Myoscolex
Encyclopedia
Myoscolex is a problematic fossil from the Cambrian
Emu Bay Shale
that, originally interpreted as an annelid, seems to be an arthropod; the possible presence of an Opabinia
-like nozzle suggests a plausible relationship with that animal.
Cambrian
The Cambrian is the first geological period of the Paleozoic Era, lasting from Mya ; it is succeeded by the Ordovician. Its subdivisions, and indeed its base, are somewhat in flux. The period was established by Adam Sedgwick, who named it after Cambria, the Latin name for Wales, where Britain's...
Emu Bay Shale
Emu Bay shale
The Emu Bay Shale is a geological formation in Emu Bay, South Australia, containing a major Konservat-Lagerstätten . It is one of two in the world containing Redlichiidan trilobites...
that, originally interpreted as an annelid, seems to be an arthropod; the possible presence of an Opabinia
Opabinia
Opabinia is an animal genus found in Cambrian fossil deposits. Its sole species, Opabinia regalis, is known from the Middle Cambrian Burgess Shale of British Columbia, Canada. Fewer than twenty good specimens have been described; 3 specimens of Opabinia are known from the Greater Phyllopod bed,...
-like nozzle suggests a plausible relationship with that animal.