Clypeidae: Clypeidae is a family of sea urchins belonging to the order Clypeasteroida. This family is known in the fossil record from the Jurassic (Bajocian age) to Cretaceous (Santonian age) (age range: from about 164.7 to 94.3 million years ... (Biology) [100%] 2023-12-15 [Clypeasteroida] [Echinoderm families]...
Clypeidae: Clypeidae is a family of sea urchins belonging to the order Clypeasteroida. This family is known in the fossil record from the Jurassic (Bajocian age) to Cretaceous (Santonian age) (age range: from about 164.7 to 94.3 million years ... (Family of sea urchins) [100%] 2023-10-11 [Clypeasteroida] [Echinoderm families]...
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