PTRM


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PTRM

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In Ankylodon progressus and PTRM 1600, the protoconid and metaconid have a direct buccal-lingual alignment as opposed to an oblique orientation in Ankylodon annectens.
Specimens in this study came from a single quarry sample (Pioneer Trails Regional Museum, PTRM, locality V89002) in a yellowish-brown, medium to coarse grained, poorly consolidated sandstone approximately 3.5 m above the base of the formation.