Rhombodus is a prehistoric genus of ray belonging to the family Rhombodontidae.

Rhombodus
Temporal range: Cretaceous - Paleocene [1]
Fossil tail spines of Rhombodus meridionalis from Khouribga (Morocco.)
Scientific classification
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Genus:
Rhombodus

Dames 1881[1]

Species within this genus lived from the Cretaceous period, Maastrichtian age to the Paleocene epoch, from 70.6 to 55.8 million years ago.[1]

Life reconstruction of Rhombodus binkhorsti

Species

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Species within this genus include:[1]

  • Rhombodus andriesi Noubhani and Cappetta 1994
  • Rhombodus binkhorsti Dames, 1881 North America
  • Rhombodus bondoni Arambourg 1952
  • Rhombodus carentonensis Vullo 2005
  • Rhombodus ibericus Kriwet et al. 2007
  • Rhombodus laevis Cappetta and Case 1975
  • Rhombodus meridionalis Arambourg 1952
  • Rhombodus microdon Arambourg 1952

Description

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Rhombodus species could reach a length of 75–100 centimetres (30–39 in).[3] This genus is known from its caudal spines and rhombic teeth, which are all that usually fossilises. These rhombic teeth are bilobate, with vertical wrinkles and a width of about 1.5 centimetres (0.59 in).[4]

Distribution

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Fossils have been found in the sediments of Africa, Europe, Asia and the Americas.[1]

See also

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References

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  1. ^ a b c d e Fossilworks
  2. ^ Cuny, Gilles; Martin, Jeremy E.; Sarr, Raphaël (2012-04-01). "A neoselachian shark fauna from the Late Cretaceous of Senegal". Cretaceous Research. 34: 107–115. doi:10.1016/j.cretres.2011.10.008. ISSN 0195-6671.
  3. ^ Cow Nosed Rays
  4. ^ Jim Bourdon Rhombodus - Extinct myliobatoid ray