A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles

Extant sea turtles develop and lay pliable (flexible) eggs; however, it is unknown whether they inherited this reproductive strategy from their closer fossil relatives or if it represents an evolutionary novelty. Here, we describe the first undisputable gravid marine fossil turtle ever found, from t...

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Autores:
Tipo de recurso:
Fecha de publicación:
2019
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/22746
Acceso en línea:
https://doi.org/10.1111/pala.12413
https://repository.urosario.edu.co/handle/10336/22746
Palabra clave:
Adaptation
Cretaceous
Egg development
Fossil
Reproductive strategy
Turtle
Colombia
Cheloniidae
Protostegidae
Testudines
Fossil eggs
Gravid turtle
Protostegidae
Testudines
Villa de leyva
Rights
License
Abierto (Texto Completo)
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oai_identifier_str oai:repository.urosario.edu.co:10336/22746
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
spelling 8823500660033fed43a-e94f-4c3a-b943-978214456b27-106d0ee3b-aca5-48ee-823b-e03faa8490b8-13d4e8d1f-7603-4195-ac7c-390eeb1cc952-12020-05-25T23:57:48Z2020-05-25T23:57:48Z2019Extant sea turtles develop and lay pliable (flexible) eggs; however, it is unknown whether they inherited this reproductive strategy from their closer fossil relatives or if it represents an evolutionary novelty. Here, we describe the first undisputable gravid marine fossil turtle ever found, from the early Cretaceous of Colombia, belonging to Desmatochelys padillai Cadena and Parham, which constitutes a representative of the Protostegidae. Using thin sectioning of one of the eggs, as well as scanning electron microscopy coupled with elemental characterization, cathodoluminescence, and computer tomography, we established that Desmatochelys padillai produced rigid eggs similar to those associated with some extant and fossil freshwater and terrestrial turtles. At least 48 spherical eggs were preserved inside this gravid turtle. We suggest that the development of rigid eggs in the extinct marine turtle Desmatochelys padillai resulted as an adaptation for egg-embryo requirements dictated by the physical attributes of the nesting site. © The Palaeontological Associationapplication/pdfhttps://doi.org/10.1111/pala.124131475498300310239https://repository.urosario.edu.co/handle/10336/22746engBlackwell Publishing Ltd545No. 4533PalaeontologyVol. 62Palaeontology, ISSN:14754983, 00310239, Vol.62, No.4 (2019); pp. 533-545https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058822092&doi=10.1111%2fpala.12413&partnerID=40&md5=5e1f188bba2ad311d2fbb9b249031264Abierto (Texto Completo)http://purl.org/coar/access_right/c_abf2instname:Universidad del Rosarioreponame:Repositorio Institucional EdocURAdaptationCretaceousEgg developmentFossilReproductive strategyTurtleColombiaCheloniidaeProtostegidaeTestudinesFossil eggsGravid turtleProtostegidaeTestudinesVilla de leyvaA gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtlesarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Cadena, Edwin AlbertoParra-Ruge M.L.Parra-Ruge J.D.D.Padilla-Bernal S.10336/22746oai:repository.urosario.edu.co:10336/227462022-05-02 07:37:14.352938https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co
dc.title.spa.fl_str_mv A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
title A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
spellingShingle A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
Adaptation
Cretaceous
Egg development
Fossil
Reproductive strategy
Turtle
Colombia
Cheloniidae
Protostegidae
Testudines
Fossil eggs
Gravid turtle
Protostegidae
Testudines
Villa de leyva
title_short A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
title_full A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
title_fullStr A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
title_full_unstemmed A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
title_sort A gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles
dc.subject.keyword.spa.fl_str_mv Adaptation
Cretaceous
Egg development
Fossil
Reproductive strategy
Turtle
Colombia
Cheloniidae
Protostegidae
Testudines
Fossil eggs
Gravid turtle
Protostegidae
Testudines
Villa de leyva
topic Adaptation
Cretaceous
Egg development
Fossil
Reproductive strategy
Turtle
Colombia
Cheloniidae
Protostegidae
Testudines
Fossil eggs
Gravid turtle
Protostegidae
Testudines
Villa de leyva
description Extant sea turtles develop and lay pliable (flexible) eggs; however, it is unknown whether they inherited this reproductive strategy from their closer fossil relatives or if it represents an evolutionary novelty. Here, we describe the first undisputable gravid marine fossil turtle ever found, from the early Cretaceous of Colombia, belonging to Desmatochelys padillai Cadena and Parham, which constitutes a representative of the Protostegidae. Using thin sectioning of one of the eggs, as well as scanning electron microscopy coupled with elemental characterization, cathodoluminescence, and computer tomography, we established that Desmatochelys padillai produced rigid eggs similar to those associated with some extant and fossil freshwater and terrestrial turtles. At least 48 spherical eggs were preserved inside this gravid turtle. We suggest that the development of rigid eggs in the extinct marine turtle Desmatochelys padillai resulted as an adaptation for egg-embryo requirements dictated by the physical attributes of the nesting site. © The Palaeontological Association
publishDate 2019
dc.date.created.spa.fl_str_mv 2019
dc.date.accessioned.none.fl_str_mv 2020-05-25T23:57:48Z
dc.date.available.none.fl_str_mv 2020-05-25T23:57:48Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1111/pala.12413
dc.identifier.issn.none.fl_str_mv 14754983
00310239
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/22746
url https://doi.org/10.1111/pala.12413
https://repository.urosario.edu.co/handle/10336/22746
identifier_str_mv 14754983
00310239
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationEndPage.none.fl_str_mv 545
dc.relation.citationIssue.none.fl_str_mv No. 4
dc.relation.citationStartPage.none.fl_str_mv 533
dc.relation.citationTitle.none.fl_str_mv Palaeontology
dc.relation.citationVolume.none.fl_str_mv Vol. 62
dc.relation.ispartof.spa.fl_str_mv Palaeontology, ISSN:14754983, 00310239, Vol.62, No.4 (2019); pp. 533-545
dc.relation.uri.spa.fl_str_mv https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058822092&doi=10.1111%2fpala.12413&partnerID=40&md5=5e1f188bba2ad311d2fbb9b249031264
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.acceso.spa.fl_str_mv Abierto (Texto Completo)
rights_invalid_str_mv Abierto (Texto Completo)
http://purl.org/coar/access_right/c_abf2
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Blackwell Publishing Ltd
institution Universidad del Rosario
dc.source.instname.spa.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.spa.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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