-472. 1!16'>. A COMPARATIVE STUDY OF THE PRIMARY VASCULAR SYSTE~1 OF CONIFERS. III. STELAR EVOLUTION IN GYMNOSPERMS 1 KADAMBARI K. NAMBOODIRI2 AND CHARLES B. BECK Department of Botany, University of Michigan, Ann Arbor ABST RAe T This paper includes a survey of the nature of the primary vascular system in a large number of extinct gymnosperms and progymnosperms. The vascular system of a majority of these plants resembles closely that of living conifers, being characterized, except in the most primitive forms which are protostelic, by a eustele consisting of axial sympodial bundles from which leaf traces diverge. The vascular supply to a leaf originates as a single trace with very few exceptions. It is proposed that the eustele in the gyrr.nosperms has evolved directly from the protostele by gradual medullation and concurrent separation of the peripheral conducting tissue into longitudinal sympodial bundles from which traces diverge radially. A subsequent modification results in divergence of traces in a tangential plane, The closed vascular system of conifers with opposite and whorled phyllotaxis, in which the vascular supply to a leaf originates as two traces which subsequently fuse, is considered to be derived from the open sympodial system characteristic of most gymnosperms. This hypothesis of stelar evolution is at variance with that of Jeffrey which suggests that the eustele of seed plants is derived by the lengthening and overlapping of leaf gaps in a siphonostele followed by further reduction in the resultant vascular bundles. This study suggests strongly that the "leaf gap" of conifers and other extant gymnosperms is not homologous with that of siphonostelic ferns and strengthens the validity of the view that Pterop sida is an unnatural group. -
Prepared in Cooperation with the Lllinois State Museum, Springfield
Prepared in cooperation with the lllinois State Museum, Springfield Richard 1. Leary' and Hermann W. Pfefferkorn2 ABSTRACT The Spencer Farm Flora is a compression-impression flora of early Pennsylvanian age (Namurian B, or possibly Namurian C) from Brown County, west-central Illinois. The plant fossils occur in argillaceous siltstones and sand- stones of the Caseyville Formation that were deposited in a ravine eroded in Mississippian carbonate rocks. The plant-bearing beds are the oldest deposits of Pennsylva- nian age yet discovered in Illinois. They were formed be- fore extensive Pennsylvanian coal swamps developed. The flora consists of 29 species and a few prob- lematical forms. It represents an unusual biofacies, in which the generally rare genera Megalopteris, Lesleya, Palaeopteridium, and Lacoea are quite common. Noegger- athiales, which are seldom present in roof-shale floras, make up over 20 percent of the specimens. The Spencer Farm Flora is an extrabasinal (= "upland1') flora that was grow- ing on the calcareous soils in the vicinity of the ravine in which they were deposited. It is suggested here that the Noeggerathiales may belong to the Progymnosperms and that Noeggerathialian cones might be derived from Archaeopteris-like fructifica- tions. The cone genus Lacoea is intermediate between Noeggerathiostrobus and Discini tes in its morphology. Two new species, Lesleya cheimarosa and Rhodeop- teridi urn phillipsii , are described, and Gulpenia limbur- gensis is reported from North America for the first time. INTRODUCTION The Spencer Farm Flora (table 1) differs from other Pennsylvanian floras of the Illinois Basin. Many genera and species in the Spencer Farm Flora either have not been found elsewhere in the basin or are very l~uratorof Geology, Illinois State Museum, Springfield. -
Evolution of the Female Conifer Cone Fossils, Morphology and Phylogenetics
DEPARTMENT OF BIOLOGICAL AND ENVIRONMENTAL SCIENCES EVOLUTION OF THE FEMALE CONIFER CONE FOSSILS, MORPHOLOGY AND PHYLOGENETICS Daniel Bäck Degree project for Bachelor of Science with a major in Biology BIO602, Biologi: Examensarbete – kandidatexamen, 15 hp First cycle Semester/year: Spring 2020 Supervisor: Åslög Dahl, Department of Biological and Environmental Sciences Examiner: Claes Persson, Department of Biological and Environmental Sciences Front page: Abies koreana (immature seed cones), Gothenburg Botanical Garden, Sweden Table of contents 1 Abstract ............................................................................................................................... 