Results 171 to 180 of about 1,690 (206)
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Placoderm interrelationships: a new interpretation, with a short review of placoderm classifications

1984
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Dynamics of placoderm distribution in the Prague Basin (Czech Republic)

GFF, 2014
The occurrence of placoderms in the Prague Basin (Bohemian Massif; Czech Republic) shows a very unsteady distribution in space and time. The most abundant specimens are in the Lochkovian and, through decrease in the Pragian, they become rare towards the Givetian.
Valéria Vaškaninová, Petr Kraft
openaire   +1 more source

Placoderm fishes: diversity through time

1991
Abstract The placoderms, with 250 genera, constitute a small but much diversified group of bony fishes. They are sometimes classified as stem-group osteichthyans and, together with the acanthodians, are the earliest true jawed fishes. They are found in the mid-Silurian, but flourished in the Devonian reaching their greatest diversity in ...
openaire   +1 more source

The first placoderm fish from the Lower Devonian of Poland

Journal of Vertebrate Paleontology, 2015
Fossils remains of placoderms are so characteristic for the Lower Devonian deposits in the Holy Cross Mountains, central Poland (Gurich, 1896), that these rocks are colloquially named the ‘Placoder...
Piotr Szrek   +2 more
openaire   +1 more source

New placoderm fishes from the Late Devonian of South Africa

Journal of Vertebrate Paleontology, 1997
ABSTRACT New placoderm fishes are described from a black shale lens in the Famennian Witpoort Formation, near Grahamstown, South Africa. Arthrodires include a new species of Groenlandaspis, G. riniensis sp. nov., a new genus of groenlandaspidid, Africanaspis doryssa gen. et sp. nov., and a new species of the antiarch Bothriolepis, B. africana sp.
Long, John A   +3 more
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Les affinités des placodermes, une revue des hypothèses actuelles

Geobios, 1982
Resume Les relations phyletiques des Placodermes sont revues a la lumiere des decouvertes de cette derniere decennie, en utilisant la methodologie cladistique. Les opinions concernant la monophylie ou la paraphylie des Placodermes sont presentees et discutees.
openaire   +1 more source

Functional and Ontogenetic Implications of Bite Stress in Arthrodire Placoderms

2010
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Snively, E, Anderson, PSL, Ryan, MJ
openaire   +1 more source

The Evolution of Vertebrate Dermal Jaw Bones in the Light of Maxillate Placoderms

Evolution and Development of Fishes, 2018
You-an Zhu, P. Ahlberg, M. Zhu
semanticscholar   +1 more source

Placoderm Morphology

2018
Kate Trinajstic, Kate Roelofs
openaire   +1 more source

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