Imperial College London

Dr. Martin D. Brazeau

Faculty of Natural SciencesDepartment of Life Sciences (Silwood Park)

Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 2254m.brazeau

 
 
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Location

 

W2.2KennedySilwood Park

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Summary

 

Publications

Citation

BibTex format

@article{Brazeau:2015:10.1098/rspb.2015.2210,
author = {Brazeau, MD and de, Winter V and Brazeau, MD and de, Winter V and Brazeau, MD and de, Winter V and Brazeau, MD and de, Winter V and Brazeau, MD and de, Winter V},
doi = {10.1098/rspb.2015.2210},
journal = {PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES},
pages = {20152210--20152210},
title = {The hyoid arch and braincase anatomy of Acanthodes support chondrichthyan affinity of 'acanthodians'},
url = {http://dx.doi.org/10.1098/rspb.2015.2210},
volume = {282},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Solving the evolutionary relationships of the acanthodians is one of the key problems in reconstructing ancestral anatomical conditions for the jawed vertebrates (gnathostomes). Current debate concerns whether acanthodians are an assemblage of stem chondrichthyans, or a more generalized grade encompassing some early stem osteichthyans. The skull anatomy of Acanthodes bronni has been pivotal in these debates, owing to tension between chondrichthyan- and osteichthyan-like models of reconstruction. We use computed tomography scanning and traditional palaeontological techniques to resolve the long-standing debate about the anatomy of the jaw suspension. We establish the correct length of the hyomandibula and show that it attaches to a process on the ventrolateral angle of the braincase below the jugular vein groove. This condition corresponds precisely to that in chondrichthyans. This character represents an unambiguously optimized synapomorphy with chondrichthyans given current gnathostome phylogenies, corroborating the growing consensus of the chondrichthyan affinity of acanthodians.
AU - Brazeau,MD
AU - de,Winter V
AU - Brazeau,MD
AU - de,Winter V
AU - Brazeau,MD
AU - de,Winter V
AU - Brazeau,MD
AU - de,Winter V
AU - Brazeau,MD
AU - de,Winter V
DO - 10.1098/rspb.2015.2210
EP - 20152210
PY - 2015///
SN - 0962-8452
SP - 20152210
TI - The hyoid arch and braincase anatomy of Acanthodes support chondrichthyan affinity of 'acanthodians'
T2 - PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
UR - http://dx.doi.org/10.1098/rspb.2015.2210
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000368096900024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/28110
VL - 282
ER -