Physa aridi

Physa aridi is a fossil species of air-breathing freshwater snail, an extinct aquatic pulmonate gastropod mollusk in the family Physidae. This species has a small, left-handed (or sinistral) shell, as is always the case in this family. Physa aridi dates from the Senonian (Upper Cretaceous) of the Bauru Group, in São Paulo state, Brazil.[1]

Physa aridi
Temporal range:
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia

clade Euthyneura
clade Panpulmonata

clade Hygrophila
Superfamily:
Planorboidea
Family:
Physidae
Subfamily:
Physinae
Tribe:
Physini
Genus:
Physa
Species:
†P. aridi
Binomial name
Physa aridi
Mezzalira, 1974[1]

References
  1. Simone, L.R.L. & Mezzalira, S. 1994. Fossil Molluscs of Brazil. Boletim do Instituto Geológico 11: 1–202.


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