Psiloceras
Encyclopedia
Psiloceras is an extinct genus of cephalopod
belonging to the ammonite
subclass. Psiloceras fossils are commonly found at Lyme Regis
, Dorset Coast
, England. Here smooth-shelled Psiloceras planorbis are to be found as usually flattened fossils in the Blue Lias
.
Cephalopod
A cephalopod is any member of the molluscan class Cephalopoda . These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles modified from the primitive molluscan foot...
belonging to the ammonite
Ammonite
Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct subclass within the Molluscan class Cephalopoda which are more closely related to living coleoids Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct...
subclass. Psiloceras fossils are commonly found at Lyme Regis
Lyme Regis
Lyme Regis is a coastal town in West Dorset, England, situated 25 miles west of Dorchester and east of Exeter. The town lies in Lyme Bay, on the English Channel coast at the Dorset-Devon border...
, Dorset Coast
Dorset Coast
Dorset Coast may refer to:* MSTS: Dorset Coast - Route for MSTS1* Dorset - The county in the UK...
, England. Here smooth-shelled Psiloceras planorbis are to be found as usually flattened fossils in the Blue Lias
Blue Lias
The Blue Lias is a geologic formation in southern, eastern and western England and parts of South Wales, part of the Lias Group. The Blue Lias consists of a sequence of limestone and shale layers, laid down in latest Triassic and early Jurassic times, between 195 and 200 million years ago...
.