Misplaced Pages

Lethenia

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Extinct Genus of Mackerel Shark

Lethenia
Temporal range: Early Oligocene PreꞒ O S D C P T J K Pg N
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Lamniformes
Family: Lamnidae
Genus: Lethenia
Baut & Génault, 1999
Species
  • Lethenia vandenbroeki

Lethenia is an extinct genus of mackerel shark from the Rupelian age of the Oligocene epoch. It is a monotypic genus, containing only L. vandenbroeki. It is considered closely related to Isurolamna and sometimes included within it. It differs in the morphology of its teeth, which are much more gracile than Isurolamna and has larger spacing between its crown and lateral cusps. Lethenia is rare and only known from isolated teeth. It is best known from the Boom Clay Formation of Belgium and the Uzunbas Formation of Kazakhstan.

References

  1. Henri, Cappetta. (2012). Chondrichthyes. Mesozoic and Cenozoic Elasmobranchii: Teeth. Handbook of Paleoichthyology. 3.
  2. BAUT, J.-P. & GENAULT, B. (1999) Les Elasmobranches des Sables de Kerniel (Rupélien), à Gellik, Nord Est de la Belgique, Memoirs of the Geological Survey of Belgium, 45: 1–61
  3. "elasmo.com". www.elasmo.com. Retrieved 2020-09-01.
  4. "www.somniosus.be". somniosus.be. Retrieved 2020-09-01.


Stub icon

This article about a prehistoric shark is a stub. You can help Misplaced Pages by expanding it.

Categories: