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Title:Morphometric Approaches to Analysis of Microevolution: Morphologic Variation in Paleozoic Bryozoa
Author(s):Holdener, Eric James
Doctoral Committee Chair(s):Blake, D.B.
Department / Program:Geology
Discipline:Geology
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Paleozoology
Abstract:Temporal variation is recognized among stratigraphically separated populations. Colonies become more gracile through time, but populations are not ecotypes tracking favorable environmental conditions. Characters describing zooidal living chambers contribute more to the discrimination of populations through time, and shifts occur in interdependent character responses. Unidirectional temporal morphologic trends are expressed among individual characters and among all populations analyzed concurrently. These trends continue across five sampled intervals despite fluctuating environmental conditions.
Issue Date:1997
Type:Text
Language:English
Description:262 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1997.
URI:http://hdl.handle.net/2142/86548
Other Identifier(s):(MiAaPQ)AAI9812620
Date Available in IDEALS:2015-09-28
Date Deposited:1997


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