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You searched for: All Creators Donaldson, Alan C., 1929- Remove constraint All Creators: Donaldson, Alan C., 1929- Subject Topical Geology, Stratigraphic--Ordovician. Remove constraint Subject Topical: Geology, Stratigraphic--Ordovician.
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1. A Patelliform gastropod, Palaelophacmaea criola : a new genus and species from the lower Ordovician of central Pennsylvania.

Creator Personal:
Donaldson, Alan C., 1929-
Title:
A Patelliform gastropod, Palaelophacmaea criola : a new genus and species from the lower Ordovician of central Pennsylvania.
Call Number:
P18134
Date:
1962
Description:
Journal article reprint from: Proceedings of West Virginia Academy of Science, v.34 (1962).
Subject Topical:
Geology, Stratigraphic--Pennsylvania., Geology, Stratigraphic--Ordovician.
All:
Geology, Stratigraphic--Pennsylvania., Geology, Stratigraphic--Ordovician.