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Phylogeny, Histology and Inferred Body Size Evolution in a New Rhabdodontid Dinosaur from the Late Cretaceous of Hungary
Rhabdodontid remains from the Santonian of western Hungary provide evidence for a new, small-bodied form, which is assigned to Mochlodon vorosi n.
New Interpretation of the Palate of Pterosaurs
It is indicated that in basal pterosaurs the pterygo–ectopterygoid fenestra existed caudal to the suborbital fenESTra, which became confluent with the adductor chamber in pterodactyloids thereby increasing the relative size of the adduction chamber and hence the mass of the jaw adductors.
Life History of Rhamphorhynchus Inferred from Bone Histology and the Diversity of Pterosaurian Growth Strategies
The initial rapid growth phase early in Rhamphorhynchus ontogeny supports the non-volant nature of its hatchlings, and refutes the widely accepted ‘superprecocial hatchling’ hypothesis.
Development-based revision of bone tissue classification: the importance of semantics for science
A new approach of bone tissue classification and description that is congruent with the current understanding of bone as a living tissue, emphasizing its developmental aspects is suggested, namely ‘woven-parallel complex’.
New pterosaurian remains from the late cretaceous (santonian) of hungary (iharkút, csehbánya formation)
Abstract The Late Cretaceous (Santonian) continental vertebrate locality of Iharkut, western Hungary has provided numerous azhdarchid pterosaur remains including the recently described, Bakonydraco…
The pterosaurian remains from the Grünbach Formation (Campanian, Gosau Group) of Austria: a reappraisal of ‘Ornithocheirus buenzeli’
Abstract The fragmentary pterosaur material from the Campanian Grünbach Formation (Gosau Group) of Muthmannsdorf (Austria), previously identified as Ornithocheirus buenzeli Bunzel, 1871, is revised.…
Structure and evolutionary implications of the earliest (Sinemurian, Early Jurassic) dinosaur eggs and eggshells
- Koen Stein, E. Prondvai, Timothy Huang, J. Baele, P. M. Sander, R. Reisz
- Medicine, GeologyScientific Reports
- 14 March 2019
Phylogenetic analyses and their Sinemurian age indicate that the thin egg shell of basal sauropodomorphs represents a major evolutionary innovation at the base of Dinosauria and that the much thicker eggshell of sauropods, theropods, and ornithischian dinosaurs evolved independently.
Rethinking the nature of fibrolamellar bone: an integrative biological revision of sauropod plexiform bone formation
- Koen Stein, E. Prondvai
- Biology, MedicineBiological reviews of the Cambridge Philosophical…
- 1 February 2014
We present novel findings on sauropod bone histology that cast doubt on general palaeohistological concepts concerning the true nature of woven bone in primary cortical bone and its role in the rapid…
Medullary bone in fossils: function, evolution and significance in growth curve reconstructions of extinct vertebrates
- E. Prondvai
- Biology, MedicineJournal of evolutionary biology
- 1 March 2017
This study discusses the primary role, distribution, regulation and adaptive significance of avian MB to point out important but largely overlooked uncertainties and inconsistencies in this matter and proposes new directions of research on the origin and functional evolution of this curious bone tissue.
Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia)*
Qualitative and quantitative analysis of feeding characters reveal at least three different jaw mechanisms during the evolution of Ankylosauria, and a progressive widening of the muzzle is demonstrated both in Late Cretaceous North American and Asian ankylosaurs.