Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks

Bibliographic Details
Main Author:	Mitchell, Michaela Grace
Language:	English
Published:	Wright State University / OhioLINK 2016
Subjects:	Paleontology Morphology Evolution and Development paleontology morphology evolution and development
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=wright1478543402652077

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-wright14785434026520772021-08-03T06:38:56Z Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks Mitchell, Michaela Grace Paleontology Morphology Evolution and Development paleontology morphology evolution and development The basking shark (Cetorhinus maximus) and megamouth shark (Megachasma pelagios) are two species of filter feeding sharks, both belonging to the order Lamniformes. There are two conflicting hypotheses regarding the origins of filter feeding in Lamniform sharks; that there is a single origin of filter feeding within Lamniformes, or conversely, the filter feeding adaptations have been developed independently due to different ancestral conditions. Evidence obtained from several studies strongly supports the latter hypothesis. Because evidence suggests that C. maximus and M. pelagios have developed their filter feeding adaptations independently, we expect to see convergent evolution taking place within these two lineages. Geometric morphometric analyses were performed on fossil and Recent teeth of megamouth and basking sharks to determine if there is commonality among tooth shape. The results of the analyses support independently derived filter feeding morphologies and convergent evolution within these two lineages. 2016 English text Wright State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=wright1478543402652077 http://rave.ohiolink.edu/etdc/view?acc_num=wright1478543402652077 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 Morphology Evolution and Development paleontology morphology evolution and development
spellingShingle	Paleontology Morphology Evolution and Development paleontology morphology evolution and development Mitchell, Michaela Grace Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks
author	Mitchell, Michaela Grace
author_facet	Mitchell, Michaela Grace
author_sort	Mitchell, Michaela Grace
title	Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks
title_short	Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks
title_full	Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks
title_fullStr	Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks
title_full_unstemmed	Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks
title_sort	convergent evolution in tooth morphology of filter feeding lamniform sharks
publisher	Wright State University / OhioLINK
publishDate	2016
url	http://rave.ohiolink.edu/etdc/view?acc_num=wright1478543402652077
work_keys_str_mv	AT mitchellmichaelagrace convergentevolutionintoothmorphologyoffilterfeedinglamniformsharks
_version_	1719441191099957248

Convergent Evolution in Tooth Morphology of Filter Feeding Lamniform Sharks

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