2 2 Introduction ......................................................................................................................... 3 2.1 Brief history of Florin’s research ............................................................................... 3 2.2 Progress in conifer phylogenetics .............................................................................. 4 3 Aims .................................................................................................................................... 4 4 Materials and Methods ........................................................................................................ 4 4.1 Literature: ................................................................................................................... 4 4.2 RStudio: ..................................................................................................................... -
X. the Conifers and Ginkgo
X. The Conifers and Ginkgo Now we turn our attention to the Coniferales, another great assemblage of seed plants. First let's compare the conifers with the cycads: Cycads Conifers few apical meristems per plant many apical meristems per plant leaves pinnately divided leaves undivided wood manoxylic wood pycnoxylic seeds borne on megaphylls seeds borne on stems We should also remember that these two groups have a lot in common. To begin with, they are both groups of woody seed plants. They are united by a small set of derived features: 1) the basic structure of the stele (a eustele or a sympodium, two words for the same thing) and no leaf gaps 2) the design of the apical meristem (many initials, subtended by a slowly dividing group of cells called the central mother zone) 3) the design of the tracheids (circular-bordered pits with a torus) We have three new seed plant orders to examine this week: A. Cordaitales This is yet another plant group from the coal forest. (Find it on the Peabody mural!) The best-known genus, Cordaites, is a tree with pycnoxylic wood bearing leaves up to about a foot and a half long and four inches wide. In addition, these trees bore sporangia (micro- and mega-) in strobili in the axils of these big leaves. The megasporangia were enclosed in ovules. Look at fossils of leaves and pollen-bearing shoots of Cordaites. The large, many-veined megaphylls are ancestral to modern pine needles; the shoots are ancestral to pollen-bearing strobili of modern conifers. 67 B. -
A Reappraisal of Mississippian (Tournaisian and Visean) Adpression Floras from Central and Northwestern Europe
Zitteliana A 54 (2014) 39 A reappraisal of Mississippian (Tournaisian and Visean) adpression floras from central and northwestern Europe Maren Hübers1, Benjamin Bomfleur2*, Michael Krings3, Christian Pott2 & Hans Kerp1 1Forschungsstelle für Paläobotanik am Geologisch-Paläontologischen Institut, Westfälische Zitteliana A 54, 39 – 52 Wilhelms-Universität Münster, Heisenbergstraße 2, 48149 Münster, Germany München, 31.12.2014 2Swedish Museum of Natural History, Department of Paleobiology, Box 50007, SE-104 05, Stockholm, Sweden Manuscript received 3Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig- 01.02.2014; revision Maximilians-Universität, and Bayerische Staatssammlung für Paläontologie und Geologie, Richard- accepted 07.04.2014 Wagner-Straße 10, 80333 Munich, Germany ISSN 1612 - 412X *Author for correspondence and reprint requests: E-mail: [email protected] Abstract Mississippian plant fossils are generally rare, and in central and northwestern Europe especially Tournaisian to middle Visean fossil floras are restricted to isolated occurrences. While sphenophytes and lycophytes generally are represented by only a few widespread and long-ranging taxa such as Archaeocalamites radiatus, Sphenophyllum tenerrimum and several species of Lepidodendropsis and Lepido- dendron, Visean floras in particular show a remarkably high diversity of fern-like foliage, including filiform types (Rhodea, Diplotmema), forms with bipartite fronds (Sphenopteridium, Diplopteridium, Spathulopteris, Archaeopteridium), others with monopodial, pinnate fronds (Anisopteris, Fryopsis) and still others characterized by several-times pinnate fronds (e.g., Adiantites, Triphyllopteris, Sphenopteris, Neu- ropteris). Most of these leaf types have been interpreted as belonging to early seed ferns, whereas true ferns seem to have been rare or lacking in impression/compression floras. In the upper Visean, two types of plant assemblages can be distinguished, i.e., the northern Kohlenkalk-type and the south-eastern Kulm-type assemblage. -
