Introduction and Bibliography
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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. -
Annotated Checklist of Fossil Fishes from the Smoky Hill Chalk of the Niobrara Chalk (Upper Cretaceous) in Kansas
Lucas, S. G. and Sullivan, R.M., eds., 2006, Late Cretaceous vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35. 193 ANNOTATED CHECKLIST OF FOSSIL FISHES FROM THE SMOKY HILL CHALK OF THE NIOBRARA CHALK (UPPER CRETACEOUS) IN KANSAS KENSHU SHIMADA1 AND CHRISTOPHER FIELITZ2 1Environmental Science Program and Department of Biological Sciences, DePaul University,2325 North Clifton Avenue, Chicago, Illinois 60614; and Sternberg Museum of Natural History, Fort Hays State University, 3000 Sternberg Drive, Hays, Kansas 67601;2Department of Biology, Emory & Henry College, P.O. Box 947, Emory, Virginia 24327 Abstract—The Smoky Hill Chalk Member of the Niobrara Chalk is an Upper Cretaceous marine deposit found in Kansas and adjacent states in North America. The rock, which was formed under the Western Interior Sea, has a long history of yielding spectacular fossil marine vertebrates, including fishes. Here, we present an annotated taxo- nomic list of fossil fishes (= non-tetrapod vertebrates) described from the Smoky Hill Chalk based on published records. Our study shows that there are a total of 643 referable paleoichthyological specimens from the Smoky Hill Chalk documented in literature of which 133 belong to chondrichthyans and 510 to osteichthyans. These 643 specimens support the occurrence of a minimum of 70 species, comprising at least 16 chondrichthyans and 54 osteichthyans. Of these 70 species, 44 are represented by type specimens from the Smoky Hill Chalk. However, it must be noted that the fossil record of Niobrara fishes shows evidence of preservation, collecting, and research biases, and that the paleofauna is a time-averaged assemblage over five million years of chalk deposition. -
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. -
Stable Isotope Study of a New Chondrichthyan Fauna (Kimmeridgian, Porrentruy, Swiss Jura): an Unusual Freshwater-Influenced Isot
1 Stable isotope study of a new chondrichthyan fauna 2 (Kimmeridgian, Porrentruy, Swiss Jura): an unusual 3 freshwater-influenced isotopic composition for the 4 hybodont shark Asteracanthus 5 6 L. Leuzinger1,2,*, L. Kocsis3,4, J.-P. Billon-Bruyat2, S. Spezzaferri1, T. 7 Vennemann3 8 [1]{Département des Géosciences, Université de Fribourg, Chemin du Musée 6, 1700 9 Fribourg, Switzerland} 10 [2]{Section d’archéologie et paléontologie, Office de la culture, République et Canton du 11 Jura, Hôtel des Halles, 2900 Porrentruy, Switzerland} 12 [3]{Institut des Dynamiques de la Surface Terrestre, Université de Lausanne, Quartier UNIL- 13 Mouline, Bâtiment Géopolis, 1015 Lausanne, Switzerland} 14 [4]{Universiti Brunei Darussalam, Faculty of Science, Geology Group, Jalan Tungku Link, 15 BE 1410, Brunei Darussalam} 16 [*]{now at: CRILAR, 5301 Anillaco, La Rioja, Argentina} 17 Correspondence to: L. Leuzinger ([email protected]) 18 19 Abstract 20 Chondrichthyan teeth (sharks, rays and chimaeras) are mineralised in isotopic equilibrium 21 with the surrounding water, and parameters such as water temperature and salinity can be 18 22 inferred from the oxygen isotopic composition (δ Op) of their bioapatite. We analysed a new 23 chondrichthyan assemblage, as well as teeth from bony fish (Pycnodontiformes). All 24 specimens are from Kimmeridgian coastal marine deposits of the Swiss Jura (vicinity of 25 Porrentruy, Ajoie district, NW Switzerland). While the overall faunal composition and the 26 isotopic composition of bony fish are generally consistent with marine conditions, unusually 18 27 low δ Op values were measured for the hybodont shark Asteracanthus. These values are also 28 lower compared to previously published data from older European Jurassic localities. -
