Results 81 to 90 of about 67,405 (320)

Carbon isotope record (d13Ccarbonate) of the Middle to Late Jurassic (Callovian - Oxfordian) from the Algarve Basin, Portugal [PDF]

, 2014
The Algarve Basin is an important Mesozoic depocentre located in southern Portugal which formed during the succesive phases of the North Atlantic rifting following the break-up of Pangea [1]. Several unconformities related to compressive episodes
Borges, Marisa, Fernandes, Paulo, Goodhue, R., Rodrigues, Bruno   +3 more
core  

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

Middle Jurassic sandstone deposition in the Wandel Sea Basin: evidence from cardioceratid and kosmoceratid ammonites in the Mågensfjeld Formation in Kilen, North Greenland

GEUS Bulletin, 2020
Age assessments from both palynostratigraphy and macrofossil biostratigraphy of the sandstone-dominated Mågensfjeld Formation, Wandel Sea Basin, North Greenland were hitherto hampered by post-burial thermal degradation of dinoflagellate cysts and a lack ...
Peter Alsen, Jussi Hovikoski, Kristian Svennevig   +2 more
doaj   +1 more source

Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic). [PDF]

, 2008
Recent bulk sampling and study of museum collections has revealed a high diversity of hybodont sharks from the English Bathonian, with 15 species being recognised.
AGASSIZ, ANSORGE, ARKELL, BENTON, BIGOT, BONEHAM, BROOM, BROUGH, BROWN, BROWN, BŁAŻEJOWSKI, CAPPETTA, CAPPETTA, CAPPETTA, CAPPETTA, CASIER, CASIER, CHARLESWORTH, COPE, CUNY, CUNY, CUNY, DELSATE, DINELEY, DUFFIN, DUFFIN, DUFFIN, EGERTON, EGERTON, ERASMO, ESTES, EVANS, FRAAS, GLIKMAN, GUENNEGUES, HAY, HERMAN, HORTON, JAEKEL, KRIWET, KRIWET, MAISEY, MAISEY, MAISEY, MAISEY, MARTILL, METCALF, MEYER, NESSOV, OWEN, OWEN, PALMER, PATTERSON, PEYER, PHILLIPS, QUENSTEDT, REES, REES, REES, REES, REIF, RIEPPEL, SAVAGE, STROMER, SUMBLER, SWEETMAN, THIES, UNDERWOOD, UNDERWOOD, UNDERWOOD, UNDERWOOD, UNDERWOOD, WOODWARD, WOODWARD, WOODWARD, WOODWARD, ZANGERL   +76 more
core   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

STRATIGRAFIA DEL GIURASSICO DEI DINTORNI DI FOZA (ALTOPIANO DI ASIAGO)

Rivista Italiana di Paleontologia e Stratigrafia, 2023
The Middle and Upper Jurassic sequence near Foza (Asiago plateau; Venetian Alps) is characterized by important hiatuses. The relevant deposits are furthermore often found as sedimentary dikes, filling up fractures in the underlying carbonatic platform ...
CHIARA BENIGNI, POMPEO CASATI, CAMILLA PIRINI RADRIZZANI   +2 more
doaj  

Protolith age of the Altar and Carnero complexes and latest Cretaceous–Miocene deformation in the Caborca–Altar region of northwestern Sonora, Mexico

Revista Mexicana de Ciencias Geológicas, 2019
In the Caborca–Altar area of northwest Sonora, variably deformed and metamorphosed sedimentary and volcanic rocks crop out in a northwest-southeast–trending belt (El Batamote belt) at least 70 km long.
Carl E. Jacobson, César Jacques-Ayala, Andrew P. Barth, Juan Carlos García y Barragán, Jane N. Pedrick, Joseph L. Wooden   +5 more
doaj   +1 more source

A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Acta Palaeontologica Polonica, 2022
We describe the anatomy of a new longirostrine pliosaurid, Eardasaurus powelli gen. et sp. nov., based on a substantially complete skeleton from the Middle Jurassic Oxford Clay Formation of Oxfordshire, UK.
HILARY F. KETCHUM, ROGER B.J. BENSON
doaj   +1 more source

Can social media provide early warning of retraction? Evidence from critical tweets identified by human annotation and large language models

Journal of the Association for Information Science and Technology, EarlyView.
Abstract Timely detection of problematic research is essential for safeguarding scientific integrity. To explore whether social media commentary can serve as an early indicator of potentially problematic articles, this study analyzed 3815 tweets referencing 604 retracted articles and 3373 tweets referencing 668 comparable non‐retracted articles. Tweets
Er‐Te Zheng, Hui‐Zhen Fu, Mike Thelwall, Zhichao Fang   +3 more
wiley   +1 more source

Mesozoic-Cenozoic mafic magmatism in Sanandaj-Sirjan Zone, Zagros Orogen (Western Iran): geochemical and isotopic inferences from Middle Jurassic and Late Eocene gabbros [PDF]

, 2017
One of the consequences of Neo-Tethys ocean subduction beneath the Central Iranian Micro-continent (CIMC) is the development of rare gabbroic intrusions in the Malayer-Boroujerd Plutonic Complex (MBPC) located in the Sanandaj-Sirjan Zone (SaSZ) of the ...
Deevsalar, Reza, Ghaderi, Majid, Hoskin, P.W.O., Lee, Hao Yang, Murata, Mamoru, Neill, Iain, Oshiro, Shoma, Shinjo, Ryuichi, Wang, Kuo-Lung   +8 more
core   +1 more source