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Physa sp., Lake Winnipeg Physa, lives in Manitoba in Canada. It was classified as endangered by COSEWIC . COSEWIC recommendation has been forwarded to the Minister of the Environment of Canada and a decision for listing at the List of Wildlife Species at Risk of the Canadian Species at Risk Act was pending in 2005.
Physa aridi is a fossil species of air-breathing freshwater snail, an extinct aquatic pulmonate gastropod mollusc 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]
List of prehistoric brittle stars; List of prehistoric bryozoan genera; List of prehistoric chitons; List of prehistoric foraminifera genera; List of ichthyosaur genera; List of marine gastropod genera in the fossil record; List of plesiosaur genera; List of prehistoric malacostracans; List of prehistoric medusozoan genera; List of prehistoric ...
Physa mezzalirai is an extinct fossil species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusc belonging to the family Physidae.This species is characterized by its small sinistral (left-handed) shell, a common feature in this family.
Researchers in Scotland have unveiled the skeleton of a 164-million-year-old fossil known as the Storr Lochs Monster which is an ancient marine reptile.
The holotype specimen (University of Michigan Museum of Zoology #181292) was a fossil from Beaver Co., Oklahoma (Taylor 1954). [5] The species may be Holarctic in distribution based on shells found in Ukraine (Degtyarenko, E. and V. Anistratenko 2011).
The name Physella means "little bladder", from Greek physa, [3] and the diminuative ending "-ella". This is in reference to the genus Physa, which P. acuta has, at times, been placed in. Acuta is a Latin word meaning sharp. [4]
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