Serratolamna

Serratolamna is an extinct genus of mackerel sharks belonging to the family Cretoxyrhinidae.

Serratolamna
Temporal range: Cretaceous - Eocene [1]
Fossil teeth of Serratolamna gafsana from Khouribga (Morocco)
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Order:
Lamniformes
Family:
Cretoxyrhinidae
Genus:
Serratolamna

Landemaine 1991

These sharks lived from the Cretaceous period to the Eocene epoch, approximately from 99.7 to 50.3 million years ago.[1]

Similar and related genera include Cretodus, Cretolamna, Cretoxyrhina, Dallasiella, Paraisurus, Plicatolamna.[1]

Species

Species within this genus include:[2]

  • Serratolamna africana
  • Serratolamna amonensis
  • Serratolamna caraibaea
  • Serratolamna gafsana White, 1926
  • Serratolamna khderii
  • Serratolamna lerichei (Casier, 1946)
  • Serratolamna serrata (Agassiz 1843) [3]

Description

The fossils of Serratolamna mainly consist of teeth and scattered vertebrae. The teeth are asymmetrical with smooth crowns and multiple cusplets. The basal margin of the roots are V-shaped.[2] Based on the size of its teeth, it appears Serratolamna grew no larger than 1.5 metres.[3]

Distribution

Fossils of species within this genus have been found in the Eocene sediments in United States and in the Cretaceous of France, Madagascar, Mexico, Morocco, Sweden and United States.[1]

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See also
  • Prehistoric fish

References
  1. "Fossilworks: Serratolamna". fossilworks.org. Retrieved 2015-05-16.
  2. "Gli squali fossili: Serratolamna". squali.com. Retrieved 2015-05-16.
  3. CHARLIE J.UNDERWOOD and SIMON F.MITCHELL Serratolamna serrata (Agassiz) (Pisces, Neoselachii) from the Maastrichtian (Late Cretaceous) of Jamaica


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