35-51 New Data on Pleuropholis Decastroi (Teleostei, Pleuropholidae)
Geo-Eco-Trop., 2019, 43, 1 : 35-51 New data on Pleuropholis decastroi (Teleostei, Pleuropholidae), a “pholidophoriform” fish from the Lower Cretaceous of the Eurafrican Mesogea Nouvelles données sur Pleuropholis decastroi (Teleostei, Pleuropholidae), un poisson “pholidophoriforme” du Crétacé inférieur de la Mésogée eurafricaine Louis TAVERNE 1 & Luigi CAPASSO 2 Résumé: Le crâne et le corps de Pleuropholis decastroi, un poisson fossile de l’Albien (Crétacé inférieur) du sud de l’Italie, sont redécrits en détails. P. decastroi diffère des autres espèces du genre par ses deux nasaux en contact médian et qui séparent complètement le dermethmoïde ( = rostral) des frontaux. Avec son maxillaire extrêmement élargi qui couvre la mâchoire inférieure et son supramaxillaire fortement réduit, P. decastroi semble plus nettement apparenté avec Pleuropholis cisnerosorum, du Jurassique supérieur du Mexique, qu’avec les autres espèces du genre. Par ses mâchoires raccourcies et ses nombreux os orbitaires, Pleuropholis apparaît également comme le genre le plus spécialisé de la famille. La position systématique des Pleuropholidae au sein du groupe des « pholidophoriformes » est discutée. Mots-clés: Pleuropholis decastroi, Albien, Italie du sud, Pleuropholis, Pleuropholidae, “Pholidophoriformes”, ostéologie, position systématique. Abstract: The skull and the body of Pleuropholis decastroi, a fossil fish from the marine Albian (Lower Cretaceous) of southern Italy, are re-described in details. P. decastroi differs from the other species of the genus by their two nasals that are in contact along the mid-line, completely separating the dermethmoid (= rostral) from the frontals. With its extremely broadened maxilla that covers the lower jaw and its strongly reduced supramaxilla, P. decastroi seems more closely related to Pleuropholis cisnerosorum, from the Upper Jurassic of Mexico, than to the other species of the genus. -
The Scales of Mesozoic Actinopterygians
Mesozoic Fishes – Systematics and Paleoecology, G. Arratia & G. Viohl (eds.): pp. 83-93, 6 figs. © 1996 by Verlag Dr. Friedrich Pfeil, München, Germany – ISBN 3-923871–90-2 The scales of Mesozoic actinopterygians Hans-Peter SCHULTZE Abstract Cycloid scales (elasmoid scales with circuli) are a unique character of teleosts above the level of Pholidophorus and Pholidophoroides. Cycloid scales have two layers. A bony layer, usually acellular, is superimposed on a basal plate composed of partially mineralized layers of plywoodlike laminated collagen fibres. The tissue of the basal layer is refered to here as elasmodin. Basal teleosts (sensu PATTERSON 1973) possess rhombic scales with a bony base overlain by ganoin (lepidosteoid ganoid scale). Amioid scales (elasmoid scales with longitudinally to radially arranged ridges or rods on the overlapped field) are found within halecomorphs. This scale type evolved more than once within primitive actinopterygians and other osteichthyan fishes. It may have even developed twice within halecomorphs, in Caturidae and Amiidae, from rhombic scales of lepidosteoid type. Some basal genera of halecomorphs show remains of a dentine layer between ganoin and bone that is characteristic of actinopterygians below the halecostome level. The Semionotidae placed at the base of the Halecostomi, exhibit scale histology transitional between the palaeoniscoid and lepidosteoid scale type. Introduction Actinopterygians, from primitive Coccolepididae to advanced teleosts, are represented in the Solnhofen lithographic limestone. These are fishes with rhombic and round scales. Ganoid scales of the lepidosteoid type are found in the following fishes: semionotid Lepidotes and Heterostrophus, macrosemiids Histionotus, Macrosemius, Notagogus and Propterus, ophiopsid Ophiopsis, caturids Furo and Brachyichthys, aspido- rhynchid Belonostomus, pleuropholid Pleuropholis, and pholidophorid Pholidophorus. -
