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

Ammonoidea Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttle ...

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

Razgrad Razgrad ( bg, Разград ) 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. Etymolo ...

. 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 el. 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 132.9 ± 2 Ma and 129.4 ± 1.5 Ma (million years ago). The Hauterivian is preceded by the Va ...

and the

Barremian The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is preceded ...

in Europe and western Africa.

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