''Abrytasites'' (''Abrytusites'') is an extinct genus of cephalopods belonging to the

Ammonoidea Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...

subclass.

Description

The genus was named after the ancient Roman town of Abrittus, located near the present Bulgarian city of

Razgrad Razgrad ( ) is a city in Northeastern Bulgaria in the valley of the Beli Lom river that falls within the historical and geographical region of Ludogorie (Deliorman). It is an administrative center of Razgrad Province. Etymology The suffix "gra ...

. There are several described species of ''Abrytasites'', including A. ''thieuloyi'', A. ''julianyi'', and A. ''neumayri''. They are inflated, with constrictions, have rather thick ribs springing irregularly, singly or in pairs, from umbilical bullae. Their inner whorls closely resemble types species of ''Valdedorsella''. with and (1996), ''Mollusca 4 Revised, Cretaceous Ammonoidea'', vol. 4, in ''Treatise on Invertebrate Paleontology'', Part L (Roger L. Kaesler et al. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, at 72. This animal lived 125–136.4 million years ago during the

Hauterivian The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.6 ± 2 Ma and 125.77 (million years ago). The Hauterivian is preceded by the Valangi ...

and the

Barremian The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 125.77 Ma (million years ago) and 121.4 ± 1.0 Ma (Historically, this stage was placed at 129.4 million to approximately 125 million years ago) It is a ...

in Europe and western Africa.

Description

See also

References

External links