Vertebrate Remains Are Relatively Well Known in Late Jurassic Deposits of Western Cuba. the Fossil Specimens That Have Been Coll
Paleontología Mexicana, 3 (65): 24-39 (versión impresa), 4: 24-39 (versión electrónica) Catalogue of late jurassiC VerteBrate (pisCes, reptilian) speCiMens froM western CuBa Manuel Iturralde-Vinent ¹, *, Yasmani Ceballos Izquierdo ² A BSTRACT Vertebrate remains are relatively well known in Late Jurassic deposits of western Cuba. The fossil specimens that have been collected so far are dispersed in museum collections around the world and some have been lost throughout the years. A reas- sessment of the fossil material stored in some of these museums’ collections has generated new data about the fossil-bearing lo- calities and greatly increased the number of formally identified specimens. The identified bone elements and taxa suggest a high vertebrate diversity dominated by actinopterygians and reptiles, including: long-necked plesiosaurs, pliosaurs, metriorhynchid crocodilians, pleurodiran turtles, ichthyosaurs, pterosaurs, and sauropod dinosaurs. This assemblage is commonly associated with unidentified remains of terrestrial plants and rare microor- ganisms, as well as numerous marine invertebrates such as am- monites, belemnites, pelecypods, brachiopods, and ostracods. This fossil assemblage is particularly valuable because it includes the most complete marine reptile record of a chronostratigraphic interval, which is poor in vertebrate remains elsewhere. In this contribution, the current status of the available vertebrate fossil specimens from the Late Jurassic of western Cuba is provided, along with a brief description of the fossil materials. Key words: Late Jurassic, Oxfordian, dinosaur, marine reptiles, fish, western Cuba. I NTRODUCTION Since the early 20th century, different groups of collectors have discovered 1 Retired curator, Museo a relatively rich and diverse vertebrate assemblage in the Late Jurassic stra- Nacional de Historia Natural, ta of western Cuba, which has been only partially investigated (Brown and Havana, Cuba. -
The Strawberry Bank Lagerstätte Reveals Insights Into Early Jurassic Lifematt Williams, Michael J
XXX10.1144/jgs2014-144M. Williams et al.Early Jurassic Strawberry Bank Lagerstätte 2015 Downloaded from http://jgs.lyellcollection.org/ by guest on September 27, 2021 2014-144review-articleReview focus10.1144/jgs2014-144The Strawberry Bank Lagerstätte reveals insights into Early Jurassic lifeMatt Williams, Michael J. Benton &, Andrew Ross Review focus Journal of the Geological Society Published Online First doi:10.1144/jgs2014-144 The Strawberry Bank Lagerstätte reveals insights into Early Jurassic life Matt Williams1, Michael J. Benton2* & Andrew Ross3 1 Bath Royal Literary and Scientific Institution, 16–18 Queen Square, Bath BA1 2HN, UK 2 School of Earth Sciences, University of Bristol, Bristol BS8 2BU, UK 3 National Museum of Scotland, Chambers Street, Edinburgh EH1 1JF, UK * Correspondence: [email protected] Abstract: The Strawberry Bank Lagerstätte provides a rich insight into Early Jurassic marine vertebrate life, revealing exquisite anatomical detail of marine reptiles and large pachycormid fishes thanks to exceptional preservation, and especially the uncrushed, 3D nature of the fossils. The site documents a fauna of Early Jurassic nektonic marine animals (five species of fishes, one species of marine crocodilian, two species of ichthyosaurs, cephalopods and crustaceans), but also over 20 spe- cies of insects. Unlike other fossil sites of similar age, the 3D preservation at Strawberry Bank provides unique evidence on palatal and braincase structures in the fishes and reptiles. The age of the site is important, documenting a marine ecosystem during recovery from the end-Triassic mass extinction, but also exactly coincident with the height of the Toarcian Oceanic Anoxic Event, a further time of turmoil in evolution. -
