Results 91 to 100 of about 7,820 (264)

A suture in time: The ontogeny of cranial suture morphology in mammals

open access: yesJournal of Anatomy, EarlyView.
Mammal cranial sutures are important indicators of the biomechanical and developmental pressures acting upon the skull. Across three prominent sutures dividing the vault of the mammalian skull, divergent patterns emerge both taxonomically and developmentally.
Heather E. White   +4 more
wiley   +1 more source

The resilient Middle Triassic habitable climate following Early Triassic severe carbon isotope oscillations: contributions from microbialites, Upper Yangtze Block

open access: yesFrontiers in Marine Science
The Permian-Triassic mass extinction was one of the worst crises for life on earth, killing >90% of marine species, which induced the carbon cycle perturbation during the entire Early Triassic.
Xianfeng Wang   +8 more
doaj   +1 more source

The histology of rhynchosaur (Diapsida, Archosauromorpha) ankylothecodonty

open access: yesJournal of Anatomy, EarlyView.
Dental evolution is a major topic in vertebrate palaeontology and provides key insights into the evolutionary history of several amniote clades. This study investigates rhynchosaur ankylothecodonty within the broader evolutionary context of Archosauromorpha.
Gabriel Mestriner   +7 more
wiley   +1 more source

A new horned and long-necked herbivorous stem-archosaur from the Middle Triassic of India

open access: yesScientific Reports, 2017
The early evolution of archosauromorphs (bird- and crocodile-line archosaurs and stem-archosaurs) represents an important case of adaptive radiation that occurred in the aftermath of the Permo-Triassic mass extinction.
Saradee Sengupta   +2 more
doaj   +1 more source

The influence of climate on early and burial diagenesis of Triassic and Jurassic sandstones from the Norwegian–Danish Basin [PDF]

open access: gold, 2017
Rikke Weibel   +12 more
openalex   +1 more source

Recovery of gastropods in the Early Triassic

open access: yesComptes Rendus Palevol, 2005
Abstract Gastropod rebound from the end-Permian mass extinction event initiated in the Olenekian and diversification continued until the Carnian. The most diverse and abundant Early Triassic gastropod faunas are from the Moenkopi Formation (Utah) and the Upper Werfen Formation (Europe, Alps), which contribute as much as 50% to the reported global ...
openaire   +1 more source

New information on Late Triassic sauropodomorph dinosaurs provides support for the independent acquisition of postcranial skeletal pneumaticity in avemetatarsalian lineages

open access: yesJournal of Anatomy, EarlyView.
PSP in early‐branching sauropodomorphs probably evolved first in the neural arches of the posterior cervical vertebrae, expanding anteriorly and posteriorly along the vertebral column. The distribution of PSP in Late Triassic early‐branching sauropodomorphs does not appear to be correlated with body size.
Samantha L. Beeston   +5 more
wiley   +1 more source

Sequence stratigraphy and paleogeographic setting of the Antimonio Formation (Late Permian-Early Jurassic), Sonora, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
The Antimonio Formation is a Late Permian, Triassic and Early Jurassic sedimentary succession composed of 14 fining-upwards unconformity-bounded sequences. It contains the Permian-Triassic and Triassic-Jurassic systemic boundaries, which are represented
Carlos M. González-León
doaj  

The oldest teleosts (Teleosteomorpha): their early taxonomic, phenotypic, and ecological diversification during the Triassic [PDF]

open access: yesFossil Record
As the fossil record reveals, neopterygians had a major diversification after the great mass extinction at the Permian-Triassic boundary, including the appearance of the major clade Teleosteomorpha.
Gloria Arratia, Hans-Peter Schultze
doaj   +3 more sources

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