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M.A. TAYLOR 1 and R.D. CLARK 2 Methodology and Repositories
Ichthyosaurs from the Lower Lias (Lower Jurassic) of Banwell, Somerset ICHTHYOSAURS FROM THE LOWER LIAS (LOWER JURASSIC) OF BANWELL, SOMERSET M.A. TAYLOR 1 AND R.D. CLARK 2 Taylor, M.A. and Clark, R.D. 2016. Ichthyosaurs from the Lower Lias (Lower Jurassic) of Banwell, Somerset. Geoscience in South-West England, 14, 59–71. Two Lower Jurassic ichthyosaurs, lost in a 1940s air raid, are identified from archival records and surviving 19th century plaster casts distributed by their owner, the Bristol Institution for the Advancement of Science, Literature and the Arts. One was the type specimen of Ichthyosaurus latimanus Owen, 1840. The other, initially labelled Ichthyosaurus intermedius Conybeare, 1822, was the first ichthyosaur in which remains of the soft tissue of the tail fin were identified, confirming Richard Owen’s earlier prediction. Unfortunately Owen’s published account conflated the two specimens, apparently by the erroneous transposition of a passage of text. Owen possibly regarded the second specimen as the type of I. intermedius. In 1889 Richard Lydekker referred it to Ichthyosaurus conybeari Lydekker, 1888. For unknown reasons, he caused further confusion by suppressing the fact that both ichthyosaur specimens came from Banwell. Banwell is shown to have been a minor but significant source of Lower Lias fossil vertebrates, and also the type locality of the fish Tetragonolepis monilifer Agassiz, 1837, apparently from quarries in the lowermost Jurassic beds at Knightcott. The Bristol Institution assisted Edward Wilson (1808–1888) to obtain at least some of the West Country marine reptiles which his brother Dr Thomas Bellerby Wilson (1807–1865) donated to the Academy of Natural Sciences of Philadelphia, U.S.A. -
The Skull of the Upper Cretaceous Snake Dinilysia Patagonica Smith-Woodward, 1901, and Its Phylogenetic Position Revisited
Zoological Journal of the Linnean Society, 2012, 164, 194–238. With 24 figures The skull of the Upper Cretaceous snake Dinilysia patagonica Smith-Woodward, 1901, and its phylogenetic position revisited HUSSAM ZAHER1* and CARLOS AGUSTÍN SCANFERLA2 1Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, Ipiranga, 04263-000, São Paulo, SP, Brasil 2Laboratorio de Anatomía Comparada y Evolución de los Vertebrados. Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’, Av. Angel Gallardo 470 (1405), Buenos Aires, Argentina Received 23 April 2010; revised 5 April 2011; accepted for publication 18 April 2011 The cranial anatomy of Dinilysia patagonica, a terrestrial snake from the Upper Cretaceous of Argentina, is redescribed and illustrated, based on high-resolution X-ray computed tomography and better preparations made on previously known specimens, including the holotype. Previously unreported characters reinforce the intriguing mosaic nature of the skull of Dinilysia, with a suite of plesiomorphic and apomorphic characters with respect to extant snakes. Newly recognized plesiomorphies are the absence of the medial vertical flange of the nasal, lateral position of the prefrontal, lizard-like contact between vomer and palatine, floor of the recessus scalae tympani formed by the basioccipital, posterolateral corners of the basisphenoid strongly ventrolaterally projected, and absence of a medial parietal pillar separating the telencephalon and mesencephalon, amongst others. We also reinterpreted the structures forming the otic region of Dinilysia, confirming the presence of a crista circumfenes- tralis, which represents an important derived ophidian synapomorphy. Both plesiomorphic and apomorphic traits of Dinilysia are treated in detail and illustrated accordingly. Results of a phylogenetic analysis support a basal position of Dinilysia, as the sister-taxon to all extant snakes. -