Geological Survey of Ohio
GEOLOGICAL SURVEY OF OHIO. VOL. I.—PART II. PALÆONTOLOGY. SECTION II. DESCRIPTIONS OF FOSSIL FISHES. BY J. S. NEWBERRY. Digital version copyrighted ©2012 by Don Chesnut. THE CLASSIFICATION AND GEOLOGICAL DISTRIBUTION OF OUR FOSSIL FISHES. So little is generally known in regard to American fossil fishes, that I have thought the notes which I now give upon some of them would be more interesting and intelligible if those into whose hands they will fall could have a more comprehensive view of this branch of palæontology than they afford. I shall therefore preface the descriptions which follow with a few words on the geological distribution of our Palæozoic fishes, and on the relations which they sustain to fossil forms found in other countries, and to living fishes. This seems the more necessary, as no summary of what is known of our fossil fishes has ever been given, and the literature of the subject is so scattered through scientific journals and the proceedings of learned societies, as to be practically inaccessible to most of those who will be readers of this report. I. THE ZOOLOGICAL RELATIONS OF OUR FOSSIL FISHES. To the common observer, the class of Fishes seems to be well defined and quite distin ct from all the other groups o f vertebrate animals; but the comparative anatomist finds in certain unusual and aberrant forms peculiarities of structure which link the Fishes to the Invertebrates below and Amphibians above, in such a way as to render it difficult, if not impossible, to draw the lines sharply between these great groups. -
(Chondrichthyes, Elasmobranchii) from the Middle Jurassic of SW Germany and NW Poland
Neoselachian remains (Chondrichthyes, Elasmobranchii) from the Middle Jurassic of SW Germany and NW Poland JÜRGEN KRIWET Kriwet, J. 2003. Neoselachian remains (Chondrichthyes, Elasmobranchii) from the Middle Jurassic of SW Germany and NW Poland. Acta Palaeontologica Polonica 48 (4): 583–594. New neoselachian remains from the Middle Jurassic of SW Germany and NW Poland are described. The locality of Weilen unter den Rinnen in SW Germany yielded only few orectolobiform teeth from the Aalenian representing at least one new genus and species, Folipistrix digitulus, which is assigned to the orectolobiforms and two additional orectolobi− form teeth of uncertain affinities. The tooth morphology of Folipistrix gen. nov. indicates a cutting dentition and suggests specialised feeding habits. Neoselachians from Bathonian and Callovian drill core samples from NW Poland produced numerous selachian remains. Most teeth are damaged and only the crown is preserved. Few identifiable teeth come from uppermost lower to lower middle Callovian samples. They include a new species, Synechodus prorogatus, and rare teeth attributed to Palaeobrachaelurus sp., Pseudospinax? sp., Protospinax cf. annectans Woodward, 1919, two additional but unidentifiable Protospinax spp. and Squalogaleus sp. Scyliorhinids are represented only by few isolated tooth crowns. No batoid remains have been recovered. The two assemblages contribute to the knowledge about early neoselachian distribution and diversity. Key words: Chondrichthyes, Neoselachii, Jurassic, Germany, Poland, taxonomy, diversity. Jürgen Kriwet [[email protected]], Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queen’s Road, Bristol BS8 1RJ, United Kingdom. Introduction Woodward 1889; Frass 1896; Thies 1992, 1993), Northern France (Duffin and Ward 1993), Luxembourg (Delsate Neoselachii is a well−defined monophyletic clade and repre− 1995), Belgium (Delsate and Thies 1995; Delsate and Gode− sents one of the most successful groups of selachians. -
