Pachyrhizodus

Pachyrhizodus
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Classification
Règne Animalia
Embranchement Chordata
Sous-embr. Vertebrata
Classe Actinopterygii
Ordre † Crossognathiformes
Famille † Pachyrhizodontidae

Genre

† Pachyrhizodus
Agassiz in Dixon (d), 1850

Espèces de rang inférieur

Pachyrhizodus est un genre fossile d'actinoptérygiens ayant vécu du Crétacé au Paléocène[1] dans ce qui est aujourd'hui l'Europe, l'Amérique du Nord, l'Amérique du Sud et l'Océanie. De nombreuses espèces sont connues, principalement du Crétacé d'Angleterre et du Midwest des États-Unis[2].

Systématique

Le genre Pachyrhizodus a été créé en 1850 par le paléontologue américain Louis Agassiz (1807-1873) dans une publication du géologue britannique Frederick Dixon (d) (1799-1849) et avec pour espèce type Pachyrhizodus basalis[3],[4].

Liste d'espèces

Étymologie

Le nom générique, Pachyrhizodus, dérive du grec ancien παχύς, pakhús, « épais, gras », ῥίζα, rhiza, « racine », et ὀδούς, odoús, « dent »[4].

Historique des recherches

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Publication originale

Document utilisé pour la rédaction de l’article : document utilisé comme source pour la rédaction de cet article.

  • (en) Frederick Dixon, The geology and fossils of the Tertiary and Cretaceous formations of Sussex, Londres, Longman, Brown, Green and Longmans, , 423 p. (lire en ligne). Ouvrage utilisé pour la rédaction de l'article.

Voir aussi

Liens externes

Sur les autres projets Wikimedia :

Notes et références

Notes

(en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé « Pachyrhizodus » (voir la liste des auteurs).

Références taxonomiques

Références

  1. ↑ (en) Kerri H. Cope, John E. Utgaard, John M. Masters et Rodney M. Feldmann, « The fauna of the Clayton Formation (Paleocene, Danian) of southern Illinois: A case of K/P survivorship and Danian recovery », Bulletin of the Mizunami Fossil Museum, vol. 32,‎ , p. 97-108 (lire en ligne)
  2. ↑ (en) Peter J. Forey, « The osteology of Notelops Woodward, Rhacolepis Agassiz and Pachyrhizodus Dixon (Pisces: Teleostei) », Bulletin of the British Museum (Natural History) Geology, vol. 28, no 2,‎ , p. 123-204 (lire en ligne)
  3. ↑ GBIF Secretariat. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org, consulté le 28 décembre 2022
  4. ↑ a et b Dixon 1850, p. 374

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