Biology:Lilamna

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Short description: Extinct genus of sharks

Lilamna
Temporal range: late Eocene? (possibly Cretaceous)
Lilamna tooth.png
Drawing of the holotype tooth
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Subdivision: Selachimorpha
Order: Lamniformes
Family: Pseudoscapanorhynchidae
Genus: Lilamna
Greenfield, 2021
Type species
Lilamna apophysata
(Li, 1997)
Synonyms

Lilamna is an extinct genus of mackerel sharks from the Wulagen Formation of the Tarim Basin, China . It was originally named Archaeolamna apophysata,[1] but that generic name was preoccupied by Archaeolamna kopingensis.[2] Lilamna was named as a replacement in accordance with the rules of the International Code of Zoological Nomenclature.[3] Although formerly assigned to the family Lamnidae,[1] it is now considered to be a potential member of the family Pseudoscapanorhynchidae.[3] Since this family is otherwise restricted to the Cretaceous, it is possible that the holotype tooth was reworked into the late Eocene sediments it was found in.[3]

References

Wikidata ☰ Q108853696 entry