Calabaria and the Phytogeny of Erycine Snakes
<nological Journal of the Linnean Socieb (1993), 107: 293-351. With 19 figures Calabaria and the phylogeny of erycine snakes ARNOLD G. KLUGE Museum of <oolog~ and Department of Biology, University of Michigan, Ann Arbor, Mr 48109 U.S.A. Receiued October 1991, revised manuscript accepted Mar I992 Two major subgroups of erycine snakes, designated Charina and Eyx, are delimited with a cladistic analysis of 75 morphological characters. The hypotheses of species relationships within the two clades are (reinhardtii (bottae, triuirgata) ) and (colubrinus, conicus, elegans, jayakari, muellen’, somalicus (miliaris (tataricus (iaculus, johnii)))),respectively. This pattern of grouping obtains without assuming multistate character additivity. At least 16 synapomorphies indicate that reinhardtii is an erycine and that it is the sister lineage of the (bottae, friuirgata) cladr. Calabaria and Lichanura are synonymized with Charina for reasons of taxonomic efficiency, and to emphasize the New-Old World geographic distribution of the three species in that assemblage. Further resolution of E’yx species relationships is required before Congylophis (type species conicus) can be recognized. ADDITIONAL KEY WORDS:--Biogeography - Cladistics - erycines - fossils - taxonomy CONI‘EN’I’S Introduction ................... 293 Erycine terminal taxa and nomenclature ............ 296 Fossils .................... 301 Methods and materials ................ 302 Eryrine phylogeny ................. 306 Character descriptions ............... 306 Other variation ................ -
Large-Bodied Suspension Feeders, Which Include the Most
Friedman, M., Shimada, K., Martin, L.D., Everhart, M.J., Liston, J.J., Maltese, A. and Triebold, M. (2010) 100-million-year dynasty of giant planktivorous bony fishes in the Mesozoic seas. Science, 327 (5968). pp. 990-993. ISSN 0036-8075 http://eprints.gla.ac.uk/55074/ Deposited on: 7 December 2011 Enlighten – Research publications by members of the University of Glasgow http://eprints.gla.ac.uk 100-million-year dynasty of giant suspension-feeding bony fishes in the Mesozoic seas Matt Friedman1, Kenshu Shimada2,3, Larry D. Martin4, Michael J. Everhart3, Jeff Liston5, Anthony Maltese6, Michael Triebold6 1Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX1 3PR, UK. 2Environmental Science Program and Department of Biological Sciences, DePaul University, 2325 North Clifton Avenue, Chicago, Illinois 60614, USA. 3Sternberg Museum of Natural History, Fort Hays State University, 3000 Sternberg Drive, Hays, Kansas 67601, USA. 4Natural History Museum and Biodiversity Research Center, University of Kansas, 1345 Jayhawk Boulevard, Lawrence, Kansas 66045, USA. 5Division of Ecology and Evolutionary Biology, Faculty of Biomedical and Life Sciences, University of Glasgow, University Avenue, Glasgow G12 8QQ, UK. 6Triebold Paleontology, Inc., and Rocky Mountain Dinosaur Resource Center, 201 South Fairview Street, Woodland Park, Colorado 80863, USA. Large-bodied suspension feeders (planktivores), which include the most massive animals to have ever lived, are conspicuously absent from Mesozoic marine environments. The only clear representatives of this trophic guild in the Mesozoic are an enigmatic and apparently short-lived (ca. 20 Ma) radiation of bony fishes assigned to †Pachycormidae, a stem teleost clade. Here we report several new discoveries of these giant fishes from Asia, Europe and North America, which not only deliver the first detailed anatomical information on this poorly understood group, but also extend its range deeper into the Jurassic and to the very end of the Cretaceous.