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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. -
Upper Triassic) of Guizhou, South China
Research Advances A New Discovery of Colobodus Agassiz, 1844 (Colobodontidae) from the Carnian (Upper Triassic) of Guizhou, South China LI Ji1,*, LUO Yongming2, WANG Yue1, XU Guangfu1, MA Zhiheng1,3 1 College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China 2 Geological Survey of Guizhou, Guiyang 550004, China 3.Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China Corresponding author E-mail: [email protected] Objective Palaeoichthyology has been identified a research hotspot since abundant Triassic ichthyolite was discovered in Monte San Giorgio and South China. Critical review of the Colobodontidae reveals that this family has important research value. Furthermore, the family Perleididae Brough, 1931 and the probably paraphyletic ‘Perleidus group’ Gardiner & Schaeffer, 1989 have been implicitly regarded a synonym of the unsatisfactorily defined family Colobodontidae. Until 2002, Colobodontidae had been universally accepted as a significant taxon among all Triassic ichthyolite. However, the most colobodontids are probably confined to the Anisian and Ladinian in the Western Tethys. A well-preserved colobodontid discovered in Guizhou, South China, throws new light on its distribution and stratigraphic range. Methods A specimen was collected at the Wusha village of Xingyi City, Guizhou Province, South China and is preserved in the Geological Museum of Guizhou Province. The repair work was completed in a physical way in the laboratory of the Department of Geology, Guizhou University. Photographing the specimen was done by a 3D Microscope VHX-100k and drawings were made with reference to the digital photographs. Results This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. -
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. -
From the Middle Triassic of Southern China
Bollettino della Società Paleontologica Italiana, 50 (2), 2011, 75-83. Modena, 31 ottobre 201175 A new species of the genus Perleidus (Actinopterygii: Perleidiformes) from the Middle Triassic of Southern China Cristina LOMBARDO, Zuo-Yu SUN, Andrea TINTORI, Da-Yong JIANG & Wei-Cheng HAO C. Lombardo, Dipartimento di Scienze della Terra “A. Desio”, Università degli Studi di Milano, I-20113, Milano, Italy; [email protected] Z.-Y. Sun, Department of Geology and Geological Museum, Peking University, Beijing 100871, People’s Republic of China; [email protected] A. Tintori, Dipartimento di Scienze della Terra “A. Desio”, Università degli Studi di Milano, I-20113, Milano, Italy; [email protected] D.-Y. Jiang, Department of Geology and Geological Museum, Peking University, Beijing 100871, People’s Republic of China; [email protected] W.-C. Hao, Department of Geology and Geological Museum, Peking University, Beijing 100871, People’s Republic of China; [email protected] KEY WORDS - Actinopterygians, Perleidiformes, Perleidus sinensis n. sp., Middle Triassic, Southern China, Tethys. ABSTRACT - Perleidus sinensis n. sp., a new species of “Subholostean” fossil fish of the order Perleidiformes is described herein on the basis of a single, well-preserved specimen collected from the Upper Member of the Guanling Formation (Pelsonian, Middle Anisian, Middle Triassic) outcropping near Luoping (Yunnan Province) in South China. The vertebrate assemblage yielded by these levels is proving to be of importance with regard to the marine Triassic -
Re-Evaluation of Pachycormid Fishes from the Late Jurassic of Southwestern Germany
Editors' choice Re-evaluation of pachycormid fishes from the Late Jurassic of Southwestern Germany ERIN E. MAXWELL, PAUL H. LAMBERS, ADRIANA LÓPEZ-ARBARELLO, and GÜNTER SCHWEIGERT Maxwell, E.E., Lambers, P.H., López-Arbarello, A., and Schweigert G. 2020. Re-evaluation of pachycormid fishes from the Late Jurassic of Southwestern Germany. Acta Palaeontologica Polonica 65 (3): 429–453. Pachycormidae is an extinct group of Mesozoic fishes that exhibits extensive body size and shape disparity. The Late Jurassic record of the group is dominated by fossils from the lithographic limestone of Bavaria, Germany that, although complete and articulated, are not well characterized anatomically. In addition, stratigraphic and geographical provenance are often only approximately known, making these taxa difficult to place in a global biogeographical context. In contrast, the late Kimmeridgian Nusplingen Plattenkalk of Baden-Württemberg is a well-constrained locality yielding hundreds of exceptionally preserved and prepared vertebrate fossils. Pachycormid fishes are rare, but these finds have the potential to broaden our understanding of anatomical variation within this group, as well as