Results 41 to 50 of about 96,413 (305)
Evidence for a prolonged Permian–Triassic extinction interval from global marine mercury records
The latest Permian mass extinction, the most devastating biocrisis of the Phanerozoic, has been widely attributed to eruptions of the Siberian Traps Large Igneous Province, although evidence of a direct link has been scant to date.
Jun Shen +8 more
semanticscholar +1 more source
On the Permian Chitonidæ [PDF]
The discovery of Chiton Loftusianus at Tunstall Hill, in 1844, by Messrs. Loftus and King, introduced the family Chitonidæ into the List of the Permian Fauna*. For several years this species remained its sole representative; but in 1856 another species was found in the same locality, and in ...
openaire +1 more source
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido +4 more
wiley +1 more source
Coccidioidomycosis in pregnancy: Case report and literature review of associated placental lesions
Background: Coccidioidomycosis is an endemic fungal infection found most commonly in the Southwestern United States, Northwestern Mexico, and parts of Central and South America. Although infection is relatively uncommon during pregnancy, it is imperative
Heloise Labuschagne +9 more
doaj +1 more source
Geological records of Milankovitch cycles provide a temporal framework for reconstructing Earth climate evolution and mapping out the history of the ancient Solar System.
He Huang +7 more
semanticscholar +1 more source
Permian climate change recorded in palynomorph assemblages of Mozambique (Moatize Basin, eastern Tete Province) [PDF]
Knowledge of Late Permian biodiversity patterns, following the end-Guadalupian crisis, is still in its infancy, since most recent studies have focused on the end-Permian biotic crisis.
Lloyd, Andrew W +8 more
core +1 more source
Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund +4 more
wiley +1 more source
Poor nutrition during pregnancy is a worldwide public health problem. Maternal nutrient reduction (MNR) is associated with maternal and fetal stress and a sex‐dependent decrease in nonhuman primate (NHP) cognitive performance.
Kushal Gandhi +9 more
doaj +1 more source
No mass extinction for land plants at the Permian–Triassic transition
The most severe mass extinction among animals took place in the latest Permian (ca. 252 million years ago). Due to scarce and impoverished fossil floras from the earliest Triassic, the common perception has been that land plants likewise suffered a mass ...
H. Nowak +2 more
semanticscholar +1 more source
Sedimentology of the continental end‐Permian extinction event in the Sydney Basin, eastern Australia
Upper Permian to Lower Triassic coastal plain successions of the Sydney Basin in eastern Australia have been investigated in outcrop and continuous drillcores.
C. Fielding +9 more
semanticscholar +1 more source

