Primitive jaw structure in an articulated brachythoracid arthrodire (placoderm fish: Early Devonian) from southeastern Australia
A unique 'buchanosteid' arthrodire specimen from Emsian limestones at Burrinjuck represents the complete articulated remains of the head and cheek, and most of the trunk armor bones from a single fish, together with well-ossified braincase and jaw cartilages. The structure of the toothplates and jaws are described, and compared with primitive brachythoracid material from Saudi Arabia of similar age. Both the palatoquadrate and meckelian cartilages are well preserved, and perichondrally ossified...[Show more]
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|Source:||Journal of Vertebrate Paleontology|
|01_Young_Primitive_jaw_structure_in_an_2001.pdf||1.56 MB||Adobe PDF||Request a copy|
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