Results 71 to 80 of about 1,576 (193)

Intraorganismal Homology, Character Construction, and the Phylogeny of Aetosaurian Archosaurs (Reptilia, Diapsida) [PDF]

Systematic Biology, 2003
Character construction, the methods by which characters and character states are produced from observations of variation, is a crucial but poorly understood step in phylogenetic analysis. Alternative approaches are used in practice, but there has been relatively little investigation of their theoretical bases and analytical consequences.
Harris, SR, Gower, David J, Wilkinson, M
openaire   +3 more sources

A new species of Garjainia Ochev, 1958 (Diapsida: Archosauriformes: Erythrosuchidae) from the Early Triassic of South Africa. [PDF]

PLoS ONE, 2014
A new species of the erythrosuchid archosauriform reptile Garjainia Ochev, 1958 is described on the basis of disarticulated but abundant and well-preserved cranial and postcranial material from the late Early Triassic (late Olenekian) Subzone A of the ...
David J Gower, P John Hancox, Jennifer Botha-Brink, Andrey G Sennikov, Richard J Butler   +4 more
doaj   +1 more source

Discrete and continuous character-based disparity analyses converge to the same macroevolutionary signa. A case study from captorhinids [PDF]

, 2017
The relationship between diversity and disparity during the evolutionary history of a clade provides unique insights into evolutionary radiations and the biological response to bottlenecks and to extinctions.
Brocklehurst, Neil, Fröbisch, Jörg, Romano, Marco   +2 more
core   +2 more sources

A NEW PROLACERTIFORM REPTILE FROM THE LATE TRIASSIC OF NORTHERN ITALY

Rivista Italiana di Paleontologia e Stratigrafia, 2017
A new diapsid reptile is described from the locality of Cene (Seriana Valley, near Bergamo, Lombardy, Northern ltaly) from an outcrop of the Calcare di Zorzino (Zorzino Limestone) Formation (Middle Norian, Late Triassic).
SILVIO RENESTO
doaj   +1 more source

Preliminary observations on the bone histology of the Middle Triassic pseudosuchian archosaur Batrachotomus kupferzellensis reveal fast growth with laminar fibrolamellar bone tissue [PDF]

, 2017
The bone tissue of femur, rib, and gastralia from three different individuals of the Middle Triassic pseudosuchian Batrachotomus kupferzellensis from southern Germany is studied.
Foth, Christian, Klein, Nicole, Schoch, Rainer R.   +2 more
core   +1 more source

The neodiapsid Thadeosaurus colcanapi from the upper Permian of Madagascar

Papers in Palaeontology, Volume 11, Issue 2, March/April 2025.
Abstract The enigmatic neodiapsid Thadeosaurus colcanapi (Lower Sakamena Formation, southwestern Madagascar), sole species of the genus Thadeosaurus, is revised here. The attribution of 12 of the 21 referred specimens is confirmed, spanning all ontogenetic stages, and the anatomy of Thadeosaurus is redescribed in detail with comments on ontogenetical ...
Valentin Buffa, Nour‐Eddine Jalil, Jocelyn Falconnet, Peggy Vincent   +3 more
wiley   +1 more source

EVIDENCES FOR A SEMI AQUATIC LIFE STYLE IN THE TRIASSIC DIAPSID REPTILE TANYSTROPHEUS

Rivista Italiana di Paleontologia e Stratigrafia, 2018
The paleoecology of the bizarre, long-necked tanystropheid diapsid Tanystropheus from the Middle and Late Triassic of Western and Eastern Tethys has been debated since the first discoveries.
SILVIO RENESTO, FRANCO SALLER
doaj   +1 more source

The higher-level phylogeny of Archosauria (Tetrapoda:Diapsida) [PDF]

, 2010
Crown group Archosauria, which includes birds, dinosaurs, crocodylomorphs, and several extinct Mesozoic groups, is a primary division of the vertebrate tree of life.
Arcucci A., Arcucci A., Ballew K. L., Barberena M. C., Bennett S. C., Benton M. J., Benton M. J., Benton M. J., Bonaparte J. F., Bonaparte J. F., Bonaparte J. F., Bonaparte J. F., Brinkman D., Broom R., Broom R., Brusatte S. L., Busbey A. B., Charig A. J., Charig A. J., Chatterjee S., Chatterjee S., Chatterjee S., Colbert E. H., Colbert E. H., Colbert E. H., Colbert E. H., Cope E. D., Cruickshank A. R. I., Crush P. J., Dawley R. M., Ezcurra M. D., Galton P. M., Galton P. M., Galton P. M., Galton P. M., Galton P. M., Gauthier J. A., Gebauer E. V. I., Gower D. J., Gower D. J., Gower D. J., Gower D. J., Gower D. J., Gregory J. T., Hallam A., Heckert A. B., Hone D. W. E., Huene F. von, Huene F. von, Hungerbühler A., Hunt A. P., Hunt A. P., Joyce W., Julia B. Desojo, Juul L., Krebs B., Krebs B., Krebs B., Krebs B., Langer M. C., Long R. A., Max C. Langer, McGregor J. H., Meyer H. von, Michael J. Benton, Moser M., Nesbitt S. J., Norman D. B., Novas F. E., Novas F. E., Osborn H. F., Osborn H. F., Owen R., Padian K., Parker W. G., Parrish J. M., Parrish J. M., Peters D., Pinna G., Rauhut O. W. M., Reig O. A., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Santa Luca A. P., Santa Luca A. P., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Shubin N. H., Sill W. D., Sill W. D., Simms M. J., Stephen L. Brusatte, Swofford D. L., Thulborn R. A., Thulborn R. A., Tykoski R. S., Weinbaum J. C., Welles S. P., Wild R., Wilkinson M., Wroblewski A. F.-J., Young C. C., Zhang F. K.   +114 more
core   +1 more source

Seazzadactylus venieri gen. et sp. nov., a new pterosaur (Diapsida: Pterosauria) from the Upper Triassic (Norian) of northeastern Italy [PDF]

PeerJ, 2019
A new non-monofenestratan pterosaur with multicusped dentition, Seazzadactylus venieri, is described from the Upper Triassic (middle-upper Norian) of the Carnian Prealps (northeastern Italy). The holotype of S. venieri preserves a complete mandibular and
Fabio Marco Dalla Vecchia
doaj   +2 more sources

Challenges in identifying and interpreting organizational modules in morphology [PDF]

, 2017
Form is a rich concept that agglutinates information about the proportions and topological arrangement of body parts. Modularity is readily measurable in both features, the variation of proportions (variational modules) and the organization of topology ...
Esteve-Altava, B
core   +1 more source