Calappa granulata (Linnaeus, 1758) (Crustacea, Decapoda, Brachyura, Calappidae) and Astiplax aspera n. gen., n. sp. (Crustacea, Decapoda, Brachyura, Goneplacidae) from the Asti sands Fm. (Late Pliocene) of S. Pietro (Asti, Piedmont, NW Italy)

Resumen

Two crabs from the
Pliocene sands of S. Pietro (Asti, Piedmont, NW Italy) have been
assigned to Calappa granulata (Linnaeus, 1758) (Calappidae De Haan,
1833) and to Astiplax aspera n. gen., n. sp. (Goneplacidae MacLeay,
1838). Although C. granulata has already been reported from the
Pliocene of other Italian regions, the Piedmont specimen represents
one of the most complete carapaces known to date in the fossil
record of this extant species. The discovery of Astiplax n. gen.,
with A. aspera n. sp. increases the number of species of
Goneplacidae from the Pliocene of Italy, limited to Goneplax
rhomboides (Linnaeus, 1758) and G. sacci Crema, 1895.