Systemic distribution of medullary bone in the avian skeleton: ground truthing criteria for the identification of reproductive tissues in extinct Avemetatarsalia
Abstract Background Medullary bone (MB) is an estrogen-dependent, sex-specific tissue produced by female birds during lay and inferred to be present in extinct avemetatarsalians (bird-line archosaurs). Although preliminary studies suggest that MB can be deposited within most skeletal elements, these...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2019-03-01
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Series: | BMC Evolutionary Biology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12862-019-1402-7 |