Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite

Autores
Scheyer, Torsten M.; Spiekman, Stephan N. F.; Sues, Hans Dieter; Ezcurra, Martin Daniel; Butler, Richard J.; Jones, Marc E. H.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Correctly identifying taxa at the root of major clades or the oldest clade-representatives is critical for meaningful interpretations of evolution. A small, partially crushed skull from the Late Triassic (Norian) of Connecticut, USA, originally described as an indeterminate rhynchocephalian saurian, was recently named Colobops noviportensis and reinterpreted as sister to all remaining Rhynchosauria, one of the earliest and globally distributed groups of herbivorous reptiles. It was also interpreted as having an exceptionally reinforced snout and powerful bite based on an especially large supratemporal fenestra. Here, after a re-analysis of the original scan data, we show that the skull was strongly dorsoventrally compressed post-mortem, with most bones out of life position. The cranial anatomy is consistent with that of other rhynchocephalian lepidosauromorphs, not rhynchosaurs. The 'reinforced snout' region and the 'exceptionally enlarged temporal region' are preservational artefacts and not exceptional among clevosaurid rhynchocephalians. Colobops is thus not a key taxon for understanding diapsid feeding apparatus evolution.
Fil: Scheyer, Torsten M.. Universitat Zurich; Suiza
Fil: Spiekman, Stephan N. F.. Universitat Zurich; Suiza
Fil: Sues, Hans Dieter. Natural History Museum; Reino Unido
Fil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Butler, Richard J.. University of Birmingham; Reino Unido
Fil: Jones, Marc E. H.. University College London; Estados Unidos
Materia
COLOBOPS NOVIPORTENSIS
DIAPSIDA
FEEDING APPARATUS
RHYNCHOCEPHALIA
TRIASSIC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/132840
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong biteScheyer, Torsten M.Spiekman, Stephan N. F.Sues, Hans DieterEzcurra, Martin DanielButler, Richard J.Jones, Marc E. H.COLOBOPS NOVIPORTENSISDIAPSIDAFEEDING APPARATUSRHYNCHOCEPHALIATRIASSIChttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Correctly identifying taxa at the root of major clades or the oldest clade-representatives is critical for meaningful interpretations of evolution. A small, partially crushed skull from the Late Triassic (Norian) of Connecticut, USA, originally described as an indeterminate rhynchocephalian saurian, was recently named Colobops noviportensis and reinterpreted as sister to all remaining Rhynchosauria, one of the earliest and globally distributed groups of herbivorous reptiles. It was also interpreted as having an exceptionally reinforced snout and powerful bite based on an especially large supratemporal fenestra. Here, after a re-analysis of the original scan data, we show that the skull was strongly dorsoventrally compressed post-mortem, with most bones out of life position. The cranial anatomy is consistent with that of other rhynchocephalian lepidosauromorphs, not rhynchosaurs. The 'reinforced snout' region and the 'exceptionally enlarged temporal region' are preservational artefacts and not exceptional among clevosaurid rhynchocephalians. Colobops is thus not a key taxon for understanding diapsid feeding apparatus evolution.Fil: Scheyer, Torsten M.. Universitat Zurich; SuizaFil: Spiekman, Stephan N. F.. Universitat Zurich; SuizaFil: Sues, Hans Dieter. Natural History Museum; Reino UnidoFil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Butler, Richard J.. University of Birmingham; Reino UnidoFil: Jones, Marc E. H.. University College London; Estados UnidosThe Royal Society2020-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/132840Scheyer, Torsten M.; Spiekman, Stephan N. F.; Sues, Hans Dieter; Ezcurra, Martin Daniel; Butler, Richard J.; et al.; Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite; The Royal Society; Royal Society Open Science; 7; 3; 3-2020; 1-142054-57032054-5703CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rsos.192179info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.192179info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:21Zoai:ri.conicet.gov.ar:11336/132840instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:25:21.845CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
title Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
spellingShingle Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
Scheyer, Torsten M.
COLOBOPS NOVIPORTENSIS
DIAPSIDA
FEEDING APPARATUS
RHYNCHOCEPHALIA
TRIASSIC
title_short Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
title_full Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
title_fullStr Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
title_full_unstemmed Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
title_sort Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite
dc.creator.none.fl_str_mv Scheyer, Torsten M.
