Results 31 to 40 of about 12,589 (253)
Lower Cretaceous rocks of Sierra Los Chinos, east-central Sonora, Mexico [PDF]
Geofísica Internacional, 2000 Most Lower Cretaceous rocks in Sonora are part of the Bisbee Group of southern Arizona, deposited within a basin considered to be an extension of the Gulf of Mexico into Texas, New Mexico, Arizona and Sonora.
José F. Longoria, Rogelio Monreal
doaj
American Journal of Botany, EarlyView.Abstract Premise Although the megafossil flora of the upper Albian–lower Cenomanian Dakota Formation in Kansas is well known for angiosperms, monocots have not been reported previously. Methods A mesofossil flower was discovered by X‐ray analysis of a specimen collected more than a century ago from the Dakota Sandstone of central Kansas.
Bruce H. Tiffney +4 more
wiley +1 more source
Учёные записки Казанского университета: Серия Естественные науки, 2022 This article provides the first detailed description of the 25-m thick Cretaceous–Eocene section near the Mazanka village and its stratigraphic subdivision.
K.A. Dubkova +3 more
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An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation
The Anatomical Record, EarlyView.Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski +2 more
wiley +1 more source
Boletín Geológico, 2021 The Yuruma Formation in the Yuruma hill area its type locality can be differentiated into two stratigraphic intervals. The lower and upper intervals of the Yuruma Formation can also be subdivided into two segments.
Pedro Patarroyo
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Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs
The Anatomical Record, EarlyView.Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada +5 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham +4 more
wiley +1 more source
Nikolay Ivanovitch Karakash - an outstanding scientist-naturalist
Известия высших учебных заведений: Геология и разведка, 2015 The 2016 year is a year of the 100th anniversary of the death of the outstanding Russian geologist and paleontologist, one of the first investigators of Cretaceous deposits of Crimea and Caucasus, Nikolay Ivanovitch Karakash.
V. N. Komarov
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The Anatomical Record, EarlyView.Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison +9 more
wiley +1 more source