The Joggins Cliffs of Nova Scotia: B2 the Joggins Cliffs of Nova Scotia: Lyell & Co's "Coal Age Galapagos" J.H
GAC-MAC-CSPG-CSSS Pre-conference Field Trips A1 Contamination in the South Mountain Batholith and Port Mouton Pluton, southern Nova Scotia HALIFAX Building Bridges—across science, through time, around2005 the world D. Barrie Clarke and Saskia Erdmann A2 Salt tectonics and sedimentation in western Cape Breton Island, Nova Scotia Ian Davison and Chris Jauer A3 Glaciation and landscapes of the Halifax region, Nova Scotia Ralph Stea and John Gosse A4 Structural geology and vein arrays of lode gold deposits, Meguma terrane, Nova Scotia Rick Horne A5 Facies heterogeneity in lacustrine basins: the transtensional Moncton Basin (Mississippian) and extensional Fundy Basin (Triassic-Jurassic), New Brunswick and Nova Scotia David Keighley and David E. Brown A6 Geological setting of intrusion-related gold mineralization in southwestern New Brunswick Kathleen Thorne, Malcolm McLeod, Les Fyffe, and David Lentz A7 The Triassic-Jurassic faunal and floral transition in the Fundy Basin, Nova Scotia Paul Olsen, Jessica Whiteside, and Tim Fedak Post-conference Field Trips B1 Accretion of peri-Gondwanan terranes, northern mainland Nova Scotia Field Trip B2 and southern New Brunswick Sandra Barr, Susan Johnson, Brendan Murphy, Georgia Pe-Piper, David Piper, and Chris White The Joggins Cliffs of Nova Scotia: B2 The Joggins Cliffs of Nova Scotia: Lyell & Co's "Coal Age Galapagos" J.H. Calder, M.R. Gibling, and M.C. Rygel Lyell & Co's "Coal Age Galapagos” B3 Geology and volcanology of the Jurassic North Mountain Basalt, southern Nova Scotia Dan Kontak, Jarda Dostal, -
Mujal Et Al., 2017)
Aridification across the Carboniferous–Permian transition in Central equatorial Pangea: the Catalan Pyrenean succession (NE Iberian Peninsula) Eudald Mujal*a,b, Josep Fortunyb,c, Josep Marmib, Jaume Dinarès-Turelld, Arnau Boletb, Oriol Omsa a Departament de Geologia, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain. e-mail addresses: [email protected], [email protected] b Institut Català de Paleontologia Miquel Crusafont, ICTA-ICP building, c/ de les columnes, s/n, E-08193 Cerdanyola del Vallès, Spain. e-mail addresses: [email protected], [email protected], [email protected] c Centre de Recherches en Paléobiodiversité et Paléoenvironnements, UMR 7202 CNRS-MNHN-UPMC, Muséum national d'Histoire naturelle, 8 rue Buffon, CP38, F- 75005 Paris, France. d Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, I-00143 Roma, Italy. e-mail address: [email protected] *Corresponding author: E. Mujal, [email protected] Abstract The Carboniferous–Permian terrestrial successions record a global climatic shift from icehouse to hothouse conditions. Our multidisciplinary study documents an aridification trend throughout the ~1000 m thick composite terrestrial succession of the western Catalan Pyrenees (NE Iberian Peninsula), representing this time period. The detailed stratigraphic framework integrates sedimentology, paleopedology, biochronology (plant 1 fossils and tetrapod footprints) and geochronology (paleomagnetism). Additional absolute age correlation is also carried out. The new and reviewed data show that the late Carboniferous wet environments (with short drought periods) progressively changed to a strong seasonal semi-arid and arid climate (with short humid periods) through the early Permian. This paleoclimatic trend supports the previously suggested aridification of the Pangean pan-tropical belt, and supports the hypothesis of the influence of the recurrent climatic fluctuations in Central Pangea, being tentatively correlated to the Southern Gondwanan glaciation-deglaciation periods. -
A High-Latitude Gondwanan Lagerstätte
