Results 51 to 60 of about 19,060 (240)

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Tasman frontier subduction initiation and paleogene climate [PDF]

, 2018
International Ocean Discovery Program (IODP) Expedition 371 drilled six sites in the Tasman Sea of the southwest Pacific between 27 July and 26 September 2017.
Keller, Allison L., Bhattacharya, J., Gurnis, M., Chang, Liao, Park, Y.-H., Newsam, C., Cramwinckel, M.J., Saito, Saneatsu, Drake, M.K., Stratford, W.R., Matsui, H., Pekar, S.F., Chang, L., Dickens, G.R., Li, He, Giorgioni, M., Bordenave, Aurelien, Westerhold, Thomas, Harper, D.T., Cramwinckel, Margot J., Etienne, S.J.G., Harper, Dustin T., Sutherland, Rupert, Alegret, Laia, Huang, H.-H.M., Park, Yu-Hyeon, Pascher, Kristina M., Dallanave, Edoardo, Sutherland, R., Gurnis, Michael, Saito, S., Dickens, Gerald R., Giorgioni, Martino, Dallanave, E., Collot, Julien, Blum, P., Stratigraphy & paleontology, Pascher, K.M., Bhattacharya, Joyeeta, Newsam, Cherry, Etienne, Samuel J.G., Penman, Donald E., Penman, D.E., Huang, Huai Hsuan May, Drake, Michelle K., Agnini, C., Alegret, L., Huang, Huai-Hsuan May, Bordenave, A., Zhou, X., Lam, Adriane R., Westerhold, T., Blum, Peter, Pekar, Stephen F., Agnini, Claudia, Marine palynology and palaeoceanography, Collot, J., Park, Yu Hyeon, Stratford, Wanda R., Etienne, Samuel J. G., Zhou, Xiaoli, Lam, A.R., Matsui, Hiroki, Li, H., Keller, A.L.   +64 more
core   +2 more sources

The lower deciduous dentition of protodidelphids (Mammalia, Marsupialia) from the Itaboraí Basin (lower Eocene), Brazil, and the validity of “Riolestes capricornicus” (Goin et al., 2009)

The Anatomical Record, EarlyView.
Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro, Hugo Bampi, João P. P. Araújo, Marina B. Soares, Gustavo R. Oliveira   +4 more
wiley   +1 more source

Cenozoic foraminiferal and dinoflagellate cyst biostratigraphy of the Central North Sea [PDF]

, 1992
We present a detailed Cenozoic biostratigraphy for Paleogene bathyal and Neogene ncritic strata, north of 55° in the central North Sea, and offshore mid-Norway, using both forarninifera and dinoflagellate cysts. Construction of the zonations was assisted
L. Loemo, Gradstein, F. M., Loemo, L., Kaminski, M. A., I. L. Kristiansen, Kristiansen, I. L., M. A. Kaminski, F. M. Gradstein   +7 more
core  

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source

Quantitative foraminiferal and palynomorph biostratigraphy of the Paleogene in the southwestern Barents Sea [PDF]

, 2004
The stratigraphic distribution of both foraminifera and dinoflagellate cysts is recorded from the Paleocene to Eocene Torsk Formation in 12 petroleum exploration wells drilled in the southwestern Barents Sea.
Johnson, K. , K., Kaminski, M.A., Nagy, J., Gradstein, F.M.   +3 more
core  

Types, characteristics, and implications on the exploration of far-source oil reservoirs in the north Melut Basin

地质科技通报, 2021
The Melut Basin is an important petroliferous basin in African Continent. The northern part of the basin is characterized by far-source oil accumulation with the oil generation in the Lower Cretaceous and the oil accumulation in the Paleogene. Clarifying
Zhongsheng Shi, Luo Xue, Lun Ma, Bintao Chen, Lei Wang, Wenzhu Pang, Jianglong Shi   +6 more
doaj   +1 more source

Phylogenetic structure of conifers in regional floras in relation to climate and environmental heterogeneity worldwide

Ecography, EarlyView.
Despite having only about 670 species worldwide, conifers are one of the ecologically and economically most important plant groups. They have a rich fossil record and previous studies have shown that their current diversity is the result of past radiations, extinction, and dispersal events, restricting many genera to either the Northern or Southern ...
Hong Qian, Michael Kessler, Shenhua Qian
wiley   +1 more source

Toward a Revised Paleogene Geochronology [PDF]

, 1992
New information has become available that requires a revision of Paleogene chronology incorporated in most current Cenozoic time scales. Age estimates for the limits of the Paleogene (the Oligocene/Miocene and Cretaceous/Paleogene boundaries) have not ...
Berggren, William A., Swisher, Carl C., Kent, Dennis V., Obradovich, John D.   +3 more
core   +1 more source

Paleogene – Neogene

During the late Danian-Selandian Laramide phase, open-marine carbonate deposition of the Late Cretaceous and earliest Paleocene was replaced by clastic sediment infll of the Southern North Sea Basin. The Laramide phase, associated with domal uplift and subsidence of Mesozoic grabens, led to a break in sedimentation and reworking of Upper Cretaceous ...
Munsterman, D.K., Donders, T.H., Houben, A.J.P., Veen, J.H. ten, Wesselingh, F.   +4 more
openaire   +2 more sources