New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae

Abstract Spinosaurids are among the most distinctive and yet poorly-known of large-bodied theropod dinosaurs, a situation exacerbated by their mostly fragmentary fossil record and competing views regarding their palaeobiology. Here, we report two new Early Cretaceous spinosaurid specimens from the W...

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Autores principales:	Chris T. Barker, David W. E. Hone, Darren Naish, Andrea Cau, Jeremy A. F. Lockwood, Brian Foster, Claire E. Clarkin, Philipp Schneider, Neil J. Gostling
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b162aca67e60446cb3e80e1fef2b1296
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spelling	oai:doaj.org-article:b162aca67e60446cb3e80e1fef2b12962021-12-02T19:17:05ZNew spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae10.1038/s41598-021-97870-82045-2322https://doaj.org/article/b162aca67e60446cb3e80e1fef2b12962021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97870-8https://doaj.org/toc/2045-2322Abstract Spinosaurids are among the most distinctive and yet poorly-known of large-bodied theropod dinosaurs, a situation exacerbated by their mostly fragmentary fossil record and competing views regarding their palaeobiology. Here, we report two new Early Cretaceous spinosaurid specimens from the Wessex Formation (Barremian) of the Isle of Wight. Large-scale phylogenetic analyses using parsimony and Bayesian techniques recover the pair in a new clade within Baryonychinae that also includes the hypodigm of the African spinosaurid Suchomimus. Both specimens represent distinct and novel taxa, herein named Ceratosuchops inferodios gen. et sp. nov. and Riparovenator milnerae gen. et sp. nov. A palaeogeographic reconstruction suggests a European origin for Spinosauridae, with at least two dispersal events into Africa. These new finds provide welcome information on poorly sampled areas of spinosaurid anatomy, suggest that sympatry was present and potentially common in baryonychines and spinosaurids as a whole, and contribute to updated palaeobiogeographic reconstructions for the clade.Chris T. BarkerDavid W. E. HoneDarren NaishAndrea CauJeremy A. F. LockwoodBrian FosterClaire E. ClarkinPhilipp SchneiderNeil J. GostlingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chris T. Barker David W. E. Hone Darren Naish Andrea Cau Jeremy A. F. Lockwood Brian Foster Claire E. Clarkin Philipp Schneider Neil J. Gostling New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae
description	Abstract Spinosaurids are among the most distinctive and yet poorly-known of large-bodied theropod dinosaurs, a situation exacerbated by their mostly fragmentary fossil record and competing views regarding their palaeobiology. Here, we report two new Early Cretaceous spinosaurid specimens from the Wessex Formation (Barremian) of the Isle of Wight. Large-scale phylogenetic analyses using parsimony and Bayesian techniques recover the pair in a new clade within Baryonychinae that also includes the hypodigm of the African spinosaurid Suchomimus. Both specimens represent distinct and novel taxa, herein named Ceratosuchops inferodios gen. et sp. nov. and Riparovenator milnerae gen. et sp. nov. A palaeogeographic reconstruction suggests a European origin for Spinosauridae, with at least two dispersal events into Africa. These new finds provide welcome information on poorly sampled areas of spinosaurid anatomy, suggest that sympatry was present and potentially common in baryonychines and spinosaurids as a whole, and contribute to updated palaeobiogeographic reconstructions for the clade.
format	article
author	Chris T. Barker David W. E. Hone Darren Naish Andrea Cau Jeremy A. F. Lockwood Brian Foster Claire E. Clarkin Philipp Schneider Neil J. Gostling
author_facet	Chris T. Barker David W. E. Hone Darren Naish Andrea Cau Jeremy A. F. Lockwood Brian Foster Claire E. Clarkin Philipp Schneider Neil J. Gostling
author_sort	Chris T. Barker
title	New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae
title_short	New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae
title_full	New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae
title_fullStr	New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae
title_full_unstemmed	New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae
title_sort	new spinosaurids from the wessex formation (early cretaceous, uk) and the european origins of spinosauridae
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b162aca67e60446cb3e80e1fef2b1296
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New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae

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