Fossarus (Isapsis) Adams and Adams (snail)

Gastropoda - Cerithioidea - Planaxidae

Alternative spellings: Fossarus (Isapis), Isapis

Parent taxon: Fossarus according to B. L. Clark and J. W. Durham 1946

See also Martin 1904

Sister taxa: Fossarus ambiguus, Fossarus dalli

Subtaxa: Fossarus (Isapsis) bolivarensis

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Ecology: epifaunal grazer

Distribution:

• Pliocene of United States (1: Florida collection)

• Eocene of Colombia (2)

Total: 3 collections each including a single occurrence

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