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Comparison and differentiation in fossil and recent specimens of the melongenid subgenus Rexmela in Florida
| Title: | Comparison and differentiation in fossil and recent specimens of the melongenid subgenus Rexmela in Florida. |
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| Name(s): |
Pletka, Crystal. Charles E. Schmidt College of Science Department of Geosciences |
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| Type of Resource: | text | |
| Genre: | Electronic Thesis Or Dissertation | |
| Date Issued: | 2009 | |
| Publisher: | Florida Atlantic University | |
| Physical Form: | electronic | |
| Extent: | x, 96 p. : ill. (some col.). | |
| Language(s): | English | |
| Summary: | The subgenus Rexmela, located primarily in Florida, is newly evolved, dating back 1.6 million years, first occurring in the Ayer's Landing Member of the Caloosahatchee Formation. This subgenus has highly variably shell morphology and has led to the erection of several species and subspecies. In order to provide a quantitative methodology with which to differentiate between populations, samples of Recent and fossil populations were collected and measured for a variety of parameters. The parameters measured included length, width, spire height, and several angles, and allowed for a discriminate analysis to be completed. The analysis supported the distinction of several of the populations as ecophenotypes. Paleoenvironments of the fossil populations were then recreated using analogues of Recent populations. | |
| Identifier: | 320764237 (oclc), 187215 (digitool), FADT187215 (IID), fau:2937 (fedora) | |
| Note(s): |
by Crystal Pletka. Thesis (M.S.)--Florida Atlantic University, 2009. Includes bibliography. Electronic reproduction. Boca Raton, Fla., 2009. Mode of access: World Wide Web. |
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| Subject(s): |
Mollusks -- Habitat -- Florida Gastropoda, Fossil -- Florida Aquatic invertebrates -- Florida -- Identification Evolutionary paleobiology -- Florida |
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| Persistent Link to This Record: | http://purl.flvc.org/FAU/187215 | |
| Use and Reproduction: | http://rightsstatements.org/vocab/InC/1.0/ | |
| Host Institution: | FAU |
