Results 81 to 90 of about 2,538 (164)
In this study, we used fluorochrome labels in captive leopard geckos (Eublepharis macularius) to track bone growth and intraskeletal variability from embryonic to adult growth stages. Overall, the tibia in leopard geckos is the least reliable limb bone to use for skeletochronology and the humerus, radius, and fibula preserve the longest growth record ...
Sierra C. Schlief +2 more
wiley +1 more source
Teeth from the Middle Jurassic of Morocco reveal the oldest turiasaurian sauropods from Africa [PDF]
Readily identifiable based on their large, “spatulate” teeth with diagnostic “heart”-shaped crowns, turiasaurians are non-neosauropodan eusauropods known from varied Jurassic and Cretaceous formations across Laurasia and Gondwana.
D. Cary Woodruff +11 more
doaj +1 more source
Abstract Ornithopods are an extinct group of dinosaurs that were particularly abundant and diverse in the Cretaceous of the Iberian Peninsula, and whose abundance in the Maestrazgo Basin has allowed numerous taxa to be identified over the last decade. Many of these fossil remains are still taxonomically indeterminate and require a more detailed study ...
Juan Maíllo +4 more
wiley +1 more source
The first description of dinosaurian eggshell from the Maastrichtian Lance Formation, Wyoming, North America [PDF]
Although numerous fossils have been excavated and described from the Upper Cretaceous (Maastrichtian) Lance Formation, eggs and eggshell remains are rare and have yet to be described in detail.
Tom T.P. Van Der Linden +3 more
doaj +1 more source
Palaeobiology and osteohistology of South African sauropodomorph dinosaurs
We found that the transitionary Sauropodiformes show both the traits of rapid growth of derived Sauropoda as well as interrupted growth of early branching Sauropodomorpha. There appears to be much more variation in growth dynamics of Sauropodiformes than initially thought.
Fay‐yaad Toefy +2 more
wiley +1 more source
Osteohistological insight into the growth dynamics of early dinosaurs and their contemporaries.
Dinosauria debuted on Earth's stage in the aftermath of the Permo-Triassic Mass Extinction Event, and survived two other Triassic extinction intervals to eventually dominate terrestrial ecosystems.
Kristina Curry Rogers +4 more
doaj +1 more source
A REEXAMINATION OF FOUR PROLACERTIFORMS WITH IMPLICATIONS FOR PTEROSAUR PHYLOGENESIS
Traditionally, pterosaurs have been included within the Archosauriformes and many contemporary workers consider the Pterosauria the sister group to Lagosuchus, Scleromochlus and the Dinosauria.
DAVID PETERS
doaj +1 more source
Brief review of dinosaur studies and perspectives in Brazil
Dinosaur research is developing at very high rates around the world resulting in several new discoveries that are improving our understanding of this terrestrial reptilian clade.
ALEXANDER W. A. KELLNER +1 more
doaj +1 more source
The partial skeleton of a leptoceratopsid dinosaur, Ischioceratops zhuchengensis gen. et sp. nov., was excavated from the bone-beds of the Upper Cretaceous Wangshi Group of Zhucheng, Shandong Province, China.
Yiming He +6 more
doaj +1 more source

