Results 171 to 180 of about 3,963,579 (218)

Discovery of Late Devonian plants from the southern Yellow Sea borehole of China and its palaeogeographical implications

Palaeogeography, Palaeoclimatology, Palaeoecology, 2017
Late Devonian plant remains, species of Archaeopteris and Sublepidodendron , and some representative miospores, are recognized from silty mudstone borehole core (well depth: 2063.1–2068.8 m) in the southern Yellow Sea, China.
Xing-Wei Guo, Honghe Xu, XIAO-QING Zhu, Yumao Pang, Xun-hua Zhang, Huizhong Lu   +5 more
semanticscholar   +1 more source

Pseudoextinctions in late Devonian proetide trilobites

Historical Biology, 1994
Morphologically similar proetide trilobite genera occur in highest Devonian or lowest Carboniferous and in Middle Devonian strata, but are absent from the intervening Upper Devonian. The similarities have been accounted for either by true phyletic relationship, or by homoeomorphy.
openaire   +1 more source

Late Devonian glaciation in South America

Palaeogeography, Palaeoclimatology, Palaeoecology, 1985
Abstract An ice age in Famennian (Late Devonian) time is documented by the presence of diamictites with striated, faceted and polished pebbles; rhythmites with dropstones; erratic boulders; and striated pavements and deformed sandstones. The glacigenic beds occur in three huge intracratonic basins (Solimoes, Amazonas and Parnaiba) and in one ...
openaire   +1 more source

Late Devonian sphenopsid shows evidence of aquatic adaptations

Current Biology
Vascular plants diversified and adapted to various terrestrial environments during the Silurian and Devonian periods and had formed complex forests by the Middle and Late Devonian1. However, fossil evidence of functional adaptations to aquatic environments remains scarce, from forms with only submerged subterranean parts to fully submerged types ...
Le, Liu, Yi, Zhou, Pu, Huang, Min, Qin, Li, Liu, Peng, Xu, De-Ming, Wang   +6 more
openaire   +2 more sources

Miospore events from late earlyto Late Devonian strata of Western Gondwana

Geobios, 2000
Abstract A miospore zonal scheme for late Early - Late Devonian strata of Western Gondwana is presented. Itis based on the first occurrences of both distinctive zonal taxa or groups of taxa of the most significative biozonations of Southern Euramerica and endemic Western Gondwanan species.
Stanislas Loboziak, José Henrique G. Melo   +1 more
openaire   +1 more source

Some Late Devonian trilobites of China

1981
Late Devonian trilobites are here reported from three localities in China: (1) Daihua, Changshun County, Guizhou province; (2) Mianduhe, Hulun Buir Meng, Nei Mongol [Inner Mongolia], central part of Da Hingan [Great Khingan]; and (3) Hoxtolgay, West Junggar, Xinjiang.
openaire   +1 more source

New Late Devonian strophomenids (Brachiopoda) from Mongolia

Paleontological Journal, 2011
Two new strophomenid species, Leptagonia barunkhuraica sp. nov. (Famennian) and Floweria mongolica sp. nov. (Frasnian), from the Upper Devonian of the Barunkhurai Depression of southern Mongolia are described.
openaire   +1 more source

Climate of the Late Devonian to Triassic

Palaeogeography, Palaeoclimatology, Palaeoecology, 1993
Abstract Remarkable changes are apparent in climate during Late Devonian-Triassic times. Mostly the climate was rather different from the present. The faunas and floras offer much evidence for understanding the climate but, in turn, understanding the palaeogeography of the faunas and floras is dependent on understanding the climate and the changes in
openaire   +1 more source

Late Devonian Conodonts from Alberta Subsurface: ABSTRACT

AAPG Bulletin, 1966
Cores from four wells in mid-southern Alberta have yielded diverse and abundant conodont faunas. Large numbers of specimens were recovered from Upper Devonian strata assigned to the Wabamun Group (Famennian) and the stratigraphically lower Winterburn Group, Woodbend Group, and Beaverhill Lake Formation (Frasnian).
openaire   +1 more source

The late Frasnian (Upper Devonian) Kellwasser Crisis

2005
Detailed investigations of sequences containing the Kellwasser Bio-event near the Frasnian-Famennian boundary demonstrate a stepwise character of influences on different groups of organisms over a time span of more than 1 my. Therefore the term Kellwasser Crisis (KW Crisis) is introduced. Extraordinary episodes of the KW Crisis, like e.g.
openaire   +1 more source