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Select Devonian Proetid Trilobites of southern Morocco

Posted on:2013-08-29Degree:M.ScType:Thesis
University:University of Alberta (Canada)Candidate:Molinaro, DarrinFull Text:PDF
GTID:2450390008484497Subject:Geology
Abstract/Summary:
The Tropidocoryphinae and Cornuproetinae represent two subfamilies of proetid trilobites (Class Trilobita, Order Proetida) found throughout the Lower and Middle Devonian of southern Morocco's Anti-Atlas region. Surveys of the various trilobite-bearing horizons within three separate Moroccan basins have yielded a diverse and well preserved collection of genera from both subfamilies. Given the exceptional (complete and articulated) nature of the specimens, systematic description and cladistic analysis, in conjunction with previously described Moroccan and Central European species of the two subfamilies, was undertaken. In total, one new genus (Pontoproetus) and 11 new species (Astycotyphe ditropidia, Tropidocoryphe taharajatensis, T. lahfirensis, T. sculptaridgiata, Diademaproetus rudimentus, D. issoumourensis, D. corrugatus, D. auxiliairus, D. langus, Pontoproetus truncatus, and P. granulosus) are described and the relationships of Tropidocoryphe-Astycotyphe and Cornuproetus-Diademaproetus-Pontoproetus are discussed.
Keywords/Search Tags:Proetid trilobites, Two subfamilies
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