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Diplocidaridae
Diplocidaridae
is an
extinct
family
of
sea urchins
.
These slow-moving
low-level
epifaunal
grazer-omnivores
lived
in the
Jurassic period
, from
161
.2 to
150
.8 Ma.
Generas
Diplocidaris
Desor
,
1855
Rolliericidaris
Tetracidaris