2026-09-19T15:42:46Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/86548 2023-07-11 col_2142_5131 col_2142_16322 com_2142_5130 com_2142_16321 com_2142_13459 com_2142_8903

Blake, D.B. Holdener, Eric James 2015-09-28T15:12:36Z 2015-09-28T15:12:36Z 10000-01-01 1997 1997 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. Made available in DSpace on 2015-09-28T15:12:36Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9812620.pdf: 12939176 bytes, checksum: 5a1edeebee21a25aad59da48b7fbbefe (MD5) Previous issue date: 1997 Embargo set by: Seth Robbins for item 87829 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 262 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1997. http://hdl.handle.net/2142/86548 (MiAaPQ)AAI9812620 eng Paleozoology Morphometric Approaches to Analysis of Microevolution: Morphologic Variation in Paleozoic Bryozoa text Geology Geology University of Illinois at Urbana-Champaign Dissertation Ph.D.