Isolated decapod crustacean fingers from the Miocene (Langhian) of the Vienna and Carpathian Foreland basins (Czech Republic)
Abstrakt
From Czech middle Miocene (Langhian; Badenian) localities a number of isolated cheliped fingers of decapod crustaceans were identified. Material was collected from Kienberg in the northern Vienna Basin and Hluchov in the south-eastern Carpathian Foreland Basin.
In the present contribution cheliped fingers from these localities are documented by SEM and were identified as snapping shrimps of the genus Alpheus (Decapoda: Caridea: Alphcidae). Numerous additional fragmentary specimens represent several morphotypes of brachyuran claws of uncertain identities.
Snapping shrimp claw fingertips exhibit two morphotypes, possibly reflecting sexual dimorphism. The novel occurrence at Hluchov is the second formal report of fossil alpheid shrimps from the Czech Republic.