Results 301 to 310 of about 99,859 (391)
The origin and evolution of air sacs in pterosaurs and their forerunners
Pneumatized pterosauromorph vertebrae and their phylogenetic context. Abstract Although the existence of postcranial pneumaticity and the inferred presence of air sacs connected to the lungs are well established in Pterosauria, the origin of this system in pterosaurs remains unclear. We investigated skeletal pneumaticity in the Triassic pterosauromorph
Tito Aureliano+4 more
wiley +1 more source
Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton. [PDF]
Chang YG, Qing SY, Dai MY, Chen SH.
europepmc +1 more source
The molecular phylogeny of Scirtinae based on ultraconserved elements is reanalyzed using the site‐heterogeneous model CAT‐GTR+G4. A new scirtine fossil, Serracyphon philipsi gen. et sp. nov., is reported from mid‐Cretaceous Kachin amber, and its placement is evaluated in light of the updated phylogenomic framework of Scirtinae.
Yan‑Da Li+3 more
wiley +1 more source
Ediacaran-Cambrian paleosols of Nevada and California. [PDF]
Retallack GJ.
europepmc +1 more source
This study examines the influence of climatic and geographical factors on the body size of iguanas in the Lesser Antilles. We show that iguana body size increases with island size and decreases with distance from the mainland, suggesting that geographical conditions have a greater influence on body size compared to climatic conditions.
F. Desigaux+6 more
wiley +1 more source
Reply to Emery-Wetherell: Taphonomy of Lujiatun 3D dinosaurs is inconsistent with death and burial by lahars. [PDF]
Olsen PE+9 more
europepmc +1 more source
Low and facultative mycorrhization of ferns in a low-montane tropical rainforest in Ecuador. [PDF]
Michel J, Lehnert M, Nebel M, Quandt D.
europepmc +1 more source
ABSTRACT The Iberian lynx was at the brink of extinction by the year 2000 but has since then, and thanks to intensive conservation measures, gone through a remarkable recovery, providing a much‐welcomed and encouraging conservation success story.
José A. Godoy+13 more
wiley +1 more source