Results 91 to 100 of about 5,705 (186)
A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout
Journal of Anatomy, EarlyView.Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack +2 more
wiley +1 more source
Revista 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
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Early Triassic ichthyopterygian fossils from the Russian Far East. [PDF]
Sci Rep, 2022 Nakajima Y +5 more
europepmc +1 more source
Journal of Anatomy, EarlyView.Bone tissues of Triassic taxa reveal life history signals consistent with climatic variation across southern Pangea, spanning present‐day Brazil, Argentina, Zimbabwe, and India. Slower growth patterns within the Zimbabwean assemblage suggest a comparatively more arid intracontinental environment than those closer to the coast. Artwork by Andrey Atuchin.
Valerie Trinidad +6 more
wiley +1 more source
A Highly Diverse Olenekian Brachiopod Fauna from the Nanpanjiang Basin, South China, and Its Implications for the Early Triassic Biotic Recovery. [PDF]
Biology (Basel), 2023 Wu H, Zhang Y, Chen A, Stubbs TL.
europepmc +1 more source
Journal of Anatomy, EarlyView.A three‐dimensional model is used to analyze the locomotor biomechanics of the large Late Triassic archosaurian reptile Postosuchus kirkpatricki. The study finds that it is more uncertain than previously concluded whether it was quadrupedal or bipedal, and plantigrade or digitigrade, but it clearly had locomotor specializations including large hindlimb
John R. Hutchinson +6 more
wiley +1 more source
Marine siliceous ecosystem decline led to sustained anomalous Early Triassic warmth. [PDF]
Nat Commun, 2022 Isson TT +6 more
europepmc +1 more source
Journal of Petroleum Geology, EarlyView.ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato +2 more
wiley +1 more source
A diverse diapsid tooth assemblage from the Early Triassic (Driefontein locality, South Africa) records the recovery of diapsids following the end-Permian mass extinction. [PDF]
PLoS One, 2023 Hoffman DK, Hancox JP, Nesbitt SJ.
europepmc +1 more source
A Unitary Association-based conodont biozonation of the Smithian-Spathian boundary (Early Triassic) and associated biotic crisis from South China. [PDF]
Swiss J Palaeontol, 2022 Leu M +6 more
europepmc +1 more source