Family Laganidae Desor 1858 (sand dollar)

Echinoidea - Clypeasteroida - Laganidae

Alternative spelling: Laganes

Full reference: E. Desor. 1858. Synopsis des échinides fossiles. Reinwald, Paris 1-490

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

See also Clark and Twitchell 1915, Durham 1955, Durham 1966, Kosnik 2002, Lindley 2001 and Smith 2009

Sister taxon: Fibulariidae

Subtaxa: Fibulina Hupea Jacksonaster Laganinae Laganum Neolaganinae Peronella Peronellites Rumphia Sismondia

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Ecology: slow-moving semi-infaunal detritivore

Distribution:

• Quaternary of Saudi Arabia (1 collection)

• Pliocene to Pleistocene of Egypt (1)

• Pliocene of Egypt (2), Papua New Guinea (1)

• Miocene to Pliocene of United States (2: California)

• Miocene of Cuba (1), Fiji (3), Indonesia (2), Papua New Guinea (1), South Africa (1)

• Oligocene of Antigua and Barbuda (1), Mexico (1), Oman (1), United States (1: Alabama)

• Eocene of Egypt (2), Germany (1), Libya (2), Panama (1), Romania (1), United States (5: Florida, Georgia)

Total: 31 collections including 35 occurrences

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