Results 31 to 40 of about 68,401 (279)
Survival of fossils under extreme shocks induced by hypervelocity impacts [PDF]
Experimental data are shown for survival of fossilized diatoms undergoing shocks in the GPa range. The results were obtained from hypervelocity impact experiments which fired fossilized diatoms frozen in ice into water targets.
McDermott, K. H. +3 more
core +1 more source
The palaeontological collection of the Geological Department of the National Museum of Natural History NAS of Ukraine (NMNH NASU) is among the most valuable objects of the national scientific and cultural heritage. The article presents a brief analytical
G. V. Anfimova +3 more
doaj +1 more source
Preservation of Arctic dinosaur remains from the Prince Creek Formation (Alaska, USA): A reply to Fiorillo (2016) [PDF]
We thank Anthony Fiorillo (2016) for the concerns he raised regarding our characterizations of the Liscomb bonebed fossils in our paper describing Ugrunaaluk kuukpikenis from the Prince Creek Formation of Alaska, USA (Mori et al. 2016). We did not
Hirotsugu Mori +2 more
doaj +1 more source
Rates and Rocks: Strengths and Weaknesses of Molecular Dating Methods
I present here an in-depth, although non-exhaustive, review of two topics in molecular dating. Clock models, which describe the evolution of the rate of evolution, are considered first.
Stéphane Guindon
doaj +1 more source
A Revised Phylogenetic Classification for Viola (Violaceae)
The genus Viola (Violaceae) is among the 40–50 largest genera among angiosperms, yet its taxonomy has not been revised for nearly a century. In the most recent revision, by Wilhelm Becker in 1925, the then-known 400 species were distributed among 14 ...
Thomas Marcussen +5 more
doaj +1 more source
A new fossil Lucanidae subfamily (Coleoptera) from the Mesozoic of China [PDF]
Litholamprima longimana Nikolajev et Ren, gen. et sp. n. of the family Lucanidae is described from the Lower Cretaceous Yixian Formation. Fossils were collected from Chaomidian Village, Liaoning Province, China.
G.V. Nikolajev, D. Ren
doaj +1 more source
Fossils on Mars: A "Cambrian Explosion" and "Burgess Shale" in the Lake Beds of Gale Crater?
An array of formations resembling the fossilized remains of Ediacaran and Cambrian fauna and other marine organisms have been observed embedded atopsediments in the dried lake beds of Gale Crater, Mars.
A R. Sumanarathna +14 more
core +1 more source
Vertebrate Paleontology By Alfred Sherwood Romer. Third edition. Pp. viii + 468. (Chicago and London: University of Chicago Press, 1966.) $10; 72s.
openaire +1 more source
Lamarck et Cuvier en révolution
In the context of the French Revolution, Lamarck fights Cuvier about the existence, upon the Earth of the past, of sudden catastrophes, which could be responsible of the extinction of the fossil species and prevent their transformations into the actual ...
Cédric Grimoult
doaj +1 more source

