Results 51 to 60 of about 173 (124)

A novel specimen-based mid-Paleozoic dataset of antiarch placoderms (the most basal jawed vertebrates)

open access: yesEarth System Science Data, 2023
Abstract. Antiarcha data are essential to quantitative studies of basal jawed vertebrates. The absence of structured data on key groups of early vertebrates, such as Antiarcha, has lagged in understanding their diversity and distribution patterns. Previous works of early vertebrates usually focused on anatomy and phylogeny, given their significant ...
Z. Pan   +5 more
openaire   +3 more sources

Les grès rouges de l'Armutgôzlek Tepe : leur faune de Poissons (Antiarches Arthrodires et Crossoptérygiens) d'âge dévonien supérieur (Nappes d'Antalya, Taurides occidentales — Turquie — )

open access: yes, 1977
The red sandstones of Armutgôzlek Tepe : Upper Devonian fish fauna (antiarchs, arthrodires and crossopterygians) of the Antalya Nappes, Western Taurides (Turkey) : The red sandstone horizon containing fish remains (antiarchs, arthrodires and ...
Janvier, Philippe, Marcoux, Jean
core   +1 more source

Late Devonian antiarch remains (placoderm fish) from the Gilberton Formation, north Queensland

open access: yesMemoirs of the Queensland Museum - Nature, 2020
New Devonian fish remains are described from the lower part of the Gilberton Formation of north Queensland, the first identifiable specimens found since the original specimen was described in 1936. They include the first determinable dermal skull bones from this deposit.
Gavin Young, Carole Burrow
openaire   +1 more source

Bothriolepis Eichwald 1840

open access: yes, 2001
<p> Genus <i>Bothriolepis</i> Eichwald, 1840</p> <p> TYPE SPECIES. — <i>Bothriolepis ornata</i> Eichwald, 1840, subsequently designated by Woodward (1891).</p> <p>DIAGNOSIS.
Lukševičs, Erwin
core   +1 more source

Bothriolepididae Cope 1886

open access: yes, 2001
<p>Family BOTHRIOLEPIDIDAE Cope, 1886</p> <p>DIAGNOSIS. — Bothriolepidoids with a small Pp separated from the La by the Nu, which forms part of the posterior margin of the orbital fenestra.
Lukševičs, Erwin
core   +1 more source

A new species of the antiarch Microbrachius from the Middle Devonian (Givetian) of Estonia

open access: yesPalaeontologia Electronica
Mark-Kurik, Elga, Newman, Michael J., L., Jan, Jones, Roger (2025): A new species of the antiarch Microbrachius from the Middle Devonian (Givetian) of Estonia.
Mark-Kurik, Elga   +3 more
openaire   +2 more sources

A well-preserved 'placoderm' (stem-group Gnathostomata) upper jaw from the Early Devonian of Mongolia clarifies jaw evolution. [PDF]

open access: yesR Soc Open Sci, 2023
Brazeau MD   +7 more
europepmc   +1 more source

A virtual world of paleontology [PDF]

open access: yes, 2014
Computer-aided visualization and analysis of fossils has revolutionized the study of extinct organisms. Novel techniques allow fossils to be characterized in three dimensions and in unprecedented detail. This has enabled paleontologists to gain important
Donoghue, PCJ   +19 more
core   +1 more source

Copulation in antiarch placoderms and the origin of gnathostome internal fertilization

open access: yes, 2015
Reproduction in jawed vertebrates (gnathostomes) involves either external or internal fertilization1. It is commonly argued that internal fertilization can evolve from external, but not the reverse.
J. Long (2926500)   +11 more
core  

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