''Speocarcinus'' is a genus of

crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the ...

s in the family

Xanthidae Xanthidae is a family of crabs known as gorilla crabs, mud crabs, pebble crabs or rubble crabs. Xanthid crabs are often brightly coloured and are highly poisonous, containing toxins which are not destroyed by cooking and for which no antidote is ...

, containing six extant species, one fossil species from the Late

Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...

, one fossil species from the

Eocene The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene' ...

(

Lutetian The Lutetian is, in the geologic timescale, a stage or age in the Eocene. It spans the time between . The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Midd ...

) and one fossil species from the Early

(

Ypresian In the geologic timescale the Ypresian is the oldest age (geology), age or lowest stage (stratigraphy), stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by th ...

): *'' Speocarcinus carolinensis'' Stimpson, 1859 *''

Speocarcinus granulimanus ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian In the ...

'' Rathbun, 1894 *'' Speocarcinus lobatus'' Guinot, 1969 *''

Speocarcinus meloi ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian): *'' Spe ...

'' D'Incao & Gomes da Silva, 1992 *''

Speocarcinus monotuberculatus ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian): *'' Spe ...

'' Falder & Rabalais, 1986 *''

Speocarcinus spinicarpus ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian): *'' Spe ...

'' Guinot, 1969 *† ''

Speocarcinus berglundi ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian): *'' Spe ...

'' Tucker ''et al.'', 1994 *† ''

Speocarcinus tuberculatus ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian): *'' Spe ...

'' (Beschin, De Angeli, Checchi & Zarantonello, 2005); originally described as a species of '' Paraxanthosia'', transferred to the genus ''Speocarcinus'' by Beschin ''et al.'' (2012) *† ''

Speocarcinus latus ''Speocarcinus'' is a genus of crabs in the family Xanthidae, containing six extant species, one fossil species from the Late Miocene, one fossil species from the Eocene (Lutetian) and one fossil species from the Early Eocene (Ypresian): *'' Spe ...

'' Beschin ''et al.'', 2016

References

Xanthoidea Extant Ypresian first appearances {{Crab-stub