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Paracestracion

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Paracestracion
Temporal range: Early Jurassic-Early Cretaceous,
182.7–132.9 Ma
Paracestracion falcifer fossil from Solnhofen, Germany
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Subdivision: Selachimorpha
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. pectinatus Guinot et al., 2014[3]
  • †P. sarstedtensis Thies, 1983[4]
  • †P. viohli Kriwet, 2008[5]
Synonyms

Paracestracion is an extinct genus of heterodontid sharks from Early Jurassic to Early Cretaceous-aged rocks of England, France, Germany and Luxembourg. The genus, first described in 1911 by Ernst Hermann Friedrich von Koken in Karl Alfred von Zittel,[1] contains five species: P. bellis from the Bathonian of England,[2] the type species P. falcifer from the Tithonian and Kimmeridgian of Weymouth, England and Solnhofen, Germany, which was originally named as a species of Cestracion (now seen as a synonym of Heterodontus) in 1857 by Johann Andreas Wagner,[6] P. pectinatus from the Valanginian of France,[3] P. sarstedtensis, originally classified as a species of Heterodontus, from the Toarcian and Aalenian of Germany,[4] and P. viohli from the Tithonian-aged Painten Formation of Germany,[5][7] with a sixth indeterminate species known from the Toarcian-aged Variabilis layer of the La Couche à Crassum (part of the larger Posidonia Shale) of Luxembourg.[8]

References

  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. ^ a b C. J. Underwood and D. J. Ward. (2004). Neoselachian sharks and rays from the British Bathonian (Middle Jurassic). Palaeontology 47(3):447-501
  3. ^ a b 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 c D. Thies. (1983). (Jurassic neoselachians from Germany and S[outh]-England). Courier Forschungsinstitut Senckenberg 58:1-116 [in German]
  5. ^ a b 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 c Wagner, J. A. (1857) Characteristics of new species of cartilage fish from the lithographic slates of the Solnhofen area. Gelehrte Anzeigen der königlich bayerischen Akademie der Wissenschaften, 44 (35,36): 288–293 [in German]
  7. ^

    Arrati, G. 2000. Remarkable teleostean fishes from the Late Jurassic of southern Germany and their phylogenetic relationships. Mitteilungen aus dem Museum für Naturkunde in Berlin, Geowissenschaften Reihe 3. 137–179. .

  8. ^ D. Delsate and R. Weis. (2010). La Couche à Crassum (Toarcien moyen) au Luxembourg: stratigraphie et faunes de la coupe de Dudelange-Zoufftgen. Ferrantia 62:35-62
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