University of Birmingham A high-latitude Gondwanan lagerstätte : the Permian permineralised peat biota of the Prince Charles Mountains, Antarctica Slater, Ben J.; Mcloughlin, Stephen; Hilton, Jason DOI: 10.1016/j.gr.2014.01.004 License: Creative Commons: Attribution (CC BY) Document Version Publisher's PDF, also known as Version of record Citation for published version (Harvard): Slater, BJ, Mcloughlin, S & Hilton, J 2014, 'A high-latitude Gondwanan lagerstätte : the Permian permineralised peat biota of the Prince Charles Mountains, Antarctica', Gondwana Research. https://doi.org/10.1016/j.gr.2014.01.004 Link to publication on Research at Birmingham portal Publisher Rights Statement: Eligibility for repository : checked 03/06/2014 General rights Unless a licence is specified above, all rights (including copyright and moral rights) in this document are retained by the authors and/or the copyright holders. The express permission of the copyright holder must be obtained for any use of this material other than for purposes permitted by law. •Users may freely distribute the URL that is used to identify this publication. •Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose of private study or non-commercial research. •User may use extracts from the document in line with the concept of ‘fair dealing’ under the Copyright, Designs and Patents Act 1988 (?) •Users may not further distribute the material nor use it for the purposes of commercial gain. Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. -
091 148-Fritz/Krainer .Indd
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Carinthia II Jahr/Year: 2007 Band/Volume: 197_117 Autor(en)/Author(s): Fritz Adolf, Krainer Karl Artikel/Article: Vegetationsgeschichtliche und florenstratigraphische Untersuchungen im Oberkarbon und Unterperm der Ost- und Südalpen (Teil 2) 91-148 ©Naturwissenschaftlicher Verein für Kärnten, Austria, download unter www.biologiezentrum.at Carinthia II ■ 197./117. Jahrgang ■ Seiten 91–148 ■ Klagenfurt 2007 91 Vegetationsgeschichtliche und fl orenstratigraphische Untersuchungen im Oberkarbon und Unterperm der Ost- und Südalpen (Teil 2) Von Adolf FRITZ und Karl KRAINER A4a: Der Aufschluss auf der Ofenalm A4: DIE FLOREN Probenaufsammlungen DER CORONA- 21. 07. 1982; 30. 07. 1982; 27. 08. 1982; 07. 08. 1988; 07. 07. 1991; 03. 08. 1991. FORMATION Der Fundpunkt Ofenalm liegt ca. 200 m nordwestlich der Ofenalm am Fußweg (Mittlere zum Garnitzensattel in ca. 1650 m Seehöhe. Die fossilen Pfl anzenreste stammen aus Kalkarme einem graubraunen, siltigen Tonschiefer, der auffallend kleinstückig zerfällt. Die Schichtgruppe) Feinstrukturen der Pfl anzenabdrücke sind in vorzüglicher Qualität erhalten, was dafür spricht, dass die Pfl anzenteile sehr rasch ohne nennenswerten Transport in das Sedi- ment eingebettet wurden. Die geologischen Verhältnisse Der fossilführende Horizont liegt im tieferen Teil der Corona-Forma tion. Die Co- rona-Formation erreicht eine Mächtigkeit von 300 m, ist im tieferen Teil rein klastisch ausgebildet und besteht aus einer Wechselfolge von Siltsteinen mit zwischengeschal- teten Tonschiefern, Sandsteinen und quarzreichen Konglomeraten (Details in KRAINER 1992). Ungefähr 250 m nordwestlich der Fundstelle befi nden sich noch die Halden eines ehemaligen Bergbaues auf Anthrazitkohle. Abgebaut wurden geringmächtige Anthrazitkohlefl öze im tieferen Teil der Corona-Formation. -
Faciès and Biostratigraphy of the Late Carboniferous/Early Permian Sedimentary Séquence in the Carnic Alps (Austria/Ltaly)
Faciès and biostratigraphy of the Late Carboniferous/Early Permian sedimentary séquence in the Carnic Alps (Austria/ltaly) Karl KRAINER Institute for Geology and Paleontology, University of Innsbruck, Innrain 52, A-6020 Innsbruck (Austria) Karl.Krainer® uibk.ac.at Vladimir DAVYDOV Department of Geosciences, Boise State University, 1910 University Drive, Boise, Idaho 83725 (USA) [email protected] In memoriam Franz Kahler (1900-1996) Krainer K. & Davydov V. 1998. — Faciès and biostratigraphy of the Late Carboniferous/Early Permian sedimentary séquence in the Carnic Alps (Austria/ltaly), in Crasquin-Soleau S., Izart A., Vaslet D. & De Wever P. (eds), Peri-Tethys: stratigraphie cor- relations 2, Geodiversitas 20 (4) : 643-662. ABSTRACT The Late Catbonifetous/Early Permian séquence in the Carnic Alps (Austria/ltaly) is a more than 2000 m thick succession of shallow matine clastic and carbonate sedimentaty rocks. The succession unconformably overlies rhe folded Variscan basement and is divided into Bombaso Fotmation, Auernig Group, Rartendotf Group and Trogkofel Group. Auernig Group and Rattendorf Group are charactetized by clastic-catbonate cycles related to Gondwana glacioeustatic sea level changes. Catbonates contain abundant fossils throughout the séquence, biostratigtaphy is mainly based on fusulinids. Fine-grained clastic intervais contain abundant plant fossils, allowing a close corrélation with fluvial succession of the Eastern Alps KEYWORDS (Stangnock Fotmation of the Gutktal Nappe). Fusulinids of the Carnic Alps Peri-Tethys, Late Carboniferous, show high similarity wirh those of the Russian Platfotm, Donets Basin and Early Permian, Ptedonets Trough, Southern Urals and particulatly with Central Asia. Carnic Alps, faciès, Uppermost Moscovian, Kasimovian, Gzhelian, lowermost Asselian, late biostratigraphy, Asselian, Sakmarian and Artinskian équivalents ate established and précise fusulinids, corrélation with sttatotype légions have been completed. -
