Results 141 to 150 of about 696 (179)

Evolutionary pathway and genetic mechanisms of fin-to-limb transition in vertebrates. [PDF]

Front Cell Dev Biol
Bayramov AV, Mednikov DN, Zaraisky AG.
europepmc   +1 more source

A Mechanical Approach for Comparing Jaws in Fishes. [PDF]

Biomimetics (Basel)
Trotta F, Sandulli R, Cinquemani S.
europepmc   +1 more source

CO-OPTION OF NECK MUSCLES SUPPORTED THE VERTEBRATE WATER-TO-LAND TRANSITION

Heude E, Dutel H, Sanchez-Garrido F, Prummel KD, Lalonde R, Lam F, Mosimann C, Herrel A, Tajbakhsh S.   +8 more
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A review of placoderm scales, and their significance in placoderm phylogeny

Journal of Vertebrate Paleontology, 1999
An historical review of the literature relating to placoderm scales preserved in association with articulated dermal plates, or as isolated units in microvertebrate assemblages, is followed by a discussion of their relevance in phylogenetic analyses of the Placodermi.
Carole J. Burrow, Susan Turner
exaly   +5 more sources

The relationships of placoderm fishes

Zoological Journal of the Linnean Society, 1986
Gavin C. Young
exaly   +2 more sources

Paleontology: There are more placoderms in the sea

Current Biology, 2021
Fossil fish from the Silurian of China continue to surprise. These so-called 'maxillate placoderms', including the newly described Bianchengichthys micros, show a range of anatomical features that question our picture of vertebrate evolution and diversification.
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Pelvic and reproductive structures in placoderms (stem gnathostomes)

Biological Reviews, 2014
ABSTRACTNewly discovered pelvic and reproductive structures within placoderms, representing some of the most crownward members of the gnathostome stem group and the most basal jawed vertebrates, challenge established ideas on the origin of the pelvic girdle and reproductive complexity.
Trinajstic, Katherine, Boisvert, C., Long, J., Maksimenko, A., Johanson, Z.   +4 more
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Placoderms

Current Biology
For over 70 million years, during the Paleozoic, the placoderms (Greek for 'plated skin'), an extinct group of armoured fishes, were the most abundant and diverse vertebrates on our planet. Some of the first placoderm fossils discovered - such as Bothriolepis with its bone-covered pectoral fins - seemed so bizarre that they were thought to represent ...
John A, Long, Kate, Trinajstic
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Exceptional preservation of organs in Devonian placoderms from the Gogo lagerstätte

Science, 2022
The origin and early diversification of jawed vertebrates involved major changes to skeletal and soft anatomy. Skeletal transformations can be examined directly by studying fossil stem gnathostomes; however, preservation of soft anatomy is rare. We describe the only known example of a three-dimensionally mineralized heart, thick-walled stomach, and ...
Kate Trinajstic, John A. Long, Sophie Sanchez, Catherine A. Boisvert, Daniel Snitting, Paul Tafforeau, Vincent Dupret, Alice M. Clement, Peter D. Currie, Brett Roelofs, Joseph J. Bevitt, Michael S. Y. Lee, Per E. Ahlberg   +12 more
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Further consideration of placoderm evolution

Journal of Vertebrate Paleontology, 1983
ABSTRACT The flight performances of Pteranodon ingens and Nyctosaurus gracilis from the Upper Cretaceous of Kansas were modeled using data from a Sailvane hang-glider which has an airfoil similar to that of a pterosaur. The aerodynamics of large pterosaurs were mainly dictated by three parameters: low wing loadings, wings with high aspect ratios, and ...
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