Biology:Paraisurus

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Short description: Extinct genus of sharks


Paraisurus
Temporal range: Aptian-Albian
Paraisurus macrorhiza2.jpg
Teeth of P. macrorhizus
Scientific classification
Kingdom:
Animalia
Phylum:
Class:
Chondrichthyes
Superorder:
Selachimorpha
Order:
Family:
Paraisuridae

Herman, 1979[1]
Genus:
Paraisurus
Type species
Paraisurus macrorhizus
(Pictet & Campiche, 1858)[2]
Other species
  • Paraisurus compressus
    Sokolov, 1978[3]
  • Paraisurus elegans
    Sokolov, 1978
  • Paraisurus lanceolatus
    Sokolov, 1978
Synonyms

Paraisurus is an extinct genus of mackerel sharks that lived during the Cretaceous. It contains four valid species, which have been found in Europe, Asia, North America, and Australia .[5] A fifth species, P. amudarjensis, is now considered a synonym of P. compressus.[6] While this genus is mostly known from isolated teeth, an associated dentition of P. compressus was found in the Weno Formation of Texas .[7] It went extinct around the Albian-Cenomanian boundary, as a supposed Coniacian occurrence of "P. sp." is likely a misidentified pseudoscapanorhynchid.[8]

References

  1. Herman, J. (1979). "Réflexions sur la systématique des Galeoidei et sur les affinités du genre Cetorhinus à l'occasion de la découverte d'éléments de la denture d'un exemplaire fossile dans les Sables du Kattendijk à Kallo (Pliocène inférieur, Belgique)". Annales de la Société géologique de Belgique 102 (1): 357–377. https://popups.uliege.be/0037-9395/index.php?id=4357. 
  2. Pictet, F.J.; Campiche, G. (1858–1860). Description des fossiles du terrain crétacé des environs de Sainte-Croix. Première partie. Geneva: J. Kessmann & H. Georg. https://gallica.bnf.fr/ark:/12148/bpt6k65397362/f1.item. 
  3. Sokolov, M.I. (1978). Zuby akul kak rukovodyashchiye iskopayemyye pri zonalʹnom raschlenenii melovykh otlozheniy Turanskoy plity [Shark teeth as guiding fossils in the zonal division of the Cretaceous deposits of the Turan Plate]. Moscow: Nedra. https://www.geokniga.org/books/20185. 
  4. Mertinienė, R.; Nessov, L.; Nazarkin, M. (1994). "Cretaceous sharks of the genus Paraisurus in Uzbekistan and Lithuania". Geologija 17: 139–143. https://www.researchgate.net/publication/273777244. 
  5. Cappetta, H. (2012). Handbook of Paleoichthyology. Volume 3E. Chondrichthyes. Mesozoic and Cenozoic Elasmobranchii: Teeth.. Munich: Verlag Dr. Friedrich Pfeil. ISBN 978-3-89937-148-2. 
  6. Amalfitano, J. (2021). "Reappraisal of the record of the genus Paraisurus (Chondrichthyes; Lamniformes) from the Lower Cretaceous of northern Italy". Bollettino della Società Paleontologica Italiana 60 (2): 157–167. doi:10.4435/BSPI.2021.07. 
  7. Welton, B.J.; Farish, R.F. (1993). The Collector's Guide to Fossil Sharks and Rays from the Cretaceous of Texas. Lewisville, TX: Before Time. ISBN 0-9638394-0-3. http://mmtk.ginras.ru/pdf/Welton,Farish,1993_The%20Collector's%20Guide_Fossil%20Shark.pdf. 
  8. Siversson, M.; Machalski, M. (2017). "Late late Albian (Early Cretaceous) shark teeth from Annopol, Poland". Alcheringa 41 (4): 433–463. doi:10.1080/03115518.2017.1282981. Bibcode2017Alch...41..433S. 

Wikidata ☰ Q104848485 entry