Novas Evidências E Análise Quantitativa Das Interações Inseto-Planta No Permiano Inferior Da Bacia Do Paraná
UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL INSTITUTO DE GEOCIÊNCIAS PROGRAMA DE PÓS-GRADUAÇÃO EM GEOCIÊNCIAS NOVAS EVIDÊNCIAS E ANÁLISE QUANTITATIVA DAS INTERAÇÕES INSETO-PLANTA NO PERMIANO INFERIOR DA BACIA DO PARANÁ ESTHER REGINA DE SOUZA PINHEIRO ORIENTADOR – Prof. Dr. Roberto Iannuzzi Porto Alegre - 2011 UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL INSTITUTO DE GEOCIÊNCIAS PROGRAMA DE PÓS-GRADUAÇÃO EM GEOCIÊNCIAS NOVAS EVIDÊNCIAS E ANÁLISE QUANTITATIVA DAS INTERAÇÕES INSETO-PLANTA NO PERMIANO INFERIOR DA BACIA DO PARANÁ ESTHER REGINA DE SOUZA PINHEIRO ORIENTADOR – Prof. Dr. Roberto Iannuzzi BANCA EXAMINADORA Prof. Dr. Karen Adami-Rodrigues – Universidade Federal de Pelotas Prof. Dr. Rosemarie Rohn Davies– Universidade Estadual Paulista Prof. Dr. Tânia Lindner Dutra – Universidade do Vale do Rio dos Sinos Dissertação de Mestrado apresentada como requisito parcial para a obtenção do Título de Mestre em Geociências. Porto Alegre – 2011 Pinheiro, Esther Regina de Souza Novas evidências e análise quantitativa das interações inseto-planta no permiano inferior da Bacia do Paraná. / Esther Regina de Souza Pinheiro. - Porto Alegre : IGEO/UFRGS, 2010. [72 f.] il. Dissertação (Mestrado). - Universidade Federal do Rio Grande do Sul. Instituto de Geociências. Programa de Pós-Graduação em Geociências. Porto Alegre, RS - BR, 2010. Orientação: Prof. Dr. Roberto Iannuzzi 1. Herbivoria. 2. Análise multivariada. 3. Folhas glossopterídeas. 4. Folhas cordaitaleanas. 5. Bacia do Paraná. I. Título _____________________________ Catalogação na Publicação Biblioteca Geociências - UFRGS Miriam Alves CRB 10/1947 DEDICATÓRIA Dedico essa dissertação a pessoa que mais apoiou minha trajetória acadêmica. Me apresentou a ciência da forma mais bonita que ela pode ser. Foi muito mais que um amigo, muitas vezes um orientador. -
Registre Sedimentari I Icnològic Del Fini-Carbonífer, Permià I Triàsic Continentals Dels Pirineus Catalans Evolució I Crisis Paleoambientals a L’Equador De Pangea
Departament de Geologia, Facultat de Ciències, Universitat Autònoma de Barcelona Registre sedimentari i icnològic del fini-Carbonífer, Permià i Triàsic continentals dels Pirineus Catalans Evolució i crisis paleoambientals a l’equador de Pangea Memòria presentada per Eudald Mujal Grané per optar al títol de Doctor en Geologia Juny de 2017 Tesi doctoral dirigida per: Dr. Oriol Oms Llobet, Departament de Geologia, Universitat Autònoma de Barcelona Dr. Josep Fortuny Terricabras, Institut Català de Paleontologia Miquel Crusafont Dr. Oriol Oms Llobet Dr. Josep Fortuny Terricabras Eudald Mujal Grané Annexes Annex 1. First footprints occurrence from the Muschelkalk detriti- cal unit of the Catalan Basin: 3D analyses and palaeoichnological implications Annex 1. First footprints occurrence from the Muschelkalk detritical unit of the Catalan Basin: 3D analyses and palaeoichnological implications L’Annex 1 correspon al treball publicat a la revista Spanish Journal of Palaeontology el juliol de 2015: Mujal, E., Fortuny, J., Rodríguez-Salgado, P., Diviu, M., Oms, O., Galobart, À., 2015. First footprints occurrence from the Muschelkalk detritical unit of the Catalan Basin: 3D analyses and palaeoichnolo- gical implications. Spanish Journal of Palaeontology, 30(1): 97–108. En aquest article l’autor E. M. ha contribuït en: elaboració dels models fotogramètrics 3D de les icni- tes; anàlisis de sedimentologia i icnologia; interpretació i discussió de tots els resultats; redacció del manuscrit; preparació i maquetació de les figures 3 i 4; autor per correspondència amb la revista. 244 Annex 1. First footprints occurrence from the Muschelkalk detritical unit of the Catalan Basin: 3D analyses and palaeoichnological implications 245 Annex 1. First footprints occurrence from the Muschelkalk detritical unit of the Catalan Basin: 3D analyses and palaeoichnological implications 246 Annex 1.