Rhombodus

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Rhombodus
Temporal range: Cretaceous - Paleocene
Rhombodontidae - Rhombodus meridionalis.JPG
Fossil tail spines of Rhombodus meridionalis from Khouribga (Morocco.)
Scientific classification
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Rhombodus

Dames 1881 [1]

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

Contents

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 Rhombodus NT small.jpg
Life reconstruction of Rhombodus binkhorsti

Species

Species within this genus include: [1]

Description

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

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

See also

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References

  1. 1 2 3 4 5 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