Family Astriclypeidae Stefanini 1912 (sand dollar)

Echinoidea - Clypeasteroida - Astriclypeidae

Full reference: G. Stefanini. 1912. Osservazioni sulla distribuzione geografica, sulla origini e sulla filogenesi degli Scutellidae. Bolletino della Societa Geologica Italiana 30:739-754

Parent taxon: Scutelliformes according to A. Kroh and A. B. Smith 2010

See also Durham 1966

Sister taxa: Abertellidae, Dendrasteridae, Echinarachniidae, Eoscutellidae, Mellitidae, Monophorasteridae, Placatenellidae, Protoscutellidae, Rotulidae, Scutasteridae, Scutellidae, Taiwanasteridae

Subtaxa: Amphiope Astriclypeus Echinodiscus

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Type: Astriclypeus

Ecology: slow-moving semi-infaunal detritivore

Distribution:

• Pliocene of Taiwan (1 collection)

• Miocene of Egypt (1), Italy (2), Taiwan (4)

• Oligocene of Japan (5), Jordan (1), Libya (1), Taiwan (1)

Total: 16 collections each including a single occurrence

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