[dinosaur] Turtle body plan origin: evidence from fossils and embryos (free pdf)

Ben Creisler
[email protected]


A new paper with free pdf:
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Rainer R. Schoch  & Hans‐Dieter Sues (2019)
The origin of the turtle body plan: evidence from fossils and embryos.
Palaeontology (advance online publication)
doi:  https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1111_pala.12460&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=D8L-umgwh5t-Q_pzDqK4Yc28w7jHOccSJyYesubNVlM&s=RIXD4wQtdgiqrZvyIZV-uc8LaAh10mtu8F3Ocx4ogf0&e= 
https://urldefense.proofpoint.com/v2/url?u=https-3A__onlinelibrary.wiley.com_doi_full_10.1111_pala.12460&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=D8L-umgwh5t-Q_pzDqK4Yc28w7jHOccSJyYesubNVlM&s=mG3gEEYLZurDdtykBijwcvA943BwlmEXHEPSNObbOPs&e= 

Free pdf:
https://urldefense.proofpoint.com/v2/url?u=https-3A__onlinelibrary.wiley.com_doi_pdf_10.1111_pala.12460&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=D8L-umgwh5t-Q_pzDqK4Yc28w7jHOccSJyYesubNVlM&s=Uwt1JB78dtqrZHa8NZpMJPcJNiy9H2BOjtzrWBWMJM8&e= 


The origin of the unique body plan of turtles has long been one of the most
intriguing mysteries in evolutionary morphology. Discoveries of several new
stem‐turtles, together with insights from recent studies on the development
of the shell in extant turtles, have provided crucial new information
concerning this subject. It is now possible to develop a comprehensive
scenario for the sequence of evolutionary changes leading to the formation
of the turtle body plan within a phylogenetic framework and evaluate it in
light of the ontogenetic development of the shell in extant turtles. The
fossil record demonstrates that the evolution of the turtle shell took
place over millions of years and involved a number of steps.