A Timeline of Significant Events in the Development of North American Mammalogy
SpecialSpecial PublicationsPublications MuseumMuseum ofof TexasTexas TechTech UniversityUniversity NumberNumber xx66 21 Novemberxx XXXX 20102017 A Timeline of SignificantTitle Events in the Development of North American Mammalogy Molecular Biology Structural Biology Biochemistry Microbiology Genomics Bioinformatics and Computational Biology Computer Science Statistics Physical Chemistry Information Technology Mathematics David J. Schmidly, Robert D. Bradley, Lisa C. Bradley, and Richard D. Stevens Front cover: This figure depicts a chronological presentation of some of the significant events, technological breakthroughs, and iconic personalities in the history of North American mammalogy. Red lines and arrows depict the chronological flow (i.e., top row – read left to right, middle row – read right to left, and third row – read left to right). See text and tables for expanded interpretation of the importance of each person or event. Top row: The first three panels (from left) are associated with the time period entitled “The Emergence Phase (16th‒18th Centuries)” – Mark Catesby’s 1748 map of Carolina, Florida, and the Bahama Islands, Thomas Jefferson, and Charles Willson Peale; the next two panels represent “The Discovery Phase (19th Century)” – Spencer Fullerton Baird and C. Hart Merriam. Middle row: The first two panels (from right) represent “The Natural History Phase (1901‒1960)” – Joseph Grinnell and E. Raymond Hall; the next three panels (from right) depict “The Theoretical and Technological Phase (1961‒2000)” – illustration of Robert H. MacArthur and Edward O. Wilson’s theory of island biogeography, karyogram depicting g-banded chromosomes, and photograph of electrophoretic mobility of proteins from an allozyme analysis. Bottom row: These four panels (from left) represent the “Big Data Phase (2001‒present)” – chromatogram illustrating a DNA sequence, bioinformatics and computational biology, phylogenetic tree of mammals, and storage banks for a supercomputer. -
Biostratigraphy and Paleoenvironmental Reconstructions
Biostratigraphy and Paleoenvironment in the Neogene of the High Northern Latitudes Insights from the palynomorph record of ODP Hole 907A in the Iceland Sea Kumulative Dissertation Zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften Dr. rer. nat. am Fachbereich Geowissenschaften der Universität Bremen vorgelegt von Michael Schreck Bremerhaven, 2012 Gutachter der Dissertation: Prof. Dr. Ruediger Stein PD Dr. Karin Zonneveld Tag des Promotionskolloquiums: 11.07.2012 Name: Michael Schreck Datum: 16.05.2012 Anschrift: Bürgermeister-Smidt-Str. 171, 27568 Bremerhaven Erklärung Hiermit versichere ich, dass ich 1. die Arbeit ohne unerlaubte fremde Hilfe angefertigt habe 2. keine anderen als die von mir angegebenen Quellen und Hilfsmittel benutzt habe und 3. die den benutzte Werken wörtlich oder inhaltlich entnommenen Stellen als solche kenntlich gemacht habe. Bremerhaven, den 16.05.2012 ..................................... “BUGS DON’T LIE.“ Thomas Cronin (Urbino, Italy, 2009) Abstract The Neogene is of crucial importance for our understanding of Earth’s climate evolution as it was finally pushed into the cold Quaternary climate with its major glaciations in the high northern latitudes. Notwithstanding, the response of the high northern latitudes to this Cenozoic transition from the Greenhouse into the Icehouse world yet remains poorly constrained due to the virtual absence of calcareous microfossils in high latitude Neogene sediments. This thesis examines the influence of the long-term climate deterioration on Miocene to Pliocene marine palynomorph assemblages (dinoflagellate cysts, prasinophyte algae, acritarchs) of ODP Hole 907A in the Iceland Sea, a sensitive area physically close to the growing Greenland ice-sheet, which experienced the effects of migrating ocean currents and sea-ice cover. -