Spiekman, Stephan N. F.
Sues, Hans Dieter
Ezcurra, Martin Daniel
Butler, Richard J.
Jones, Marc E. H.
author Scheyer, Torsten M.
author_facet Scheyer, Torsten M.
Spiekman, Stephan N. F.
Sues, Hans Dieter
Ezcurra, Martin Daniel
Butler, Richard J.
Jones, Marc E. H.
author_role author
author2 Spiekman, Stephan N. F.
Sues, Hans Dieter
Ezcurra, Martin Daniel
Butler, Richard J.
Jones, Marc E. H.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv COLOBOPS NOVIPORTENSIS
DIAPSIDA
FEEDING APPARATUS
RHYNCHOCEPHALIA
TRIASSIC
topic COLOBOPS NOVIPORTENSIS
DIAPSIDA
FEEDING APPARATUS
RHYNCHOCEPHALIA
TRIASSIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Correctly identifying taxa at the root of major clades or the oldest clade-representatives is critical for meaningful interpretations of evolution. A small, partially crushed skull from the Late Triassic (Norian) of Connecticut, USA, originally described as an indeterminate rhynchocephalian saurian, was recently named Colobops noviportensis and reinterpreted as sister to all remaining Rhynchosauria, one of the earliest and globally distributed groups of herbivorous reptiles. It was also interpreted as having an exceptionally reinforced snout and powerful bite based on an especially large supratemporal fenestra. Here, after a re-analysis of the original scan data, we show that the skull was strongly dorsoventrally compressed post-mortem, with most bones out of life position. The cranial anatomy is consistent with that of other rhynchocephalian lepidosauromorphs, not rhynchosaurs. The 'reinforced snout' region and the 'exceptionally enlarged temporal region' are preservational artefacts and not exceptional among clevosaurid rhynchocephalians. Colobops is thus not a key taxon for understanding diapsid feeding apparatus evolution.
Fil: Scheyer, Torsten M.. Universitat Zurich; Suiza
Fil: Spiekman, Stephan N. F.. Universitat Zurich; Suiza
Fil: Sues, Hans Dieter. Natural History Museum; Reino Unido
Fil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Butler, Richard J.. University of Birmingham; Reino Unido
Fil: Jones, Marc E. H.. University College London; Estados Unidos
description Correctly identifying taxa at the root of major clades or the oldest clade-representatives is critical for meaningful interpretations of evolution. A small, partially crushed skull from the Late Triassic (Norian) of Connecticut, USA, originally described as an indeterminate rhynchocephalian saurian, was recently named Colobops noviportensis and reinterpreted as sister to all remaining Rhynchosauria, one of the earliest and globally distributed groups of herbivorous reptiles. It was also interpreted as having an exceptionally reinforced snout and powerful bite based on an especially large supratemporal fenestra. Here, after a re-analysis of the original scan data, we show that the skull was strongly dorsoventrally compressed post-mortem, with most bones out of life position. The cranial anatomy is consistent with that of other rhynchocephalian lepidosauromorphs, not rhynchosaurs. The 'reinforced snout' region and the 'exceptionally enlarged temporal region' are preservational artefacts and not exceptional among clevosaurid rhynchocephalians. Colobops is thus not a key taxon for understanding diapsid feeding apparatus evolution.
publishDate 2020
dc.date.none.fl_str_mv 2020-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/132840
Scheyer, Torsten M.; Spiekman, Stephan N. F.; Sues, Hans Dieter; Ezcurra, Martin Daniel; Butler, Richard J.; et al.; Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite; The Royal Society; Royal Society Open Science; 7; 3; 3-2020; 1-14
2054-5703
2054-5703
CONICET Digital
CONICET
url http://hdl.handle.net/11336/132840
identifier_str_mv Scheyer, Torsten M.; Spiekman, Stephan N. F.; Sues, Hans Dieter; Ezcurra, Martin Daniel; Butler, Richard J.; et al.; Colobops: A juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite; The Royal Society; Royal Society Open Science; 7; 3; 3-2020; 1-14
2054-5703
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rsos.192179
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.192179
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Royal Society
publisher.none.fl_str_mv The Royal Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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