Results 21 to 30 of about 156,147 (279)
The central elliptical galaxy in fossil groups and formation of BCGs [PDF]
, 2006 We study the dominant central giant elliptical galaxies in ``Fossil groups'' using deep optical (R-band) and near infrared (Ks-band) photometry. These galaxies are as luminous as the brightest cluster galaxies (BCGs), raising immediate interest in their ...
Jones, Laurence R. +2 more
core +3 more sources
Current Biology, 2020 Philip Donoghue introduces the fossil record of cells.
openaire +2 more sources
Rates and Rocks: Strengths and Weaknesses of Molecular Dating Methods
Frontiers in Genetics, 2020 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)
Plants, 2022 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
Historical biogeography of Melastomataceae [PDF]
, 2001 Melastomataceae and Memecylaceae are pantropically distributed sister groups for which an ndhF gene phylogeny for 91 species in 59 genera is here linked with Eurasian and North American fossils in a molecular clock approach to biogeographical ...
Clausing, G. +2 more
core +1 more source
Nature, 1967 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
A new fossil Lucanidae subfamily (Coleoptera) from the Mesozoic of China [PDF]
Кавказский энтомологический бюллетень, 2015 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
Early Cambrian (Marianian) trilobites and associated faunas from the Sierra Norte de Sevilla Geopark: A scientific and heritage approach. [PDF]
Geoconservation Research, 2021 Some exceptional paleontological trilobite sites located in the Sierra Norte de Sevilla UNESCO Global Geopark are presented herein, together with an analysis of their geotourism / geotrail potential and a proposal for geoconservation.
Eduardo Mayoral Alfaro +7 more
doaj +1 more source
Lamarck et Cuvier en révolution
Arts et Savoirs, 2020 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
Mètode Science Studies Journal: Annual ReviewStories captivate us by speaking to our imagination and by giving order and meaning to our world. Stories not only give us knowledge about society, but they can also shape our understanding of nature.
Daniel Gamito-Marques
doaj +1 more source