Newsletter of Micropalaeontology the Micropalaeontological Society
Newsletter of Micropalaeontology August 2008 Number 78 Edited by I. J. Slipper The Micropalae ontological Society MICROFOSSILS AND EXTINCTION In this issue our President sets out his vision for TMS CONTENTS in these increasingly difficult times, including a new initiative to support micropalaeontological education. Society News 3 Details of that together with a fine program of talks will Group News 12 be on offer at our AGM on Wednesday 19th November Conferences ahead 20 - mark your diary now! The theme - as shown above is Microfossils and Extinction and six speakers will be ad- Society Officers 26w dressing this topic: see pp 8-11 for further details. Grant in Aid Reports 29 Conference reports 35 TMS continues to support student members with Archive highlights 39 Grants-in-Aid; on pages 12-13 and 29-34 you can read Announcements 40 how they are benefiting from these grants. Obituaries 41 Copy date for next issue 1st December 2008 Diary 43 Registered Charity No. 284013 www.tmsoc.org ISSN 0140-6730 The Paly Parlour The one-stop shop for all your bio & chemostratigraphic laboratory services! Dr Rae Jones 15 years experience, references available State-of-the-art local authority backed lab Also Hotshots, Micro, Nanno, Kerogen, Vitrinite, etc. For barren strata we can offer additional chemostrat processing, analysis and interpretation Unit F4 Britannia Enterprise Centre Pengam Rd, Blackwood, Caerphilly, NP12 3SP Mobile 07841 750 945, Fax/Ansa 01443 862 331 Email [email protected] Let your samples unbind in our hot spas Enjoy a break with -
Cryptoclidid Plesiosaurs (Sauropterygia, Plesiosauria) from the Upper Jurassic of the Atacama Desert
Journal of Vertebrate Paleontology ISSN: (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/ujvp20 Cryptoclidid plesiosaurs (Sauropterygia, Plesiosauria) from the Upper Jurassic of the Atacama Desert Rodrigo A. Otero , Jhonatan Alarcón-Muñoz , Sergio Soto-Acuña , Jennyfer Rojas , Osvaldo Rojas & Héctor Ortíz To cite this article: Rodrigo A. Otero , Jhonatan Alarcón-Muñoz , Sergio Soto-Acuña , Jennyfer Rojas , Osvaldo Rojas & Héctor Ortíz (2020): Cryptoclidid plesiosaurs (Sauropterygia, Plesiosauria) from the Upper Jurassic of the Atacama Desert, Journal of Vertebrate Paleontology, DOI: 10.1080/02724634.2020.1764573 To link to this article: https://doi.org/10.1080/02724634.2020.1764573 View supplementary material Published online: 17 Jul 2020. Submit your article to this journal Article views: 153 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=ujvp20 Journal of Vertebrate Paleontology e1764573 (14 pages) © by the Society of Vertebrate Paleontology DOI: 10.1080/02724634.2020.1764573 ARTICLE CRYPTOCLIDID PLESIOSAURS (SAUROPTERYGIA, PLESIOSAURIA) FROM THE UPPER JURASSIC OF THE ATACAMA DESERT RODRIGO A. OTERO,*,1,2,3 JHONATAN ALARCÓN-MUÑOZ,1 SERGIO SOTO-ACUÑA,1 JENNYFER ROJAS,3 OSVALDO ROJAS,3 and HÉCTOR ORTÍZ4 1Red Paleontológica Universidad de Chile, Laboratorio de Ontogenia y Filogenia, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Santiago, Chile, [email protected]; 2Consultora Paleosuchus Ltda., Huelén 165, Oficina C, Providencia, Santiago, Chile; 3Museo de Historia Natural y Cultural del Desierto de Atacama. Interior Parque El Loa s/n, Calama, Región de Antofagasta, Chile; 4Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario, Concepción, Región del Bío Bío, Chile ABSTRACT—This study presents the first plesiosaurs recovered from the Jurassic of the Atacama Desert that are informative at the genus level. -
