A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>

A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>

Bibliographic Details
Main Author: Bauer, Jennifer E.
Language:English
Published: Ohio University / OhioLINK 2014
Subjects:
Paleontology
Geology
Phylogenetics
multivariate analysis
phylogenetic biogeography
brachiopod systematics
Late Ordovician
sowerbyellid
Richmondian Invasion
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1397486053
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou13974860532021-08-03T06:23:49Z A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i> Bauer, Jennifer E. Paleontology Geology Phylogenetics multivariate analysis phylogenetic biogeography brachiopod systematics Late Ordovician sowerbyellid Richmondian Invasion Systematic revision of the Late Ordovician brachiopod genus <i>Eochonetes</i> was conducted utilizing multivariate analyses and a species-level phylogenetic analysis. <i>Thaerodonta</i> has been previously synonymized with <i>Eochonetes</i>; multivariate and phylogenetic analyses support the synonymy of the two genera. The multivariate analyses allowed delineation of species in morphospace and phylogenetic analysis was used to establish evolutionary relationships among species. Three species which were previously in open nomenclature were described and recognized as valid, these include: <i>Eochonetes maearum</i>, <i>E. minerva</i>, and <i>E. voldemortus</i>. The resulting phylogenetic hypothesis was then utilized to reconstruct biogeographic patterns and speciation mode at cladogenetic events within the genus. Phylogenetic biogeographic analysis of <i>Eochonetes</i> and additional Ordovician brachiopod genera was conducted to uncover large-scale geologic drivers of faunal diversification. Area cladograms indicate oceanographic patterns were the main geologic driver of biogeographic patterns within the focal taxa. Furthermore, the Taconic tectophase contributed to the separation of the Appalachian and Central Basins as well as the two Midcontinent Basins. Four migration pathways into the Cincinnati Basin were recognized, further supporting the multidirectional pathway hypothesis for the Richmondian Invasion. 2014-06-09 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1397486053 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1397486053 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Paleontology
Geology
Phylogenetics
multivariate analysis
phylogenetic biogeography
brachiopod systematics
Late Ordovician
sowerbyellid
Richmondian Invasion
spellingShingle Paleontology
Geology
Phylogenetics
multivariate analysis
phylogenetic biogeography
brachiopod systematics
Late Ordovician
sowerbyellid
Richmondian Invasion
Bauer, Jennifer E.
A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>
author Bauer, Jennifer E.
author_facet Bauer, Jennifer E.
author_sort Bauer, Jennifer E.
title A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>
title_short A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>
title_full A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>
title_fullStr A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>
title_full_unstemmed A Phylogenetic and Paleobiogeographic Analysis of the Ordovician Brachiopod <i>Eochonetes</i>
title_sort phylogenetic and paleobiogeographic analysis of the ordovician brachiopod <i>eochonetes</i>
publisher Ohio University / OhioLINK
publishDate 2014
url http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1397486053
work_keys_str_mv AT bauerjennifere aphylogeneticandpaleobiogeographicanalysisoftheordovicianbrachiopodieochonetesi
AT bauerjennifere phylogeneticandpaleobiogeographicanalysisoftheordovicianbrachiopodieochonetesi
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