Results 31 to 40 of about 24,714 (307)

A modified trap design for sampling subterranean habitats for central Texas Eurycea salamanders [PDF]

open access: yesSubterranean Biology
In this paper, we describe modifications to a sampling technique for surface, stream-dwelling salamanders for use in subterranean settings. Leaf litter bags are an effective and commonly used trap for salamanders, and their construction purposefully ...
Ryan M. Jones   +3 more
doaj   +3 more sources

New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China [PDF]

open access: yesActa Palaeontologica Polonica, 2020
The fuxianhuiid arthropod Guangweicaris spinatus, from the lower Cambrian (Series 2, Stage 4), Guanshan Biota (Wulongqing Member, Canglangpu Formation), located in the vicinity of Kunming (Yunnan Province, southwest China), is redescribed based on new ...
Hong Chen   +4 more
doaj   +1 more source

Sedimentary characteristics and development model of Cambrian gypsum-salt rocks, Tarim Basin

open access: yesShiyou shiyan dizhi, 2021
The Cambrian gypsum-salt rocks in the Tarim Basin are key geological elements to the pre-salt play typical marine evaporites, yet little attention has been paid to this set of evaporites.
Qi FAN   +5 more
doaj   +1 more source

Cambrian fans

open access: yesJournal of the European Mathematical Society, 2009
For a finite Coxeter group W and a Coxeter element c of W, the
Nathan Reading, David E. Speyer
openaire   +3 more sources

The Cambrian explosion [PDF]

open access: yesCurrent Biology, 2015
The sudden appearance of fossils that marks the so-called 'Cambrian explosion' has intrigued and exercised biologists since Darwin's time. In On the Origin of Species, Darwin made it clear that he believed that ancestral forms 'lived long before' their first fossil representatives.
openaire   +2 more sources

Plated Cambrian bilaterians reveal the earliest stages of echinoderm evolution [PDF]

open access: yes, 2012
Echinoderms are unique in being pentaradiate, having diverged from the ancestral bilaterian body plan more radically than any other animal phylum. This transformation arises during ontogeny, as echinoderm larvae are initially bilateral, then pass through
Samuel Zamora (160825)   +11 more
core   +1 more source

atcribb/Ediacaran-Cambrian-OPD-Controls: Initial-Submission-2

open access: yes, 2022
This release contains the code for the submission of the article "Ediacaran-Cambrian bioturbators did not oxygenate sediments in shallow marine ...
Alison Cribb
core   +1 more source

Accessing Heart Health: A Northern Experience

open access: yesOnline Journal of Rural Nursing and Health Care, 2011
Background and Research Purpose: Coronary heart disease (CHD) continues to be a major cause of death and disability across the globe. Regional differences in CHD exist throughout Canada, including Ontario. It is important to explore the complex interplay
Katherine Timmermans   +6 more
doaj   +1 more source

Cambrian Trilobites [PDF]

open access: yesProceedings of the National Academy of Sciences, 1916
USNM ...
openaire   +2 more sources

Research on Reservoir Characteristics and Main Controlling Factors of Longwangmiao Formation of Cambrian in Sichuan Basin

open access: yesFrontiers in Earth Science, 2022
Based on the 4 measured profiles, 17 observation profiles, and 13 drilling core macroscopic and microscopic characteristics of the Cambrian Longwangmiao Formation in the Sichuan Basin, combined with analysis and testing, and reservoir logging ...
Qiang Wang   +3 more
doaj   +1 more source

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