Estimating the Evolutionary Rates in Mosasauroids and Plesiosaurs: Discussion of Niche Occupation in Late Cretaceous Seas
Estimating the evolutionary rates in mosasauroids and plesiosaurs: discussion of niche occupation in Late Cretaceous seas Daniel Madzia1 and Andrea Cau2 1 Department of Evolutionary Paleobiology, Institute of Paleobiology, Polish Academy of Sciences, Warsaw, Poland 2 Independent, Parma, Italy ABSTRACT Observations of temporal overlap of niche occupation among Late Cretaceous marine amniotes suggest that the rise and diversification of mosasauroid squamates might have been influenced by competition with or disappearance of some plesiosaur taxa. We discuss that hypothesis through comparisons of the rates of morphological evolution of mosasauroids throughout their evolutionary history with those inferred for contemporary plesiosaur clades. We used expanded versions of two species- level phylogenetic datasets of both these groups, updated them with stratigraphic information, and analyzed using the Bayesian inference to estimate the rates of divergence for each clade. The oscillations in evolutionary rates of the mosasauroid and plesiosaur lineages that overlapped in time and space were then used as a baseline for discussion and comparisons of traits that can affect the shape of the niche structures of aquatic amniotes, such as tooth morphologies, body size, swimming abilities, metabolism, and reproduction. Only two groups of plesiosaurs are considered to be possible niche competitors of mosasauroids: the brachauchenine pliosaurids and the polycotylid leptocleidians. However, direct evidence for interactions between mosasauroids and plesiosaurs is scarce and limited only to large mosasauroids as the Submitted 31 July 2019 predators/scavengers and polycotylids as their prey. The first mosasauroids differed Accepted 18 March 2020 from contemporary plesiosaurs in certain aspects of all discussed traits and no evidence Published 13 April 2020 suggests that early representatives of Mosasauroidea diversified after competitions with Corresponding author plesiosaurs. -
A Revision of the Classification of the Plesiosauria with a Synopsis of the Stratigraphical and Geographical Distribution Of
LUNDS UNIVERSITETS ARSSKRIFT. N. F. Avd. 2. Bd 59. Nr l. KUNGL. FYSIOGRAFISKA SÅLLSKAPETS HANDLINGAR, N. F. Bd 74. Nr 1. A REVISION OF THE CLASSIFICATION OF THE PLESIOSAURIA WITH A SYNOPSIS OF THE STRATIGRAPHICAL AND GEOGRAPHICAL DISTRIBUTION OF THE GROUP BY PER OVE PERSSON LUND C. W. K. GLEER UP Read before the Royal Physiographic Society, February 13, 1963. LUND HÅKAN OHLSSONS BOKTRYCKERI l 9 6 3 l. Introduction The sub-order Plesiosauria is one of the best known of the Mesozoic Reptile groups, but, as emphasized by KuHN (1961, p. 75) and other authors, its classification is still not satisfactory, and needs a thorough revision. The present paper is an attempt at such a revision, and includes also a tabular synopsis of the stratigraphical and geo graphical distribution of the group. Some of the species are discussed in the text (pp. 17-22). The synopsis is completed with seven maps (figs. 2-8, pp. 10-16), a selective synonym list (pp. 41-42), and a list of rejected species (pp. 42-43). Some forms which have been erroneously referred to the Plesiosauria are also briefly mentioned ("Non-Plesiosaurians", p. 43). - The numerals in braekets after the generic and specific names in the text refer to the tabular synopsis, in which the different forms are numbered in successional order. The author has exaroined all material available from Sweden, Australia and Spitzbergen (PERSSON 1954, 1959, 1960, 1962, 1962a); the major part of the material from the British Isles, France, Belgium and Luxembourg; some of the German spec imens; certain specimens from New Zealand, now in the British Museum (see LYDEK KER 1889, pp. -
