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Physa is a genus of small, left-handed or sinistral, air-breathing freshwater snails, ... † Physa aridi Mezzalira, 1974 – fossil from Brazil [3]
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).
Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites † Baculites † Baculites calamus Barbatia † Barbatia tramitensis † Barrancapus † Batrachopus † Batrachopus deweyi † Bellifusus † Bellifusus gracilistriatus † Bellifusus willistoni – or unidentified comparable form † Beudanticeras † Beudanticeras victoris Fossil slab and counterslab of the bony fish ...
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]
Physa †Pinna †Placenticeras †Placenticeras cumminsi; Restoration of the Late Triassic synapsid (mammal precursor) Placerias with an anachronistic human to scale †Placerias – type locality for genus †Placerias hesternus – type locality for species; Plicatula † Pollex – tentative report; Polydora – tentative report †Poposaurus
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.
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Publications by Dwight Willard Taylor include: [2] TAYLOR, D. W., 1949a [19 March], STS winner writes. Science News Letter 55(12): 182 [excerpt of Taylor 1949b].; TAYLOR, D. W., 1949b [November], A malacological survey of Nantucket Island, Massachusetts. Pp. 18–21 and back cover, in: How you can search for science talent: a book of facts about the Ninth Annual Science Talent Search for ...