Results 31 to 40 of about 100,570 (383)

VLADIMIR ONUPHRIEVICH KOVALEVSKY - THE FOUNDER OF THE EVOLUTIONARY PALEONTOLOGY (TO THE 175TH ANNIVERSARY)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
The 175th anniversary of Vladimir Onuphrievich Kovalevsky, an outstanding Russian scientist, considered as a founder of evolutionary paleontology, is celebrated in 2017 year. Before the classical works of V.O. Kovalevsky, paleontology dealt predominantly
V. N. Komarov
doaj   +1 more source

Oldest skeleton of a plesiadapiform provides additional evidence for an exclusively arboreal radiation of stem primates in the Palaeocene [PDF]

open access: yesRoyal Society Open Science, 2017
Palaechthonid plesiadapiforms from the Palaeocene of western North America have long been recognized as among the oldest and most primitive euarchontan mammals, a group that includes extant primates, colugos and treeshrews.
Stephen G. B. Chester   +4 more
doaj   +1 more source

Molecular Taphonomy of Heme: Chemical Degradation of Hemin under Presumed Fossilization Conditions

open access: yesMolecules, 2023
The metalloporphyrin heme acts as the oxygen-complexing prosthetic group of hemoglobin in blood. Heme has been noted to survive for many millions of years in fossils. Here, we investigate its stability and degradation under various conditions expected to
Mariam Tahoun   +4 more
doaj   +1 more source

New early Eocene tapiromorph perissodactyls from the Ghazij Formation of Pakistan, with implications for mammalian biochronology in Asia [PDF]

open access: yes, 2012
Early Eocene mammals from Indo-Pakistan have only recently come under study. Here we describe the first tapiromorph perissodactyls from the subcontinent. Gandheralophus minor n. gen. and n. sp. and G. robustus n. sp.
Bai B.   +37 more
core   +2 more sources

Impacts of invasive rats on Hawaiian cave resources

open access: yesInternational Journal of Speleology, 2020
Although there are no published studies and limited data documenting damage by rodents in Hawaiian caves, our incidental observations during more than 40 years of surveying caves indicate that introduced rodents, especially the roof rat, Rattus rattus ...
Francis G. Howarth, Fred D. Stone
doaj   +1 more source

Discovering a Project for the Development of Geotourism in Rural Areas: The Paleontological and Archaeological Interpretation Centre of Tamajón (CIPAT, Guadalajara, Spain)

open access: yesLand, 2022
The important paleontological and archaeological discoveries made in Tamajón in recent years have enriched the exceptional natural and cultural heritage of this town in the north of the Guadalajara province (central Spain).
Fernando Barroso-Barcenilla   +8 more
doaj   +1 more source

A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China [PDF]

open access: yes, 2010
We describe a new dromaeosaurid theropod from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia. The new taxon, Linheraptor exquisitus gen. et sp.
Choiniere, J.N.   +10 more
core   +1 more source

Defossilization: A Review of 3D Printing in Experimental Paleontology

open access: yesFrontiers in Ecology and Evolution, 2019
3D printing has made it possible to recreate, actuate, and modify replicas of ancient life in transformative ways— revolutionizing studies of ancient life.
Erynn H. Johnson, A. Carter
semanticscholar   +1 more source

PALEONTOLOGY AND PALEOGEOGRAPHY OF THE TETHYIAN AGGLUTINATED BENTHIC FORAMINIFERAL SPECIES OF THE GENUS SPIROPLECTINELLA [PDF]

open access: yesGeological Behavior, 2022
Thirty three small diagnostic benthic foraminiferal species of the Textulariid genus Spiroplectinella are common in the Late Cretaceous-Neogene rocks from many Tethyan localities: North Atlantic (USA, Mexico, Caribbean), South America (Brazil, Argentina,
Haidar Salim Anan
doaj   +1 more source

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