Discussion Acta Palaeontologica Polonica 63 (1): 105– 110, 2018
Discussion Acta Palaeontologica Polonica 63 (1): 105– 110, 2018 Reply to Comment on “Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris” with the formal description of Stanleycaris STEPHEN PATES, ALLISON C. DALEY, and JAVIER ORTEGA-HERNÁNDEZ As part of a comprehensive examination of all radiodontans extend beyond the fossil margins into the rock matrix, demon- from Cambrian localities in the USA, Pates et al. (2017a, b) strating that they are not part of the fossil specimen. and Pates and Daley (2017) revised the taxonomic affinities of several described specimens. This included the reinter- Antenniform frontal appendage.—There are no features that distinguish the structure regarded by Gámez Vintaned et al. pretation of two putative lobopodians, one from the Wheeler (2011) as an antenniform limb, and the interpretation of this Formation (Utah, USA) and one from the Valdemiedes For- feature as a small burrow is more compelling as it extends into mation (Spain), as frontal appendages of the radiodontan the surrounding matrix. Structures identified as “pores” are like- genera Stanleycaris and Caryosyntrips respectively. In their ly plucked mineral grains approximately aligned in this region, comment, Gámez Vintaned and Zhuravlev (2018) disagree and other unaligned voids can be seen elsewhere in the SEM with these conclusions and raise three topics for discussion: images (Gámez Vintaned et al. 2011: fig. 12.5h, k). (i) anatomical features they suggest support a lobopodian affinity for “Mureropodia”; (ii) the identity of Caryosyntrips Proboscis with retractor-protractor muscle system.—The as a radiodontan, and the assignment of certain specimens to presence of a fleshy proboscis among lobopodians has only been this genus; and (iii) the nomenclatural status of Stanleycaris reliably documented in the Chengjiang Onychodictyon ferox (Ou hirpex as an invalid taxon. -
Abelisaurus Comahuensis 321 Acanthodiscus Sp. 60, 64
Index Page numbers in italic denote figure. Page numbers in bold denote tables. Abelisaurus comahuensis 321 structure 45-50 Acanthodiscus sp. 60, 64 Andean Fold and Thrust Belt 37-53 Acantholissonia gerthi 61 tectonic evolution 50-53 aeolian facies tectonic framework 39 Huitrin Formation 145, 151-152, 157 Andes, Neuqu6n 2, 3, 5, 6 Troncoso Member 163-164, 167, 168 morphostructural units 38 aeolian systems, flooded 168, 169, 170, 172, stratigraphy 40 174-182 tectonic evolution, 15-32, 37-39, 51 Aeolosaurus 318 interaction with Neuqu6n Basin 29-30 Aetostreon 200, 305 Andes, topography 37 Afropollis 76 Andesaurus delgadoi 318, 320 Agrio Fold and Thrust Belt 3, 16, 18, 29, 30 andesite 21, 23, 26, 42, 44 development 41 anoxia see dysoxia-anoxia stratigraphy 39-40, 40, 42 Aphrodina 199 structure 39, 42-44, 47 Aphrodina quintucoensis 302 uplift Late Cretaceous 43-44 Aptea notialis 75 Agrio Formation Araucariacites australis 74, 75, 76 ammonite biostratigraphy 58, 61, 63, 65, 66, Araucarioxylon 95,273-276 67 arc morphostructural units 38 bedding cycles 232, 234-247 Arenicolites 193, 196 calcareous nannofossil biostratigraphy 68, 71, Argentiniceras noduliferum 62 72 biozone 58, 61 highstand systems tract 154 Asteriacites 90, 91,270 lithofacies 295,296, 297, 298-302 Asterosoma 86 92 marine facies 142-143, 144, 153 Auca Mahuida volcano 25, 30 organic facies 251-263 Aucasaurus garridoi 321 palaeoecology 310, 311,312 Auquilco evaporites 42 palaeoenvironment 309- 310, 311, Avil6 Member 141,253, 298 312-313 ammonites 66 palynomorph biostratigraphy 74, -
