A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition
A new dipnoan lower jaw from the Wood Bay Formation (Pragian) of Svalbard (Norway), preserves a partial dentary and partial toothplates referred to the new species Janvierpaucidentes tuulingi gen. et sp. nov. The more complete toothplate is elongate with three short rows of teeth but is damaged medi...
Published in: | Spanish Journal of Palaeontology |
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Language: | English |
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Sociedad Española de Paleontología (SEP)
2023
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Online Access: | https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647 https://doi.org/10.7203/sjp.26647 |
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ftunivalenciaojs:oai:ojs.uv.es:article/26647 2023-07-02T03:33:49+02:00 A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition Johanson, Zerina Newman, Michael Rangel-De Lazaro, Gizeh Smith, Moya M. Jones, Roger 2023-05-22 application/pdf https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647 https://doi.org/10.7203/sjp.26647 eng eng Sociedad Española de Paleontología (SEP) https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647/22506 https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647 doi:10.7203/sjp.26647 Copyright (c) 2023 Johanson Johanson, Michael Newman, Gizeh Rangel-De Lazaro, Moya M. Smith, Roger Jones http://creativecommons.org/licenses/by-nc/4.0 Spanish Journal of Palaeontology; EARLY VIEW - SPANISH JOURNAL OF PALAEONTOLOGY 2660-9568 2255-0550 paleontología de vertebrados taxonomía Dipnoi Svalbard early Devonian Pragian Wood Bay Formation Carboniferous info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo revisado por pares 2023 ftunivalenciaojs https://doi.org/10.7203/sjp.26647 2023-06-13T23:04:47Z A new dipnoan lower jaw from the Wood Bay Formation (Pragian) of Svalbard (Norway), preserves a partial dentary and partial toothplates referred to the new species Janvierpaucidentes tuulingi gen. et sp. nov. The more complete toothplate is elongate with three short rows of teeth but is damaged medially. A large number of dipnoans are known from the early Devonian, showing a range of dentitions. Other tooth-plated dipnoans from this time period include Diabolepis speratus, Speonesydrion iani, Tarachomylax oepiki, Tarachomylax multicostatus, Ichnomylax kurnae and Ichnomylax karatajae, and two unnamed toothplates from Vietnam. In Melanognathus canadensis, rows of teeth are located along the prearticular, which is otherwise covered in a shagreen of denticles; this denticle-dominated dentition also characterized Uranolophus wyomingensis. The dentition of Janvierpaucidentes tuulingi differs from these toothplate morphologies and is highly unusual in having the more rostral and caudal tooth rows nearly paralleling the jaw margin, with a maximum angle between the tooth rows approaching 180 degrees. In this character, Janvierpaucidentes tuulingi is more comparable to taxa such as Xylognathus macrustenus from the Carboniferous, increasing the already high disparity of lungfish dental morphology in the Devonian. Article in Journal/Newspaper Svalbard Universitat de València: Open Journal Systems Mimerdalen ENVELOPE(16.277,16.277,78.647,78.647) Norway Svalbard Wood Bay ENVELOPE(165.500,165.500,-74.217,-74.217) Spanish Journal of Palaeontology |
institution |
Open Polar |
collection |
Universitat de València: Open Journal Systems |
op_collection_id |
ftunivalenciaojs |
language |
English |
topic |
paleontología de vertebrados taxonomía Dipnoi Svalbard early Devonian Pragian Wood Bay Formation Carboniferous |
spellingShingle |
paleontología de vertebrados taxonomía Dipnoi Svalbard early Devonian Pragian Wood Bay Formation Carboniferous Johanson, Zerina Newman, Michael Rangel-De Lazaro, Gizeh Smith, Moya M. Jones, Roger A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition |
topic_facet |
paleontología de vertebrados taxonomía Dipnoi Svalbard early Devonian Pragian Wood Bay Formation Carboniferous |
description |
A new dipnoan lower jaw from the Wood Bay Formation (Pragian) of Svalbard (Norway), preserves a partial dentary and partial toothplates referred to the new species Janvierpaucidentes tuulingi gen. et sp. nov. The more complete toothplate is elongate with three short rows of teeth but is damaged medially. A large number of dipnoans are known from the early Devonian, showing a range of dentitions. Other tooth-plated dipnoans from this time period include Diabolepis speratus, Speonesydrion iani, Tarachomylax oepiki, Tarachomylax multicostatus, Ichnomylax kurnae and Ichnomylax karatajae, and two unnamed toothplates from Vietnam. In Melanognathus canadensis, rows of teeth are located along the prearticular, which is otherwise covered in a shagreen of denticles; this denticle-dominated dentition also characterized Uranolophus wyomingensis. The dentition of Janvierpaucidentes tuulingi differs from these toothplate morphologies and is highly unusual in having the more rostral and caudal tooth rows nearly paralleling the jaw margin, with a maximum angle between the tooth rows approaching 180 degrees. In this character, Janvierpaucidentes tuulingi is more comparable to taxa such as Xylognathus macrustenus from the Carboniferous, increasing the already high disparity of lungfish dental morphology in the Devonian. |
format |
Article in Journal/Newspaper |
author |
Johanson, Zerina Newman, Michael Rangel-De Lazaro, Gizeh Smith, Moya M. Jones, Roger |
author_facet |
Johanson, Zerina Newman, Michael Rangel-De Lazaro, Gizeh Smith, Moya M. Jones, Roger |
author_sort |
Johanson, Zerina |
title |
A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition |
title_short |
A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition |
title_full |
A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition |
title_fullStr |
A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition |
title_full_unstemmed |
A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition |
title_sort |
new dipnoan species janvierpaucidentes tuulingi gen. et sp. nov. from the pragian (early devonian) of mimerdalen, svalbard (norway), with an unusual dentition |
publisher |
Sociedad Española de Paleontología (SEP) |
publishDate |
2023 |
url |
https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647 https://doi.org/10.7203/sjp.26647 |
long_lat |
ENVELOPE(16.277,16.277,78.647,78.647) ENVELOPE(165.500,165.500,-74.217,-74.217) |
geographic |
Mimerdalen Norway Svalbard Wood Bay |
geographic_facet |
Mimerdalen Norway Svalbard Wood Bay |
genre |
Svalbard |
genre_facet |
Svalbard |
op_source |
Spanish Journal of Palaeontology; EARLY VIEW - SPANISH JOURNAL OF PALAEONTOLOGY 2660-9568 2255-0550 |
op_relation |
https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647/22506 https://ojs.uv.es/index.php/sjpalaeontology/article/view/26647 doi:10.7203/sjp.26647 |
op_rights |
Copyright (c) 2023 Johanson Johanson, Michael Newman, Gizeh Rangel-De Lazaro, Moya M. Smith, Roger Jones http://creativecommons.org/licenses/by-nc/4.0 |
op_doi |
https://doi.org/10.7203/sjp.26647 |
container_title |
Spanish Journal of Palaeontology |
_version_ |
1770273927192379392 |