Superfamily Urocoptoidea Pilsbry 1898 (slug)

Gastropoda - Stylommatophora

Parent taxon: Helicina according to P. Bouchet et al. 2017

Sister taxa: Arionoidei, Clausilioidei, Helicoidei, Limacoidei, Oleacinoidei, Orthalicoidei, Plectopyloidea, Punctoidea, Pupilloidei, Rhytidoidei, Succineoidei, Testacelloidea

Subtaxa: Cerionidae Holospiridae Urocoptidae

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Ecology: epifaunal

Distribution:

• Oligocene of Mexico (3 collections)

• Eocene of Brazil (1), United States (6: Wyoming)

• Paleocene of United States (1: Texas)

• Cretaceous of Mexico (1)

Total: 12 collections each including a single occurrence

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