Results 171 to 180 of about 9,024 (216)
Some of the next articles are maybe not open access.
Review of Palaeobotany and Palynology, 2007
Abstract Seagrasses are the only angiosperms that have invaded the marine environment. Fossil seagrasses are rare and received only little attention to date. However, among the scarce plant fossils in the marine deposits of the Maastrichtian type area, remains of seagrasses are relatively common.
van der Ham, R.W.J.M. +2 more
exaly +3 more sources
Abstract Seagrasses are the only angiosperms that have invaded the marine environment. Fossil seagrasses are rare and received only little attention to date. However, among the scarce plant fossils in the marine deposits of the Maastrichtian type area, remains of seagrasses are relatively common.
van der Ham, R.W.J.M. +2 more
exaly +3 more sources
Astronomical calibration of the Maastrichtian (Late Cretaceous)
Earth and Planetary Science Letters, 2011 Abstract Recent improvements to astronomical modeling of the Solar System have contributed to important refinements of the Cenozoic time scale through astronomical calibration of sedimentary series. We extend this astronomical calibration into the Cretaceous, on the base of the 405 ka orbital eccentricity variation thanks to the recovery of well ...
Husson, Dorothée +6 more
openaire +3 more sources
Late Maastrichtian Nannoplankton Provinces
Nature, 1970IT has been known for some time that there was a sharp differentiation of late Maastrichtian faunal provinces with respect to planktonic foraminifera. Axelrod1 has presented evidence that this was also the case with some terrestrial megaphyta, for he found a rather abrupt southward shift for the coniferous vegetation of the northern hemisphere during ...
T, Worsley, E, Martini
openaire +2 more sources
Additional snakes from the uppermost Cretaceous (Maastrichtian) of India
Cretaceous Research, 2004 The Maastrichtian fauna from India includes snakes that are still poorly known, but potentially of great interest. Two new Indian localities of Maastrichtian age have yielded snake fossils and another Maastrichtian locality from which snake fossils were ...
Guntupalli V R Prasad +2 more
exaly +2 more sources
Maastrichtian silicoflagellates of the great valley, California
Geoscience and Man, 1974Abstract Fossil silicoflagellates of the genera Corbisema, Cornua, Dictyocha, Lyramula, and Vattacerta are abundant in the Marca Shale Member, Moreno Formation (Maastrichtian). Corbisema is represented by four morphotypes: Corbisema geometrica Hanna, C. geometrica Hanna var. apiculata Jouse, C. trigona (Zit‐tel) Deflandre, and C. triacantha (Ehrenberg)
openaire +1 more source
The biostratigraphy and paleobiogeography of Maastrichtian inoceramids
1996The global distribution of Maastrichtian inoceramids is now known in enough detail that the patterns of disappearance can be used to place first-order constraints on paleoceanographic changes that may have occurred during that age. The Inoceramidae is an excellent group to focus on in a study of Maastrichtian events for the following reasons: (1) they ...
MacLeod, Kenneth G. +2 more
openaire +1 more source
A review of Maastrichtian ammonite ranges
1990Although Maastrichtian ammonite diversity was lower than that of the Campanian Age, the purported long-term diversity reduction of ammonites near the end of the Cretaceous may be more a product of sea-level change than evidence of a long-term slide toward extinction in this group.
openaire +1 more source
Maastrichtian Charophyte Gyrogonites from Jamaica
Micropaleontology, 1984A well-preserved charophyte gyrogonite assemblage consisting of Platychara grambastii, Porochara cf. anluensis, and Porochara oblonga is herein reported from the upper part of the Slippery Rock Formation from the Central Inlier in Jamaica. The assemblage indicates a Maastrichtian age for the upper part of the Slippery Rock Formation.
Arun Kumar, N. Grambast-Fessard
openaire +1 more source
The Maastrichtian Phosphate Sequence of the Congo
1980Abstract The Maastrichtian phosphate series of the Congo is exposed in a narrow belt about 750 m wide trending parallel to the NW SE direction of the Precambrian Massif of Mayombe and was preserved from erosion by down faulting The generally lenticular and thin phosphate occurrences can be grouped in two facies types:siliceous ...
openaire +1 more source
Paleoecology of the Maastrichtian Rudist Biradiolites in Jamaica
2007Abstract: Three species of the radiolitid rudist Biradiolites, B. rudissimus Trechmann, B. jamaicensis Trechmann, and B. mooretowensis(Trechmann), distinguished by differences in their radial bands, occur in the upper Maastrichtian limestones of Jamaica.
Simon F. Mitchell +2 more
openaire +1 more source