Results 31 to 40 of about 6,337 (221)

Silicified termite coprolites in mesquite-like wood from the Miocene of La Rioja, Argentina [PDF]

open access: yes, 2013
Coprolite-filled borings in fragments of non-decayed wood showing affinity with the mesquite-like morphogenus Prosopisinoxylon Martinez are described from Miocene strata from La Rioja, northwestern Argentina.
García Massini, Juan Leandro   +1 more
core   +1 more source

Fucoids or Coprolites [PDF]

open access: yesThe Journal of Geology, 1898
Reprinted from: Journal of geology, v. 6, no. 2. ; Signed: J.A. Udden. ; Caption title. ; Includes bibliographical references. ; Mode of access: Internet.
openaire   +1 more source

Large mammal remains from the early pleistocene site of Podere San Lorenzo (Perugia, Central Italy) [PDF]

open access: yes, 2019
Most of the research on fossil mammals from Umbria (central Italy) has been carried out in the southwestern branch of the Tiber basin, due to its paleontological richness.
Azzarà, Beatrice   +6 more
core   +3 more sources

Interpreting palaeofire evidence from fluvial sediments:a case study from Santa Rosa Island, California, with implications for the Younger Dryas Impact Hypothesis [PDF]

open access: yes, 2016
International audienceFluvial sequences from the late Pleistocene to the Holocene are exposed in Arlington Canyon, Santa Rosa Island, Northern Channel Islands, California, USA, including one outcrop that features centrally in the controversial hypothesis
Adams   +73 more
core   +4 more sources

Transformation of Dry Steppe Soils under Long Term Agrogenic Impacts in the Area of Ancient Olbia [PDF]

open access: yes, 2015
The results of the study of dark chestnut soils (Kastanozems) differing in the time and intensity of their agricultural use and in the duration of the fallow stage are analyzed.
Lisetskii, F. N., Rodionova, M. E.
core   +1 more source

Estudo de coprólito da bacia sedimentar do Araripe por meios de espectroscopia FT-IR e difração de Raios-X Study of coprolites from the Araripe sedimentary basin through FT-IR spectroscopy and x-ray diffraction

open access: yesQuímica Nova, 2007
Coprolites are fossilized faeces that constitute an important source of palaeobiological informations. This paper describes the characterization of some coprolite materials originated from the Romualdo Member of the Santana Formation (Araripe Basin ...
Ricardo Jorge Cruz Lima   +5 more
doaj   +1 more source

Application of Autofluorescence for Confocal Microscopy to Aid in Archaeoparasitological Analyses [PDF]

open access: yes, 2019
Confocal laser scanning microscopy (CLSM) was used to examine archaeoparasitological specimens from coprolites associated with La Cueva de los Muertos Chiquitos (CMC) located near present-day Durango, Mexico.
Elowsky, Christian, Morrow, Johnica Jo
core   +1 more source

A unique Valanginian paleoenvironment at an iron ore deposit near Zengővárkony (Mecsek Mts, South Hungary), and a possible genetic model [PDF]

open access: yes, 2007
The spatially restricted Early Valanginian iron ore (limonite) and manganese deposit at Zengõvárkony (Mecsek Mts, southern Hungary) contains a rich, strongly limonitized, remarkably large-sized (specimens are 30–70% larger than those at their type ...
Abed-Navandi D.   +42 more
core   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

A king-sized theropod coprolite [PDF]

open access: yesNature, 1998
Fossil faeces (coprolites) provide unique trophic perspectives on ancient ecosystems. Yet, although thousands of coprolites have been discovered, specimens that can be unequivocally attributed to carnivorous dinosaurs are almost unknown. A few fossil faeces have been ascribed to herbivorous dinosaurs1,2,3, but it is more difficult to identify ...
Karen Chin   +3 more
openaire   +1 more source

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