''Cobcrephora'' is a genus of that resembles the
Palaeoloricates, known from the
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago (Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoi ...
of
Gotland
Gotland (, ; ''Gutland'' in Gutnish), also historically spelled Gottland or Gothland (), is Sweden's largest island. It is also a province, county, municipality, and diocese. The province includes the islands of Fårö and Gotska Sandön to th ...
.
Its interpretation as a polyplacophoran is widely challenged.
Its
mollusc shell
The mollusc (or molluskOften spelled mollusk shell in the USA; the spelling "mollusc" are preferred by ) shell is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which ...
is unique, because ''Cobcrephora'' was described on the basis of isolated phosphatic sclerites.
[Bischoff, G. C. O. 1981. Cobcrephora n. g., representative of a new Polyplacophoran order phosphatoloricata, with calciumphosphatic shells. Senckenbergiana Lethaea, 61:173-215] Its overlapping sclerites are arched and small, comprise two shell layers, and have lamellar projections.
[
]
References
Silurian animals
Prehistoric chiton genera
{{Chiton-stub