Results 31 to 40 of about 1,738 (172)

Taphonomy of the vertebrate bone beds from the Klūnas fossil site, Upper Devonian Tērvete Formation of Latvia [PDF]

open access: yes, 2012
Combined sedimentological and taphonomical study of the siliciclastic sequence of the Tērvete Formation in the stratotypical area was aimed at revealing the formation of the three oryctocoenoses discovered and related structural and textural features of ...
Ervīns Lukševičs   +3 more
core   +1 more source

Transfer of type specimens of fossil fishes to the Bavarian State Collection for Palaeontology and Geology with some notes on their history of research [PDF]

open access: yes, 2013
Recent acquisitions to the Bavarian State Collection for Palaeontology and Geology comprise part of the palaeontological collections of the former Heimatmuseum Bad Windsheim and the former Institute of Palaeontology and Geology at the University of ...
Moser, Markus
core   +1 more source

El registro fósil de los peces mexicanos de agua dulce

open access: yesRevista Mexicana de Biodiversidad, 2015
El registro fósil de los peces de agua dulce en México, si bien es escaso, se ha visto incrementado durante los últimos a˜nos. Estos fósilesse conocen en 39 localidades, de las cuales 4, ubicadas en el norte del país, son cretácicas y cuentan con restos ...
Ana Fabiola Guzmán
doaj   +1 more source

Probable aestivation burrows from the Eocene/Oligocene transition in south-eastern France and their palaeoenvironmental implications [PDF]

open access: yes, 2013
International audienceEnigmatic biogenic structures are reported from the Palaeogene of south-eastern France in the Castellane-Blieux area (Alpes de Haute-Provence French Department). They occur at the Eocene/Oligocene transition at the top of the Marnes
Chebance, Marie   +2 more
core   +3 more sources

Low incidence of atrial septal defects in nonmammalian vertebrates

open access: yesEvolution &Development, Volume 22, Issue 3, Page 241-256, May 2020., 2020
The atrial septum (arrow) of the African helmeted turtle. There is a low incidence of atrial septal defects in nonmammalian vertebrates. Abstract The atrial septum enables efficient oxygen transport by separating the systemic and pulmonary venous blood returning to the heart.
Bjarke Jensen   +5 more
wiley   +1 more source

Genetic and functional diversity of the multiple lungfish myoglobins

open access: yesThe FEBS Journal, Volume 287, Issue 8, Page 1598-1611, April 2020., 2020
The lungfish harbors multiple copies of the oxygen‐binding protein myoglobin (Mb). Amplification of this gene occurred during an early stage of lungfish evolution. The Mbs are differentially expressed throughout various tissues and display different abilities to bind oxygen or act as enzymes. Remarkably, the main expression site of the Mbs is the brain
Julia Lüdemann   +6 more
wiley   +1 more source

The Immunoglobulins of Cold-Blooded Vertebrates [PDF]

open access: yes, 2014
Peer reviewedPublisher ...
Chen   +22 more
core   +2 more sources

Phylogenetic non-independence in rates of trait evolution [PDF]

open access: yes, 2018
Statistical non-independence of species’ biological traits is recognized in most traits under selection. Yet, whether or not the evolutionary rates of such biological traits are statistically non-independent remains to be tested.
Chris Venditti   +6 more
core   +1 more source

Diverse New Microvertebrate Assemblage from the Upper Triassic Cumnock Formation, Sanford Subbasin, North Carolina, USA [PDF]

open access: yes, 2012
The Moncure microvertebrate locality in the Cumnock Formation, Sanford sub-basin, North Carolina, dramatically increases the known Late Triassic age vertebrate assemblage from the Deep River Basin.
Andrew B. Heckert   +110 more
core   +2 more sources

The radiation of cynodonts and the ground plan of mammalian morphological diversity [PDF]

open access: yes, 2013
Cynodont therapsids diversified extensively after the Permo-Triassic mass extinction event, and gave rise to mammals in the Jurassic. We use an enlarged and revised dataset of discrete skeletal characters to build a new phylogeny for all main cynodont ...
Anderson MJ   +17 more
core   +1 more source

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