provide new information regarding the trophic complexity of the Nusplingen lagoonal ecosystem. Here, we review the fossil record of Pachycormidae from Nusplingen, including one fragmentary and two relatively complete skulls, a largely complete fish, and a fragment of a caudal fin. These finds can be referred to three taxa: Orthocormus sp., Hypsocormus posterodorsalis sp. nov., and Simocormus macrolepidotus gen. et sp. nov. The latter taxon was erected to replace “Hypsocormus” macrodon, here considered to be a nomen dubium. Hypsocormus posterodorsalis is known only from Nusplingen, and is characterized by teeth lacking apicobasal ridging at the bases, a dorsal fin positioned opposite the anterior edge of the anal fin, and a hypural plate consisting of a fused parhypural and hypurals. -
Quaderns De Natura PEIXOS ACTINOPTERIGIS DEL
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Revistes Catalanes amb Accés Obert Quaderns de Vilaniu, 35: 55-87 (1999) ^^ Quaderns de Natura PEIXOS ACTINOPTERIGIS DEL TRIÀSIC MITJÀ DE LA PEDRA D'ALCOVER * per Joan Cartanyà Martí Paraules clau: actinopterigis, sistemàtica, Ladinià superior. Unitat d'Alcover. Resum: Els fòssils de les dolmicrites d'Alcover es coneixen des del 1963. La Unitat de les Dolomies Taulejades d'Alcover (pedra d'Alcover) té una potència de 70-80 m, i es troba en depressions interesculls. Estratigràficament es situa al Ladinià superior (Triàsic mitjà). Durant la deposició de la Unitat d'Alcover es van desenvolupar condicions anòxiques i hipersalines d'una forma periòdica. Les fàcies més abundants són constituïdes per capes de dolmicrites massives (d'entre 1 i 10 cm de gruix) i dolmicrites laminades molt fines. Localment apareixen capes ondulades amb plegaments i cabussaments. L'associació fòssil és al·lòctona i composta per grups florístics i faunístics com: plantes terrestres, celenterats, braquiòpodes, mol·luscs, artròpodes, equinoderms, peixos i rèptils, però la reputació d'aquests jaciments rau en el fet que els fòssils s'han conservat en dolmicrites i en la seva diversitat ictiològica. La fauna de peixos d'Alcover es caracteritza bàsicament per individus de talla mitjana. Els Saurichtiformes i els Perleidiformes són els ordres més comuns. Mitjançant aquest estudi els actinopterigis es classifiquen bàsicament a nivell genèric, i en alguns casos només a nivell de família. D'aquesta manera, i fins avui, han sigut prèviament indentificats 15 gèneres pertanyents a 11 famílies i nou ordres: Plycholepis, IBoreosomiis, Sauriclitliys, Colobodiis, Perleidus, IClenognaliclilltys, Peltoperleidiis, ICleithrolepididae indet., Pelíopleurus, Peripeltopleurus, IPlatysiagiim, Liiganoia, Eosemionotiis, Archaeosemionotus, Allolepidotiis, Eoeugnathiis, ICaturus, lOphiopsis, IPholidophoridae indet. -
LOCOMOTION ENERGETICS of LEEDSICHTHYS PROBLEMATICUS (ACTINOPTERYGII, PACHYCORMIFORMES) by HUMBERTO G
[Palaeontology, Vol. 61, Part 5, 2018, pp. 775–783] ASSESSING METABOLIC CONSTRAINTS ON THE MAXIMUM BODY SIZE OF ACTINOPTERYGIANS: LOCOMOTION ENERGETICS OF LEEDSICHTHYS PROBLEMATICUS (ACTINOPTERYGII, PACHYCORMIFORMES) by HUMBERTO G. FERRON 1,* ,BORJAHOLGADO2,* , JEFFREY J. LISTON3,4,5,6,CARLOSMARTINEZ-PEREZ 1,6 and HECTOR BOTELLA1 1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de Valencia, C/Catedratic Jose Beltran Martınez 2, 46980, Paterna, Valencia Spain; [email protected], [email protected], [email protected] 2Laboratory of Systematics & Taphonomy of Fossil Vertebrates, Departamento de Geologia e Paleontologia, Museu Nacional/Universidade Federal do Riode Janeiro (UFRJ), Quinta da Boa Vista, s/n, S~ao Cristov ~ao, 20940-040, Rio de Janeiro, RJ Brazil; [email protected] 3Bayerische Staatssammlung fur€ Pal€aontologie und Geologie, Richard-Wagner-Straße 10, 80333, Munchen,€ Germany; [email protected], [email protected] 4National Museums Scotland, Chambers Street, Edinburgh, EH1 1JF, UK; [email protected] 5Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK; [email protected] 6School of Earth Sciences, University of Bristol, Bristol, BS8 1TQ, UK; [email protected], [email protected] *Corresponding authors Typescript received 21 October 2017; accepted in revised form 5 April 2018 Abstract: Maximum sizes attained by living actinoptery- weighing up to 44.9 tonnes would have been energetically gians are much smaller than those reached by chon- viable and suggests that similar body sizes could also be possi- drichthyans. Several factors, including the high metabolic ble among living taxa, discarding metabolic factors as likely requirements of bony fishes, have been proposed as possible body size constraints in actinopterygians. -
Body-Shape Diversity in Triassic–Early Cretaceous Neopterygian fishes: Sustained Holostean Disparity and Predominantly Gradual Increases in Teleost Phenotypic Variety
