Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin
Nipponosaurus sachalinensis is the only definitive lambeosaurine hadrosaurid from Sakhalin Island of Russia. Previous studies suggested it was a member of Lambeosaurini (derived lambeosaurines). However, its phylogenetic status within Lambeosaurini remains controversial. In addition, some studies ar...
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Taylor & Francis
2017
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ftdatacite:10.6084/m9.figshare.4978298 2023-05-15T18:09:00+02:00 Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin Takasaki, Ryuji Chiba, Kentaro Yoshitsugu Kobayashi Currie, Philip J. Fiorillo, Anthony R. 2017 https://dx.doi.org/10.6084/m9.figshare.4978298 https://tandf.figshare.com/articles/dataset/Reanalysis_of_the_phylogenetic_status_of_i_Nipponosaurus_sachalinensis_i_Ornithopoda_Dinosauria_from_the_Late_Cretaceous_of_Southern_Sakhalin/4978298 unknown Taylor & Francis https://dx.doi.org/10.1080/08912963.2017.1317766 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified dataset Dataset 2017 ftdatacite https://doi.org/10.6084/m9.figshare.4978298 https://doi.org/10.1080/08912963.2017.1317766 2021-11-05T12:55:41Z Nipponosaurus sachalinensis is the only definitive lambeosaurine hadrosaurid from Sakhalin Island of Russia. Previous studies suggested it was a member of Lambeosaurini (derived lambeosaurines). However, its phylogenetic status within Lambeosaurini remains controversial. In addition, some studies argued the juvenile ontogenetic stage of the holotype and regarded Nipponosaurus as an invalid taxon. In order to solve these problems, its definite growth stage is determined through histological studies. Absence of a line of arrested growth, presence of osteons with large vascular spaces, and presence of primary bone remnants even in the highly modified regions of the femur confirm that the holotype was a juvenile. More than a hundred of the 350 characters used to determine the phylogenetic position of Nipponosaurus are ontogenetically variable characters based on the different ontogenetic stages of Hypacrosaurus stebingeri . Our phylogenetic analysis reveals that Nipponosaurus is a basal lambeosaurine hadrosaurid, much further down in the tree than previously suggested, and shows a polytomy with Blasisaurus and Arenyisaurus . This study also indicates that Nipponosaurus is a valid taxon because it possesses unique characters within the Lambeosaurinae (presence of massive surangular anterodorsal process, presence of lateral shelf of the dentary, and a relatively short ulna), which are independent of ontogeny. Dataset Sakhalin DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified |
spellingShingle |
Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Takasaki, Ryuji Chiba, Kentaro Yoshitsugu Kobayashi Currie, Philip J. Fiorillo, Anthony R. Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |
topic_facet |
Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified |
description |
Nipponosaurus sachalinensis is the only definitive lambeosaurine hadrosaurid from Sakhalin Island of Russia. Previous studies suggested it was a member of Lambeosaurini (derived lambeosaurines). However, its phylogenetic status within Lambeosaurini remains controversial. In addition, some studies argued the juvenile ontogenetic stage of the holotype and regarded Nipponosaurus as an invalid taxon. In order to solve these problems, its definite growth stage is determined through histological studies. Absence of a line of arrested growth, presence of osteons with large vascular spaces, and presence of primary bone remnants even in the highly modified regions of the femur confirm that the holotype was a juvenile. More than a hundred of the 350 characters used to determine the phylogenetic position of Nipponosaurus are ontogenetically variable characters based on the different ontogenetic stages of Hypacrosaurus stebingeri . Our phylogenetic analysis reveals that Nipponosaurus is a basal lambeosaurine hadrosaurid, much further down in the tree than previously suggested, and shows a polytomy with Blasisaurus and Arenyisaurus . This study also indicates that Nipponosaurus is a valid taxon because it possesses unique characters within the Lambeosaurinae (presence of massive surangular anterodorsal process, presence of lateral shelf of the dentary, and a relatively short ulna), which are independent of ontogeny. |
format |
Dataset |
author |
Takasaki, Ryuji Chiba, Kentaro Yoshitsugu Kobayashi Currie, Philip J. Fiorillo, Anthony R. |
author_facet |
Takasaki, Ryuji Chiba, Kentaro Yoshitsugu Kobayashi Currie, Philip J. Fiorillo, Anthony R. |
author_sort |
Takasaki, Ryuji |
title |
Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |
title_short |
Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |
title_full |
Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |
title_fullStr |
Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |
title_full_unstemmed |
Reanalysis of the phylogenetic status of Nipponosaurus sachalinensis (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |
title_sort |
reanalysis of the phylogenetic status of nipponosaurus sachalinensis (ornithopoda: dinosauria) from the late cretaceous of southern sakhalin |
publisher |
Taylor & Francis |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.4978298 https://tandf.figshare.com/articles/dataset/Reanalysis_of_the_phylogenetic_status_of_i_Nipponosaurus_sachalinensis_i_Ornithopoda_Dinosauria_from_the_Late_Cretaceous_of_Southern_Sakhalin/4978298 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_relation |
https://dx.doi.org/10.1080/08912963.2017.1317766 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.4978298 https://doi.org/10.1080/08912963.2017.1317766 |
_version_ |
1766181400205066240 |