Results 291 to 300 of about 183,367 (338)
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Journal of Paleontology, 1993
Jamaica has the best-known fauna of fossil crinoids of the Antillean islands. Two Cretaceous species have been reexamined on the basis of new material. Lower Cretaceous Apiocrinites sp., previously referred to Austinocrinus n. sp. and first documented from a short pluricolumnal, is now known from brachials and further fragments of column.
Cornelis J. Veltkamp +2 more
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Jamaica has the best-known fauna of fossil crinoids of the Antillean islands. Two Cretaceous species have been reexamined on the basis of new material. Lower Cretaceous Apiocrinites sp., previously referred to Austinocrinus n. sp. and first documented from a short pluricolumnal, is now known from brachials and further fragments of column.
Cornelis J. Veltkamp +2 more
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1995
Cretaceous transgressions left marine deposits over wide areas of Tethys, from which it is possible to develop paleogeographic maps depicting the configuration and extent of marine and continental paleoenvironments, including oceanic seafloor and structural patterns.
Gilbert Camoin +2 more
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Cretaceous transgressions left marine deposits over wide areas of Tethys, from which it is possible to develop paleogeographic maps depicting the configuration and extent of marine and continental paleoenvironments, including oceanic seafloor and structural patterns.
Gilbert Camoin +2 more
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Bornaviruses from the Cretaceous
Nature Reviews Microbiology, 2021Analysis of endogenous viral elements reveals that bornaviruses already infected hosts 100 million years ago.
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Fossil data support a pre-Cretaceous origin of flowering plants
Nature Ecology & Evolution, 2021D. Silvestro +6 more
semanticscholar +1 more source
Science, 1978
Exceptionally well preserved larval bivalve shells have been isolated from Late Cretaceous (Maestrichtian) sediments. Specimens were readily identified to familial level on the basis of gross morphology and hinge structures. Reconstruction of fossil larval ontogeny, linked with the distribution of adult stages, will provide an important interpretative ...
Richard A. Lutz, David Jablonski
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Exceptionally well preserved larval bivalve shells have been isolated from Late Cretaceous (Maestrichtian) sediments. Specimens were readily identified to familial level on the basis of gross morphology and hinge structures. Reconstruction of fossil larval ontogeny, linked with the distribution of adult stages, will provide an important interpretative ...
Richard A. Lutz, David Jablonski
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, 2015
Upper Cretaceous–Eocene forearc strata deposited along the California continental margin record a complex history of plate convergence that shaped the tectonic development of the U.S. Cordillera.
G. Sharman +4 more
semanticscholar +1 more source
Upper Cretaceous–Eocene forearc strata deposited along the California continental margin record a complex history of plate convergence that shaped the tectonic development of the U.S. Cordillera.
G. Sharman +4 more
semanticscholar +1 more source
Nature, 1970
Two fleas have been collected in association with abundant remains of fish, plants, phyllopod Crustacea (Conchostraca, Anostraca and Cladocera) and other insects in a Lower Cretaceous siltstone at Koonwarra, southern Gippsland, Australia. The insect fauna consists mainly of the aquatic immature stages of Ephemeroptera (mayflies), Diptera (midges ...
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Two fleas have been collected in association with abundant remains of fish, plants, phyllopod Crustacea (Conchostraca, Anostraca and Cladocera) and other insects in a Lower Cretaceous siltstone at Koonwarra, southern Gippsland, Australia. The insect fauna consists mainly of the aquatic immature stages of Ephemeroptera (mayflies), Diptera (midges ...
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Mid-Cretaceous to Paleocene North American drainage reorganization from detrital zircons
, 2014Detrital zircons (DZ) from fluvial sandstones of the Western Canada Sedimentary Basin and the U.S. Gulf of Mexico (GoM) passive margin indicate mid-Cretaceous through Paleocene continental-scale drainage reorganization.
M. Blum, M. Pecha
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The Cretaceous Layers Later than the Early Cretaceous
2018The marine continuity after the Early Cretaceous implies an essential difference with the condition in the orogenic belt with a N-S trend of the Patagonian Cordillera, and it could be said, in a figurative sense, that the continent has kept its feet in the ocean.
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, 2012
A new 55 m.y. global compilation of benthic foraminifera δ 13 C and δ 18 O for the middle to Late Cretaceous shows that there was widespread formation of bottom waters with temperatures >20 °C during the Cretaceous greenhouse world.
O. Friedrich, R. Norris, J. Erbacher
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A new 55 m.y. global compilation of benthic foraminifera δ 13 C and δ 18 O for the middle to Late Cretaceous shows that there was widespread formation of bottom waters with temperatures >20 °C during the Cretaceous greenhouse world.
O. Friedrich, R. Norris, J. Erbacher
semanticscholar +1 more source