Results 191 to 200 of about 28,176,873 (302)

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source

Acoustic Doppler current profiler observations during the coastal jet separation project on R/V Wecoma, August 23 to September 2, 1994

We present velocity observations from a shipborne acoustic Doppler current profiler (ADCP) on RIV Wecoma during cruise W9408A, August 23 to September 2, 1994. The ADCP processing procedures are described in detail. This cruise was part of the Coastal Jet
Oregon State University. College of Oceanic and Atmospheric Sciences, Barth, John A., Pierce, Stephen D., Smith, Robert L. (Robert Lloyd), 1935-   +3 more
core   +1 more source

Links between the Archean hydrosphere and Earth's interior. [PDF]

Nat Commun
Long ZY, Moynier F, Puchtel IS, Li Y, Luu TH, Deng J, Qiu KF.   +6 more
europepmc   +1 more source

Histological description and bone compactness analysis of fossil (Aldabrachelys sp.) and extant Aldabra giant tortoise (Aldabrachelys gigantea) shell bone fragments

The Anatomical Record, EarlyView.
Abstract Aldabra Atoll, north of Madagascar and part of the Seychelles Outer Islands, is home to the Aldabra giant tortoise, Aldabrachelys gigantea, the only survivor of several species of giant tortoises that were once widespread on islands across the Western Indian Ocean.
Stefanie Herter, Nicole Klein, Massimo Delfino, Erik de Boer, Julian P. Hume, Jordan Bestwick, Frauke Fleischer‐Dogley, Annabelle Constance, Dennis M. Hansen, Torsten M. Scheyer   +9 more
wiley   +1 more source

Subduction legacies in the mantle transition zone modulate intraplate oceanic volcanism. [PDF]

Nat Commun
Yang J, Faccenda M, Meyzen CM, Marzoli A, Zhao L.   +4 more
europepmc   +1 more source

Ocean Science as a Bridge [PDF]

Oceanography, 1999
openaire   +1 more source

Bioerosion traces in bones reveal an increase in ethological diversity in the insect exploitation of carcasses in the late Triassic

The Anatomical Record, EarlyView.
Abstract This study presents the first detailed description of bioerosion traces produced by insects in bones from the Santa Cruz Sequence (early Carnian, Santa Maria Supersequence, Brazil). An array of traces is reported, consisting of notches, a tube, trails of grooves attributed to the ichnotaxon Osteocallis mandibulus and ornamented depressions ...
Lucca S. Cunha, Francesco Battista, Heitor Francischini   +2 more
wiley   +1 more source

DRIFteRS: A dataset of drift invertebrate densities in streams and rivers across western North America, 1997-2024. [PDF]

Ecology
Toskey EK, Matsuoka T, Kiffney PM, Naman SM, Liermann MC, Bailey J, Beauchamp DA, Bellmore JR, Binckley CA, Blumenshine S, Caldwell TJ, Carey MP, Claeson S, Clawson C, Cox R, Cromwell KJ, Danehy RJ, Dodrill MJ, Duda JJ, Fellman JB, Grimm AZ, Hallbert TB, Jordan CE, Keeley ER, Kennedy BP, Kennedy TA, Kohler AE, Lowery ED, Macneale K, Martens KD, Morley SA, Muehlbauer JD, Neuswanger JB, O'Dowd A, Pneh S, Power M, Rhoades SJ, Rosenfeld J, Rossi G, Sanderson BL, Shelby KK, Starkey-Owens T, Thompson JN, Volk C, Williamshen JS, Wisseman RW.   +45 more
europepmc   +1 more source

Morphological variation of the conus arteriosus in Chondrichthyes: Implications for ecology and evolution

The Anatomical Record, EarlyView.
Abstract Cartilaginous fish have diverse morphological traits that are essential for understanding their evolutionary history and ecological adaptations. However, the conus arteriosus and its valves, key components of the heart and blood circulation, have been underexplored in phylogenetic and ecomorphological contexts.
Maria Clara El Bayeh de Andrade, Karla Diamantina de Araújo Soares   +1 more
wiley   +1 more source

Massive release of predominantly magmatic carbon drove an Early Jurassic hyperthermal. [PDF]

Nat Commun
Chen W, Wu Y, Kemp DB, Cui Y, Pohl A, Ruebsam W, Zheng D, Li C.   +7 more
europepmc   +1 more source