Vegetational Patterns in the Herrin and Springfield Coals (Middle Pennsylvanian of Illinois), Based on Miospore Profiles With Comparison to Coal-Ball Patterns

Miospore distribution patterns suggest differences in some ecological requirements of their source plants. One of the major tree-fern miospores, Thymospora, shows a pattern different than some of the other tree-fern miospores, especially at Sahara where it rises to second in abundance in the top zone at 29%. Thymospora is less abundant (less than 16%) in the two most complete profiles from Old Ben, but at both localities shows less rapid changes in abundance than two other Psaronius miospores. Perhaps the tree fern that produced Thymospora occupied less disturbed sites.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Plant Biology

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Mahaffy, James Francis

Contributors dc:contributor

• Tom L. Phillips

• Geology

Language dc:language

eng

Identifier

(MiAaPQ)AAI9921712

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/87069