Morphometric Approaches to Analysis of Microevolution: Morphologic Variation in Paleozoic Bryozoa

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.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Geology

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Holdener, Eric James

Contributors dc:contributor

• Blake, D.B.

• Paleozoology

Language dc:language

eng

Identifier

(MiAaPQ)AAI9812620

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/86548