Results 11 to 20 of about 1,575 (199)

Distributional patterns of ?Mawsoniidae (Sarcopterygii: Actinistia) [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2014
Mawsoniidae are a fossil family of actinistian fish popularly known as coelacanths, which are found in continental and marine paleoenvironments. The taxon is considered monophyletic, including five valid genera (Axelrodichthys, Chinlea, Diplurus ...
RAPHAEL MIGUEL   +2 more
doaj   +6 more sources

Conservation of Intronic Sequences in Vertebrate Mitochondrial Solute Carrier Genes (Zebrafish, Chicken, Mouse and Human)

open access: yesNon-Coding RNA, 2019
The conservation of intronic sequences was studied in the mitochondrial solute carrier (SLC25A*) genes of Zebrafish, Chicken, Mouse and Human. These genes are homologous and the coding sequences have been well conserved throughout Vertebrates, but the ...
Rosa Calvello   +4 more
doaj   +2 more sources

A high latitude Gondwanan species of the Late Devonian tristichopterid Hyneria (Osteichthyes: Sarcopterygii).

open access: yesPLoS ONE, 2023
We describe the largest bony fish in the Late Devonian (late Famennian) fossil assemblage from Waterloo Farm near Makhanda/Grahamstown, South Africa. It is a giant member of the extinct clade Tristichopteridae (Sarcopterygii: Tetrapodomorpha) and most ...
Robert W Gess, Per E Ahlberg
doaj   +5 more sources

The first virtual cranial endocast of a lungfish (sarcopterygii: dipnoi).

open access: yesPLoS ONE, 2014
Lungfish, or dipnoans, have a history spanning over 400 million years and are the closest living sister taxon to the tetrapods. Most Devonian lungfish had heavily ossified endoskeletons, whereas most Mesozoic and Cenozoic lungfish had largely ...
Alice M Clement, Per E Ahlberg
doaj   +4 more sources

The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi) [PDF]

open access: yesZoological Journal of the Linnean Society, 2015
Criswell, Katharine E. (2015): The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi).
Criswell, Katharine E.   +1 more
openaire   +2 more sources

Histology of juvenile skin of Lepidosiren paradoxa Fitzinger, 1837 (Sarcopterygii, Dipnoi) [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2019
: The skin of three juvenile Lepidosiren paradoxa specimens was examined. The epidermis was composed of a polystratified epithelium resting on a basement membrane, including mucus-secreting cells, and a cuticle of mucopolysaccharides on the surface.
LUIS ALBERTO ROMANO   +3 more
doaj   +4 more sources

The cranial endocast of Dipnorhynchus sussmilchi (Sarcopterygii: Dipnoi) and the interrelationships of stem-group lungfishes [PDF]

open access: yesPeerJ, 2016
The first virtual cranial endocast of a lungfish from the Early Devonian, Dipnorhynchus sussmilchi, is described. Dipnorhynchus, only the fourth Devonian lungfish for which a near complete cranial endocast is known, is a key taxon for clarifying ...
Alice M. Clement   +3 more
doaj   +7 more sources

First record ofPorolepis(Sarcopterygii; Porolepiformes) from eastern Gondwana

open access: yesCanadian Journal of Earth Sciences, 2013
Porolepiformes (Sarcopterygii) are poorly represented in the Devonian of Australia and eastern Gondwana as a whole. New cosmine-covered lower jaws from the Mulga Downs Group, western New South Wales (?Pragian–Emsian or Eifelian), represent the first occurrence of Porolepis in Australia, a genus formerly known exclusively from the Northern Hemisphere ...
Zerina Johanson   +2 more
openaire   +2 more sources

Ecomorphological change in lobe-finned fishes (Sarcopterygii): disparity and rates [PDF]

open access: yes, 2015
Patterns of vertebrate cranial/post-cranial trait diversification are not well-understood. Two ecological hypotheses, the ‘head-first’ model and the ‘stages’ model, predict the ordered decoupling of cranial/post-cranial ecomorphological ...
Juarez, Bryan
core   +7 more sources

Lung evolution in vertebrates and the water-to-land transition

open access: yeseLife, 2022
A crucial evolutionary change in vertebrate history was the Palaeozoic (Devonian 419–359 million years ago) water-to-land transition, allowed by key morphological and physiological modifications including the acquisition of lungs. Nonetheless, the origin
Camila Cupello   +12 more
doaj   +1 more source

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