Body-shape diversity in Triassic–Early Cretaceous neopterygian fishes: sustained holostean disparity and predominantly gradual increases in teleost phenotypic variety John T. Clarke and Matt Friedman Comprising Holostei and Teleostei, the ~32,000 species of neopterygian fishes are anatomically disparate and represent the dominant group of aquatic vertebrates today. However, the pattern by which teleosts rose to represent almost all of this diversity, while their holostean sister-group dwindled to eight extant species and two broad morphologies, is poorly constrained. A geometric morphometric approach was taken to generate a morphospace from more than 400 fossil taxa, representing almost all articulated neopterygian taxa known from the first 150 million years— roughly 60%—of their history (Triassic‒Early Cretaceous). Patterns of morphospace occupancy and disparity are examined to: (1) assess evidence for a phenotypically “dominant” holostean phase; (2) evaluate whether expansions in teleost phenotypic variety are predominantly abrupt or gradual, including assessment of whether early apomorphy-defined teleosts are as morphologically conservative as typically assumed; and (3) compare diversification in crown and stem teleosts. The systematic affinities of dapediiforms and pycnodontiforms, two extinct neopterygian clades of uncertain phylogenetic placement, significantly impact patterns of morphological diversification. For instance, alternative placements dictate whether or not holosteans possessed statistically higher disparity than teleosts in the Late Triassic and Jurassic. Despite this ambiguity, all scenarios agree that holosteans do not exhibit a decline in disparity during the Early Triassic‒Early Cretaceous interval, but instead maintain their Toarcian‒Callovian variety until the end of the Early Cretaceous without substantial further expansions. After a conservative Induan‒Carnian phase, teleosts colonize (and persistently occupy) novel regions of morphospace in a predominantly gradual manner until the Hauterivian, after which expansions are rare. -
Introduction and Bibliography
Downloaded from http://sp.lyellcollection.org/ by guest on October 3, 2021 Introduction and bibliography MIKE SMITH*, ZERINA JOHANSON, PAUL M. BARRETT & M. RICHTER Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK *Corresponding author (e-mail: [email protected]) Arthur Smith Woodward (1864–1944) was ac- Wegener was proposing his theory of continental knowledged as the world’s foremost authority on drift. It would be almost half a century before fossil fishes during his lifetime and made impor- his theory gained widespread acceptance. Hallam tant contributions to the entire field of vertebrate (1983, p. 135) wrote in Great Geological Contro- palaeontology. He was a dedicated public servant, versies that ‘The American palaeontologist G. G. spending his whole career at the British Museum Simpson noted in 1943 the near unanimity of (Natural History) (now the Natural History Museum, palaeontologists against Wegener’s ideas’. Smith NHM) in London. He served on the council and as Woodward certainly fell into this camp but was president of many of the important scientific socie- more inclined to note that no certainty could yet be ties and was elected a Fellow of the Royal Society attached to the palaeontological evidence (Wood- in 1901. He was knighted on retirement from the ward 1935). Scientific theories that we accept today Museum in 1924. were still controversial and intensely debated while Smith Woodward was born on 23 May 1864 in Smith Woodward was alive. Macclesfield, an industrial town in the north Mid- A book that celebrates the life and scientific lands of England. -
Giant Mesozoic Coelacanths (Osteichthyes, Actinistia) Reveal High Body Size Disparity Decoupled from Taxic Diversity
Giant Mesozoic Coelacanths (Osteichthyes, Actinistia) Reveal High Body Size Disparity Decoupled From Taxic Diversity Lionel Cavin ( [email protected] ) Natural History Museum of Geneva André Piuz Natural History Museum of Geneva Christophe Ferrante Natural History Museum of Geneva Guillaume Guinot Institut des Sciences de l'Evolution de Montpellier Research Article Keywords: morphological evolution, taxic diversication, Genomic and physiological characteristics Posted Date: March 2nd, 2021 DOI: https://doi.org/10.21203/rs.3.rs-245480/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License 1 2 Giant Mesozoic coelacanths (Osteichthyes, Actinistia) reveal high 3 body size disparity decoupled from taxic diversity 4 5 Lionel Cavin1*, André Piuz1, Christophe Ferrante1,2 & Guillaume Guinot3 6 7 8 1 Department of Geology and Palaeontology, Natural History Museum of Geneva, Geneva, 9 Switzerland 10 2 Department of Earth