Brachyura, Linnaeus, 1758

Pasini, Giovanni, Garassino, Alessandro & Sami, Marco, 2019, Decapod assemblage from the late Miocene (early-middle Messinian) of the Romagna Apennines nearby Brisighella, Emilia-Romagna (N Italy), Natural History Sciences 6 (1), pp. 27-32 : 31

Family, genus and species indet.

Fig. 3C

Material and measurements: One small carapace in dorsal view (MSF 2316 – lcxp: 3 mm, wcxp: 3 mm).

Discussion. The studied specimen shows some general dorsal proxy characters that do not seem to fit into any brachyuran described to date, such as the great development of the undifferentiated branchial regions and single posterior smooth transversal ridge. However, the tiny size of the carapace (most probably an immature individual) and the poorly preserved frontal and anterolateral margins do not allow close comparisons.

Therefore, the specimen is simply assigned to the Brachyura in a generic way.

Figures

Fig. 3 - A) Monodaeus bortolottii Delle Cave, 1988, MSF 2300 (x 2.6). B) Goneplax cf. G. gulderi Bachmayer, 1953, MSF 2332 (x 10). C) Family, genus and species indet., MSF 2316 (x 16.6).