Another look at tarsometatarsi of early penguins

Abstract The tarsometatarsus, a compound bone from the lower leg in birds, is the most important skeletal element in fossil penguin taxonomy, especially in the case of early members of this group. However, any attempt to go beyond the problem of mere classification obviously requires the better unde...

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Bibliographic Details
Published in:Polish Polar Research
Main Author: Jadwiszczak, Piotr
Format: Article in Journal/Newspaper
Language:unknown
Published: Walter de Gruyter GmbH 2015
Subjects:
Online Access:http://dx.doi.org/10.1515/popore-2015-0024
http://content.sciendo.com/view/journals/popore/36/4/article-p343.xml
https://www.degruyter.com/view/j/popore.2015.36.issue-4/popore-2015-0024/popore-2015-0024.pdf
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Summary:Abstract The tarsometatarsus, a compound bone from the lower leg in birds, is the most important skeletal element in fossil penguin taxonomy, especially in the case of early members of this group. However, any attempt to go beyond the problem of mere classification obviously requires the better understanding of osteological traits under consideration. This in turn touches on the issue of interplay between bone and concomitant soft-tissue structures, such as muscles, tendons and vessels. This paper focuses on the more holistic comprehension of the tarsometatarsal section of the Eocene penguin foot, based on the analysis of the myology and the vascular system of its modern counterparts. A number of graphical reconstructions are provided with a discussion of the role of the hypotarsus and intermetatarsal foramina.