Results 51 to 60 of about 104,619 (297)

Late Maastrichtian carbon isotope stratigraphy and cyclostratigraphy of the Newfoundland Margin (Site U1403, IODP Expedition 342) [PDF]

, 2018
Earth’s climate during the Maastrichtian (latest Cretaceous) was punctuated by brief warming and cooling episodes, accompanied by perturbations of the global carbon cycle.
Agnini, Claudia, Batenburg, S., Blum, P., Bornemann, A., Boulila, S., Bown, P. R., Courn\ue8de, C., Fehr, A., Fiebig, J., Friedrich, O., Ghosh, A. K., Hasegawa, T., Hollis, C. J., Hull, P. M., Jo, K., Junium, C. K., Kaneko, M., Liebrand, D., Lippert, P. C., Liu, Z., Matsui, H., Moebius, I., Moriya, K., Nishi, H., Norris, R. D., Opdyke, B. N., Penman, D., R\uf6hl, U., Romans, B., Scher, H. D., Sexton, P., Takagi, H., Turner, S. K., Voigt, S., Westerhold, T., Whiteside, J. H., Wilson, P. A., Yamaguchi, T., Yamamoto, Y.   +38 more
core   +3 more sources

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Widespread mermithid nematode parasitism of Cretaceous insects

eLife, 2023
Mermithid nematodes are obligate invertebrate parasites dating back to the Early Cretaceous. Their fossil record is sparse, especially before the Cenozoic, thus little is known about their early host associations.
Cihang Luo, George O Poinar, Chunpeng Xu, De Zhuo, Edmund A Jarzembowski, Bo Wang   +5 more
doaj   +1 more source

Leaf cuticular morphology links Platanaceae and Proteaceae [PDF]

, 2005
Int. J. Plant Sci. 166(5):843–855. © 2005 by The University of Chicago.The leaf cuticular morphology of extant species of Platanus was investigated using light and scanning electron microscopy.
Carpenter, R., Hill, R., Jordan, G.
core   +2 more sources

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Early Cenozoic denudation of central west Britain in response to transient and permanent uplift above a mantle plume [PDF]

, 2018
Upwelling mantle plumes beneath continental crust are predicted to produce difficult to quantify, modest uplift and denudation. The contribution of permanent and transient components to the uplift is also difficult to distinguish.
Al-Kindi, Arrowsmith, Bamford, Barnett-Moore, Beucher, Bluck, Blundell, Bott, Bott, Bott, Braun, Braun, Braun, Brown, Brown, Brown, Brown, Brown, C. Persano, Chadwick, Cogné, Cogné, Cope, Cox, Croudace, Davis, Dobson, Downing, F. M. Stuart, Farley, Flowers, Gallagher, Ganerød, Gautheron, Gautheron, Gautheron, Gautheron, Gleadow, Green, Green, Green, Green, Green, Guenthner, Hancock, Hancock, Haq, Hartley, Hillis, Holford, Holliday, Jackson, Japsen, Jones, Jones, K. Łuszczak, Ketcham, Lewis, Lister, Liu, Lundin, Mackay, Maclennan, McDowell, Meesters, Montgomery, Moucha, Mudge, Murray, Nadin, Persano, Persano, Petersen, Rowley, Rudge, Rundle, Saunders, Shaw Champion, Shennan, Simms, Simms, Stephenson, Stoker, Stuart, Tiley, Tiley, Tomlinson, Vernon, Ware, Westaway, Westaway, Westaway, White, White, White, Williamson, Ziegler, Ziegler, Łuszczak   +98 more
core   +1 more source

The cranial, mandibular, and hyoid anatomy of softshell turtles (Trionychidae): A revised character list for phylogenetic analysis

The Anatomical Record, EarlyView.
Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley   +1 more source

Palaeomagnetic and geochronologic results from lower cretaceous volcanics of the western Qiangtang terrane and implications for the Lhasa-Qiangtang collision

Scientific Reports
The Lhasa-Qiangtang collision is key to understanding the formation and evolution of the Tibetan Plateau; however, the precise timing of this event remains hotly debated.
Yabo Zhang, Weiwei Bian, Jiahui Ma, Suo Wang, Xianwei Jiao, Jiacheng Liang, Siqi Wang, Xiaolin Li, Jikai Ding, Hanqing Zhao, Haiyan Li, Huaichun Wu, Yiming Ma, Tianshui Yang   +13 more
doaj   +1 more source

PALYNOLOGY EVIDENCES OF HITHERTO UNRECOGNISED JURASSIC SEDIMENTATION IN RAJMAHAL BASIN, INDIA

Rivista Italiana di Paleontologia e Stratigrafia, 2004
In Rajmahal Basin the Upper Gondwana (Mesozoic) sequences are represented by the Dubrajpur and Rajmahal Formations. Palynologically, the Dubrajpur Formation is shown to be a time transgressive unit spanning from Early Triassic to Early Cretaceous. Out of
ARCHANA TRIPATHI
doaj   +1 more source

Neotethyan Ankara Melange, central Turkey: Formation by accretion of seamounts and supra-subduction zone ophiolites in an oceanic fore-arc setting

Journal of Asian Earth Sciences: X, 2023
The Neotethyan Ankara Melange is a global reference for oceanic accretionary processes preserved in a collisional orogen. Here we show, based on eight representative outcrops around Ankara, that the melange encompasses stratigraphically coherent volcanic-
Alastair H.F. Robertson, Osman Parlak, Kemal Taslı, Paulian Dumitrica, Timur Ustaömer   +4 more
doaj   +1 more source