Onetouch 4.0 Scanned Documents
/ Chapter 2 THE FOSSIL RECORD OF BIRDS Storrs L. Olson Department of Vertebrate Zoology National Museum of Natural History Smithsonian Institution Washington, DC. I. Introduction 80 II. Archaeopteryx 85 III. Early Cretaceous Birds 87 IV. Hesperornithiformes 89 V. Ichthyornithiformes 91 VI. Other Mesozojc Birds 92 VII. Paleognathous Birds 96 A. The Problem of the Origins of Paleognathous Birds 96 B. The Fossil Record of Paleognathous Birds 104 VIII. The "Basal" Land Bird Assemblage 107 A. Opisthocomidae 109 B. Musophagidae 109 C. Cuculidae HO D. Falconidae HI E. Sagittariidae 112 F. Accipitridae 112 G. Pandionidae 114 H. Galliformes 114 1. Family Incertae Sedis Turnicidae 119 J. Columbiformes 119 K. Psittaciforines 120 L. Family Incertae Sedis Zygodactylidae 121 IX. The "Higher" Land Bird Assemblage 122 A. Coliiformes 124 B. Coraciiformes (Including Trogonidae and Galbulae) 124 C. Strigiformes 129 D. Caprimulgiformes 132 E. Apodiformes 134 F. Family Incertae Sedis Trochilidae 135 G. Order Incertae Sedis Bucerotiformes (Including Upupae) 136 H. Piciformes 138 I. Passeriformes 139 X. The Water Bird Assemblage 141 A. Gruiformes 142 B. Family Incertae Sedis Ardeidae 165 79 Avian Biology, Vol. Vlll ISBN 0-12-249408-3 80 STORES L. OLSON C. Family Incertae Sedis Podicipedidae 168 D. Charadriiformes 169 E. Anseriformes 186 F. Ciconiiformes 188 G. Pelecaniformes 192 H. Procellariiformes 208 I. Gaviiformes 212 J. Sphenisciformes 217 XI. Conclusion 217 References 218 I. Introduction Avian paleontology has long been a poor stepsister to its mammalian counterpart, a fact that may be attributed in some measure to an insufRcien- cy of qualified workers and to the absence in birds of heterodont teeth, on which the greater proportion of the fossil record of mammals is founded. -
Isabel Clifton Cookson
1 The first Australian palynologist: Isabel Clifton Cookson 2 (1893–1973) and her scientific work 3 JAMES B. RIDING AND MARY E. DETTMANN 4 5 RIDING, J.B. & DETTMANN, M.E., The first Australian palynologist: Isabel Clifton 6 Cookson (1893–1973) and her scientific work. Alcheringa. 7 8 Isabel Clifton Cookson (1893–1973) of Melbourne, Australia, was one of that country’s 9 first professional woman scientists. She is remembered as one of the most eminent 10 palaeontologists of the twentieth century and had a distinguished research career of 58 11 years, authoring or co-authoring 93 scientific publications. Isabel worked with great 12 distinction on modern and fossil plants, and pioneered palynology in Australia. She was a 13 consumate taxonomist and described, or jointly described, a prodigious total of 110 14 genera, 557 species and 32 subspecific taxa of palynomorphs and plants. Cookson was a 15 trained biologist, and initially worked as a botanist during the 1920s. At the same time she 16 became interested in fossil plants and then, Mesozoic–Cenozoic terrestrial (1940s–1950s) 17 and aquatic (1950s–1970s) palynomorphs. Cookson’s research into the late Silurian–Early 18 Devonian plants of Australia and Europe, particularly the Baragwanathia flora, between 19 the 1920s and the 1940s was highly influential in the field of early plant evolution. The 20 fossil plant genus Cooksonia was named for Isabel in 1937 by her principal mentor in 21 palaeobotany, Professor William H. Lang. From the 1940s Cookson focussed on Cenozoic 1 22 floras and, with her students, elucidated floral affinities by comparative analyses of 23 micromorphology, anatomy and in situ pollen/spores between fossil and extant taxa.