Results 191 to 200 of about 306,602 (306)

Atmospherically deposited elemental mercury drives evasion of mercury from the ocean and freshwaters. [PDF]

Natl Sci Rev
Fu X, Zhang H, Tang K, Sommar J, Huang JH, Song Z, Zhang Y, Driscoll CT, Feng X.   +8 more
europepmc   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source

The mantle source of REE-rich alkaline silicate magmas can be enriched by continent-derived sediment subduction. [PDF]

Nat Commun
Qiu KF, Long ZY, Romer RL, Halama R, Williams-Jones AE, Yu HC, Li SS, Wu MQ, Deng J.   +8 more
europepmc   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

Seismic and gravity constraints on plate flexure and mantle rheology along the whole Hawaiian-Emperor seamount chain. [PDF]

Nat Commun
Watts AB, Xu C, Wessel P, Shillington DJ, Boston B, Dunn R.   +5 more
europepmc   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Amazon deforestation weakens Atlantic Niño variability. [PDF]

Nat Commun
Wei S, Wang C, Cai W, Wang X.
europepmc   +1 more source

The musculature and skeleton of the pelvic fin of the crocodile shark, Pseudocarcharias kamoharai (Matsubara, 1936) (Elasmobranchii: Lamniformes): Morphology and sexual dimorphism

The Anatomical Record, EarlyView.
This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti, Kenshu Shimada, João Paulo C. B. da Silva   +2 more
wiley   +1 more source

Revisiting the scale of mantle plume-induced hot spot swells. [PDF]

Sci Adv
Liu L, Morgan JP, Xu YG, Long SM, Navarro AM, Morgan WJ.   +5 more
europepmc   +1 more source

Radiolaria : Newsletter of the International Association of Radiolarian Paleontologists [PDF]

, 2004

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