Results 51 to 60 of about 598 (186)

Figure 6 in Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from the rauisuchian Batrachotomus kupferzellensis [PDF]

open access: yes, 2002
Figure 6. Batrachotomus kupferzellensis Gower. Dorsal part of braincase of SMNS 80260 in anterior view. Scale bar = 30 mm.Published as part of Gower, David J., 2002, Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from the ...
Gower, David J.
core   +1 more source

Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from the rauisuchian Batrachotomus kupferzellensis [PDF]

open access: yes, 2002
Gower, David J. (2002): Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from the rauisuchian Batrachotomus kupferzellensis. Zoological Journal of the Linnean Society 136 (1): 49-76, DOI: 10.1046/j.1096-3642.2002.00025.x, URL ...
Gower, David J., David J. Gower
core   +1 more source

Figure 3 in Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from the rauisuchian Batrachotomus kupferzellensis [PDF]

open access: yes, 2002
Figure 3. Batrachotomus kupferzellensis Gower. Ventral part of braincase of SMNS 80260 in right posterolateral view. Scale bar in mm.Published as part of Gower, David J., 2002, Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from
Gower, David J.
core   +1 more source

Rhynchocephalians (Diapsida: Lepidosauria) from the Jurassic Kota Formation of India [PDF]

open access: yesZoological Journal of the Linnean Society, 2001
Despite their rarity today, rhynchocephalians formed a diverse Early Mesozoic clade with a comparatively good fossil record. They had a Pangaean distribution in the Late Triassic and Early Jurassic, although the Gondwanan record remains more limited than the Laurasian one. We report here on new sphenodontian material from the Jurassic Kota Formation of
S. E. EVANS   +2 more
openaire   +2 more sources

First records of diapsid Palacrodon from the Norian, Late Triassic Chinle Formation of Arizona, and their biogeographic implications [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Vertebrates from the Triassic Period have broadly disparate tooth shapes and dentition patterns, the result of intense morphospace experimentation following the Permo-Triassic extinction.
Ben T. Kligman   +2 more
doaj   +1 more source

FIRST SKELETAL REMAINS OF HELVETICOSAURUS FROM THE MIDDLE TRIASSIC ITALIAN OUTCROPS OF THE SOUTHERN ALPS, WITH REMARKS ON AN ISOLATED TOOTH

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2022
The enigmatic marine reptile Helveticosaurus zollingeri, from the Middle Triassic Besano Formation of Monte San Giorgio, is known from three specimens found in Swiss territory. This paper describes the first skeletal remains of this taxon recovered from
Gabriele Bindellini, CRISTIANO DAL SASSO
doaj   +1 more source

Molecular anatomy of emerging Xenopus left-right organizer at successive developmental stages. [PDF]

open access: yesDev Dyn
Abstract Background Vertebrate left–right symmetry breaking is preceded by formation of left–right organizer. In Amphibian, this structure is formed by gastrocoel roof plate, which emerges from superficial suprablastoporal cells. GRP is subdivided into medial area, which generates leftward flow by rotating monocilia and lateral Nodal1 expressing areas,
Petri N   +3 more
europepmc   +2 more sources

Figure 1 in Braincase evolution in suchian archosaurs (Reptilia: Diapsida): evidence from the rauisuchian Batrachotomus kupferzellensis [PDF]

open access: yes, 2002
Figure 1. Batrachotomus kupferzellensis Gower. Ventral part of braincase of SMNS 80260 in posterior view. Scale bar = 30 mm mpr = median pharyngeal recess.Published as part of Gower, David J., 2002, Braincase evolution in suchian archosaurs (Reptilia ...
Gower, David J.
core   +1 more source

Dimorfismo sexual en la proporción entre el segundo y cuarto digito (2D/4D) de Gonatodes albogularis (Gekkonidae) en Colombia

open access: yesPapéis Avulsos de Zoologia, 2011
La proporción entre el segundo y cuarto dígito (2D/4D) ha sido bien estudiada como un dimorfismo sexual que puede resultar de los efectos androgénicos prenatales sobre la expresión de los genes homeobox.
Mauricio Peñuela
doaj   +1 more source

Osteohistology of hyperodapedontine rhynchosaurs from the Upper Triassic of Southern Brazil [PDF]

open access: yesActa Palaeontologica Polonica, 2015
The first osteohistological study focused exclusively on rhynchosaurs (non-archosauriform archosauromorphs), based on the hyperodapedontines Teyumbaita sulcognathus and Hyperodapedon sp., from the Upper Triassic of Southern Brazil, indicates a relatively
Fábio Hiratsuka Veiga   +2 more
doaj   +1 more source

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