Sciences, University of Geneva, Rue des Maraîchais 13, 1205 Genève, 11 Switzerland 12 3 Institut des Sciences de l’Evolution de Montpellier (Université de Montpellier, CNRS, IRD, 13 EPHE), Montpellier, France 14 15 * Corresponding author 16 Email: [email protected] 17 1 18 Abstract 19 20 The positive correlation between speciation rates and morphological evolution expressed by 21 body size is a macroevolutionary trait of vertebrates. Although taxic diversification and 22 morphological evolution are slow in coelacanths, their fossil record indicates that large and 23 small species coexisted, which calls into question the link between morphological and body 24 size disparities. Here, we describe and reassess fossils of giant coelacanths. Two genera 25 reached up to 5 meters long, placing them among the ten largest bony fish that ever lived. -
A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2021 A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes Romano, Carlo Abstract: About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are known from the Early Triassic. They appear during a time when global fish faunas consisted of mostly cosmopolitan taxa, and contemporary bony fishes belonged mainly to non-neopterygian (“pale- opterygian”) lineages. In the Middle Triassic (Pelsonian substage and later), less than 10 myrs (million years) after the Permian-Triassic boundary mass extinction event (PTBME), neopterygians were already species-rich and trophically diverse, and bony fish faunas were more regionally differentiated compared to the Early Triassic. Still little is known about the early evolution of neopterygians leading up to this first diversity peak. A major factor limiting our understanding of this “Triassic revolution” isaninter- val marked by a very poor fossil record, overlapping with the Spathian (late Olenekian, Early Triassic), Aegean (Early Anisian, Middle Triassic), and Bithynian (early Middle Anisian) substages. Here, I review the fossil record of Early and Middle Triassic marine bony fishes (Actinistia and Actinopterygii) at the substage-level in order to evaluate the impact of this hiatus–named herein the Spathian–Bithynian gap (SBG)–on our understanding of their diversification after the largest mass extinction event of the past. I propose three hypotheses: 1) the SSBE hypothesis, suggesting that most of the Middle Triassic diver- sity appeared in the aftermath of the Smithian-Spathian boundary extinction (SSBE; 2 myrs after the PTBME), 2) the Pelsonian explosion hypothesis, which states that most of the Middle Triassic ichthyo- diversity is the result of a radiation event in the Pelsonian, and 3) the gradual replacement hypothesis, i.e. -
Transfer of Type Specimens of Fossil Fishes to the Bavarian State Collection for Palaeontology and Geology with Some Notes on Their History of Research
53 he A Rei Series A/ Zitteliana An International Journal of Palaeontology and Geobiology Series A /Reihe A Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Geologie 53 An International Journal of Palaeontology and Geobiology München 2013 Zitteliana Zitteliana A 53 (2013) 169 Transfer of type specimens of fossil fishes to the Bavarian State Collection for Palaeontology and Geology with some notes on their history of research Markus Moser Zitteliana A 53, 169 – 177 München, 31.12.2013 Staatliche Naturwissenschaftliche Sammlungen Bayerns, Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Str. 10, D-80333 Munich, Germany Manuscript received 13.12.2013; revision E-mail: [email protected] accepted 31.12.2013 ISSN 1612 - 412X Abstract Recent acquisitions to the Bavarian State Collection for Palaeontology and Geology comprise part of the palaeontological collections of the former Heimatmuseum Bad Windsheim and the former Institute of Palaeontology and Geology at the University of Würzburg. Among the specimens are the holotypes of three fishes, Aphelolepis delpi Heller, 1953, Crenilepis sandbergeri Dames, 1888 and Coelacanthus giganteus Winkler, 1880. The type specimen of Crenilepis sandbergeri erroneously has been reported as being lost, while Coelacanthus giganteus has been regarded even as a nomen nudum. Crenilepis Dames is shown to be nomenclaturally valid, while „Crenilepis Reis, 1887“ is not available, „Crenolepis Carus 1888“ is a misspelling, and „Crenilepoides Strand, 1929“ is an unjustified replacement name. Key words: type specimens, Aphelolepis delpi, Crenilepis sandbergeri, Coelacanthus giganteus, Ceratodus, Middle Triassic Zusammenfassung Neuere Zuwächse der Bayerischen Staatssammlung für Paläontologie und Geologie umfassen Teile der paläontologischen Samm- lungen des früheren Heimatmuseums Bad Windsheim und des früheren Instituts für Paläontologie und Geologie der Universität Würzburg.