''Agassizilia'' is an extinct genus of
pycnodont fishes from the mid-Cretaceous (
Albian-
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the s ...
)
Kem Kem Group in south-east Morocco. The genus contains a single species, ''A. erfoudina''. It was described from an isolated prearticular bone (lower jaw) with a unique tooth arrangement on its dental pavement which differentiates it from all other known pycnodont genera. It is the first new genus of pycnodont fish to be found in the Moroccan Kem Kem Group. Although the rest of its skeleton is unknown, the pavement of blunt delicate teeth on the holotype suggests that it fed of soft shelled invertebrates such as shrimp or
ostracods.
[Cooper, S.L.A. and Martill, D.M. (2020) "A diverse assemblage of pycnodont fishes (Actinopterygii: Pycnodontiformes) from the mid-Cretaceous, continental Kem Kem Group of South-east Morocco", Cretaceous Research 112, 104456]
References
Pycnodontiformes
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