New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region

New Pridoli to Eifelian acanthodian scales from various structural units of the Timan-Pechora region are described. Among 15 new species and 1 new genus, there are: 10 new species of nostolepids, common members of most of the biostratigraphic associations, the monospecific genus Monospina gen. nov.,...

Full description

Bibliographic Details
Main Author: Valiukevicius, Juozas
Format: Article in Journal/Newspaper
Language:English
Published: Faculty of Geology University of Warsaw 2003
Subjects:
Acanthodians
Nostolepids
Climatiids
Diplacanthids
Ischnacanthids
L ate Silurian
Early Devonian
Middle Devonian
Pechora
Online Access:https://gq.pgi.gov.pl/agp/article/view/9731
id ftjgq:oai:geojournals.pgi.gov.pl:article/9731
record_format openpolar
spelling ftjgq:oai:geojournals.pgi.gov.pl:article/9731 2024-09-15T18:29:12+00:00 New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region Valiukevicius, Juozas 2003-09-30 application/pdf https://gq.pgi.gov.pl/agp/article/view/9731 eng eng Faculty of Geology University of Warsaw https://gq.pgi.gov.pl/agp/article/view/9731/8267 https://gq.pgi.gov.pl/agp/article/view/9731 Acta Geologica Polonica; Vol. 53 No. 3 (2003); 209-245 Acta Geologica Polonica; Tom 53 Nr 3 (2003); 209-245 Acanthodians Nostolepids Climatiids Diplacanthids Ischnacanthids L ate Silurian Early Devonian Middle Devonian info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2003 ftjgq 2024-07-30T03:29:09Z New Pridoli to Eifelian acanthodian scales from various structural units of the Timan-Pechora region are described. Among 15 new species and 1 new genus, there are: 10 new species of nostolepids, common members of most of the biostratigraphic associations, the monospecific genus Monospina gen. nov., a single new species of Cheiracanthoides (all Climatiida), Diplacanthus pechorensis sp. nov. (Diplacanthida), and two new species of Gomphonchus (Ischnacanthida). Besides morphologic descriptions the taxa are also characterised histologically. Acanthodian taxa with scale crowns and bases composed of cellular bone, or very similar tissue, proposed as a primitive feature in their evolution, are reported for the first time. Article in Journal/Newspaper Pechora Geological Quarterly
institution Open Polar
collection Geological Quarterly
op_collection_id ftjgq
language English
topic Acanthodians
Nostolepids
Climatiids
Diplacanthids
Ischnacanthids
L ate Silurian
Early Devonian
Middle Devonian
spellingShingle Acanthodians
Nostolepids
Climatiids
Diplacanthids
Ischnacanthids
L ate Silurian
Early Devonian
Middle Devonian
Valiukevicius, Juozas
New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region
topic_facet Acanthodians
Nostolepids
Climatiids
Diplacanthids
Ischnacanthids
L ate Silurian
Early Devonian
Middle Devonian
description New Pridoli to Eifelian acanthodian scales from various structural units of the Timan-Pechora region are described. Among 15 new species and 1 new genus, there are: 10 new species of nostolepids, common members of most of the biostratigraphic associations, the monospecific genus Monospina gen. nov., a single new species of Cheiracanthoides (all Climatiida), Diplacanthus pechorensis sp. nov. (Diplacanthida), and two new species of Gomphonchus (Ischnacanthida). Besides morphologic descriptions the taxa are also characterised histologically. Acanthodian taxa with scale crowns and bases composed of cellular bone, or very similar tissue, proposed as a primitive feature in their evolution, are reported for the first time.
format Article in Journal/Newspaper
author Valiukevicius, Juozas
author_facet Valiukevicius, Juozas
author_sort Valiukevicius, Juozas
title New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region
title_short New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region
title_full New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region
title_fullStr New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region
title_full_unstemmed New Late Silurian to Middle Devonian acanthodians of the Timan-Pechora region
title_sort new late silurian to middle devonian acanthodians of the timan-pechora region
publisher Faculty of Geology University of Warsaw
publishDate 2003
url https://gq.pgi.gov.pl/agp/article/view/9731
genre Pechora
genre_facet Pechora
op_source Acta Geologica Polonica; Vol. 53 No. 3 (2003); 209-245
Acta Geologica Polonica; Tom 53 Nr 3 (2003); 209-245
op_relation https://gq.pgi.gov.pl/agp/article/view/9731/8267
https://gq.pgi.gov.pl/agp/article/view/9731
_version_ 1810470616589926400

Similar Items