Results 111 to 120 of about 169 (124)

Arthodires, Antiarchs, and Acanthodians: The Poetry of Homer Smith

Seminars in Dialysis, 2002
exaly   +2 more sources

Ontogenetic development of antiarch dermal ossifications

Geobios, 1995
Abstract The histological structure of the dermal ossifications of juvenile and adult Asterolepis (Placodermi, Antiarchi) isdescribed. Six development stages of the dermal ossifications are described in living soft-shelled turtle (Trionyx). An attempt of reconstruction of the dermal plates and scales development in Asterolepis is made using a ...
Alexandre Ivanov, Gennady Cherepanov, Ervins Luskevics   +2 more
openaire   +1 more source

New insights from network analysis on the biogeography of antiarchs (jawed stem-Gnathostomata)

Palaeoworld
Zhibin Niu
exaly   +2 more sources

Allometry in the placoderm Bothriolepis canadensis and its significance to antiarch evolution

Lethaia, 1986
Allometry in the placoderm Bothriolepis canadensis and its significance to antiarch ...
Lars Werdelin, John A. Long
openaire   +1 more source

Devonian Antiarch Biostratigraphy of China

Geological Magazine, 1981
SummaryDevonian Antiarchi in China are chiefly distributed in the S and W of the country. They are represented by 17 genera and more than 26 species, of which three genera are cosmopolitan, namely Asterolepis, Bothriolepis and Remigolepis. The early Devonian Antiarchi fauna, Yunnanolepis, Phymolepis, Zhanjilepis, is an East Asiatic fauna.
openaire   +1 more source

A small antiarch,Minicrania lirouyiigen. et sp. nov., from the Early Devonian of Qujing, Yunnan (China), with remarks on antiarch phylogeny

Journal of Vertebrate Paleontology, 1996
ABSTRACT A new Early Devonian (Lochkovian) yunnanolepiform-like antiarch Minicrania lirouyii gen. et sp. nov. is described from Qujing, Yunnan, southeastern China. This tiny antiarch possesses both a preorbital depression and a preorbital recess. It is characterized by a long and narrow skull-roof, short obstantic margin, large orbital fenestra, fairly
Min Zhu, Philippe Janvier
openaire   +1 more source

A new antiarch (placoderm fish) from the Early Devonian of South China

Alcheringa: An Australasian Journal of Palaeontology, 1992
A new bothriolepidoid antiarch of small size, Luquanolepis pileos gen. et sp. nov. is described from the Early Devonian of Luquan County, Yunnan Province. Only remains of the trunk armour are known. It is characterised by the long dorsal wall, with a strong posterior process formed by the posterior median dorsal and posterior dorsolateral plates, the ...
Zhang Guorui, G.C. Young
openaire   +1 more source

A basal antiarch (placoderm fish) from the Silurian of Qujing, Yunnan, China

Palaeoworld, 2010
Abstract A new basal antiarch, Silurolepis platydorsalis n. gen. n. sp., represented by a large-sized trunk armor and a disassociated anterior median dorsal plate (AMD), is described from the Ludlow (Silurian) of Qujing, Yunnan, southwestern China.
Guo-Rui Zhang, Shi-Tao Wang, Jun-Qing Wang, Nian-Zhong Wang, Min Zhu   +4 more
openaire   +1 more source

Les vertebres devoniens de l'Iran central. III: Antiarches

Geobios, 1979
Resume Le Devonien superieur de la region de Kerman (Iran central) n'a livre que tres peu de restes d'Antiarches.Certains d'entre eux peuvent etre attribues au genre Asterolepis, de repartition quasi mondiale, tandis que d'autres sont rapproches des genres Byssacanthus et Stegolepis, connus jusqu'alors uniquement dans le Devonien moyen et superieur d'
openaire   +1 more source

A new antiarch fish from the Upper Devonian Zhongning Formation of Ningxia, China

Palaeoworld, 2010
A new antiarch, Ningxialepis spinosa n. gen. n. sp., is described from the Zhongning Formation (Famennian, Late Devonian) of Shixiagou, Qingtongxia, Ningxia, northwestern China. It is characterized by the presence of X-shaped pit-lines, long obstantic margins, high dorsal median spine of the trunk armour formed from the anterior and posterior median ...
Lian-Tao Jia, Min Zhu, Wen-Jin Zhao
openaire   +1 more source