Back Paracestracion German Paracestracion Hungarian Paracestracion Italian Paracestracion Dutch

Paracestracion

Paracestracion
Temporal range: Early Jurassic-Early Cretaceous,
182.7–132.9 Ma
Holotype specimen of Paracestracion danieli
Paracestracion falcifer fossil from Solnhofen, Germany
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Division: Selachii
Order: Heterodontiformes
Family: †Paracestracionidae
Genus: †Paracestracion
Koken in Zittel, 1911[1]
Type species
†Paracestracion falcifer
Koken, 1911 vide Wagner, 1858[6]
Other species
  • †P. bellis Underwood & Ward, 2004[2]
  • †P. danieli Slater, 2016
  • †P. pectinatus Guinot et al., 2014[3]
  • †P. sarstedtensis Thies, 1983[4]
  • †P. viohli Kriwet, 2008[5]
Synonyms

Paracestracion is an extinct genus of heterodontiform sharks from Early Jurassic to Early Cretaceous-aged rocks of England, France, Germany and Luxembourg. The genus was first described in 1911 by Ernst Hermann Friedrich von Koken in Karl Alfred von Zittel.[1]

The genus contains several Late Jurassic species known from well preserved full body remains, which show that it differs from the living bullhead sharks in the placement of the pelvic girdle and fins, as well as by having a shorter skull.[7][8]

  1. ^ a b Zittel, K. A., (1911): Grundzüge der Paläontologie (Paläozoologie). Neubearbeitet von F. Broili, E. Koken, M. Schlosser. II. Abteilung. Vertebrata. Oldenbourg 1911. Zweite vermehrte und verbesserte Auflage. Gr.8°. VII, 598 S.
  2. ^ C. J. Underwood and D. J. Ward. (2004). Neoselachian sharks and rays from the British Bathonian (Middle Jurassic). Palaeontology 47(3):447-501
  3. ^ Guinot, G.; Cappetta, H.; Adnet, S. (2014): A rare elasmobranch assemblage from the Valanginian (Lower Cretaceous) of southern France. Cretaceous research 48: 54–84. doi:10.1016/j.cretres.2013.11.014
  4. ^ a b Cite error: The named reference Thies1983 was invoked but never defined (see the help page).
  5. ^ J. Kriwet. (2008). A new species of extinct bullhead sharks, Paracestracion viohli sp. nov. (Neoselachii, Heterodontiformes), from the Upper Jurassic of South Germany. Acta Geologica Polonica 58(2):235-241
  6. ^ a b Cite error: The named reference Wagner1857 was invoked but never defined (see the help page).
  7. ^ Slater, Tiffany S.; Ashbrook, Kate; Kriwet, Jürgen (August 2020). Cavin, Lionel (ed.). "Evolutionary relationships among bullhead sharks (Chondrichthyes, Heterodontiformes)". Papers in Palaeontology. 6 (3): 425–437. Bibcode:2020PPal....6..425S. doi:10.1002/spp2.1299. hdl:10468/10339. ISSN 2056-2799. S2CID 214133104.
  8. ^ Villalobos-Segura, Eduardo; Stumpf, Sebastian; Türtscher, Julia; Jambura, Patrick; Begat, Arnaud; López-Romero, Faviel; Fischer, Jan; Kriwet, Jürgen (2023-03-08). "A Synoptic Review of the Cartilaginous Fishes (Chondrichthyes: Holocephali, Elasmobranchii) from the Upper Jurassic Konservat-Lagerstätten of Southern Germany: Taxonomy, Diversity, and Faunal Relationships". Diversity. 15 (3): 386. doi:10.3390/d15030386. ISSN 1424-2818. PMC 7614348. PMID 36950327.
From Wikipedia, the free encyclopedia · View on Wikipedia

Developed by Nelliwinne