Results 41 to 50 of about 877 (172)

EVOLUTIONARY TRENDS IN TRIASSIC DICYNODONTIA [PDF]

open access: yes, 1974
Triassic Dicynodontia differ from most of their Permian ancestors in a number of specialisations that reach extremes in the Upper Triassic. These are ( 1) increase in total body size, (2) increase in the relative length of the snout and secondary ...
Keyser, A. W.
core  

Biological aspects of the Permian dicynodont Oudenodon (Therapsida: Dicynodontia) deduced from bone histology and cross-sectional geometry [PDF]

open access: yes, 2003
Main articleBone histology and cross-sectional geometry were used to examine the growth patterns and lifestyle habits of the Late Permian dicynodont, Oudenodon.
Botha, Jennifer
core  

A comparison of the palates of Permian and Triassic dicynodonts [PDF]

open access: yes, 1968
Main articleWhilst comparing the skulls of some Triassic dicynodonts with Permian members of the family, it was noted that the interpterygoid space in the former is consistently smaller than in the latter (Cruickshank 1965: 1967).
Cruickshank, A. R.
core  

Effective dispersal of fern spore and the ecological relevance of zoochory

open access: yesBiological Reviews, Volume 100, Issue 5, Page 2116-2130, October 2025.
ABSTRACT The mechanisms of fern dispersal are under‐studied and there are few data to support the vectors assumed to drive patterns of sporophyte occurrence and speciation. Although wind is generally the fern spore dispersal vector described in the literature, there has always been competing evidence supporting alternate vectors.
James M. R. Brock
wiley   +1 more source

Dicynodonts and the end Permian event [PDF]

open access: yes, 1990
Patterns of diversity changes in several groups of Late Permian South African terrestrial tetrapods are examined. Using data contained in Kitching (1977), histograms are presented which illustrate changes in a) total number of tetrapod genera per ...
King, Gilian M
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XII. On the structure of the Dicynodont skull [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1916
We propose in this communication to supplement our previous account of the Dicynodon ( D. leoniceps ? ) skull by some observations on another specimen of unknown species, for which we are indebted, through the kind offices of Dr. Smith Woodward, to the generosity of the Trustees of the British Museum.
openaire   +1 more source

The neodiapsid Thadeosaurus colcanapi from the upper Permian of Madagascar

open access: yesPapers 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   +3 more
wiley   +1 more source

Origin of ferruginous coated grains in the Lower Jurassic palustrine limestones of the Pranhita–Godavari Basin, India

open access: yesThe Depositional Record, Volume 11, Issue 1, Page 44-69, February 2025.
In this article, we have proposed a model for the origin of ferruginous coated grains in a continental rift setting. The association of these iron coated grains with limestones and sub‐aerially weathered microbialites have made them suitable for a comparative assessment of various hypotheses of solute supply and precipitation, which can be relevant for
Shantanu Datta   +4 more
wiley   +1 more source

Redescription of three basal anomodonts: a phylogenetic reassessment of the holotype of Eodicynodon oelofseni (NMQR 2913)

open access: yesFrontiers in Earth Science
The Dicynodontia (Therapsida: Anomodontia) is one of the most successful Permo-Triassic terrestrial tetrapod clades and the oldest specimens are recorded from the middle Permian Eodicynodon Assemblage Zone of South Africa. Their fossil record is abundant
Alienor Duhamel   +5 more
doaj   +1 more source

A new specimen of Dicynodon traquairi (Newton) (Synapsida: Anomodontia) from the Late Permian (Tartarian) of northern Scotland [PDF]

open access: yes, 2005
A recently discovered natural mould of a complete, almost undistorted, skull and lower jaw of a dicynodont (c. 237mmoverall length), in a block of Upper Permian sandstone (= Dicynodon Assemblage Zone: Hopeman Sandstone Formation) from Clashach Quarry ...
Adams, Calum   +2 more
core  

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