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A dinosaurian facial deformity and the first occurrence of ameloblastoma in the fossil record

A dinosaurian facial deformity and the first occurrence of ameloblastoma in the fossil record
A dinosaurian facial deformity and the first occurrence of ameloblastoma in the fossil record
Despite documentation of various types of neoplastic pathologies encountered in the vertebrate fossil record, no ameloblastic tumours have been recognised so far. Ameloblastoma is a benign neoplasic tumour with a strong preponderance for the mandible. Here, we report for the first time the presence of an ameloblastoma neoplasm in the lower jaw of a specimen referred to the derived non-hadrosaurid hadrosauroid dinosaur Telmatosaurus transsylvanicus from the uppermost Cretaceous of the Haeg Basin in Romania. The location, external appearance and internal structure of the pathological outgrowth provide clear evidence for the diagnosis of ameloblastoma in Telmatosaurus. This report extends the range of pathologies encountered in hadrosauroid dinosaurs. In addition, recognition of an ameloblastoma neoplasm in a taxon lying close to the origin of ‘duck-billed’ hadrosaurid dinosaurs confirms the predisposition of this clade towards neoplasia pathologies already in its basal members.
1-7
Dumbrava, Mihai D.
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Rothschild, Bruce M.
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Weishampel, David B.
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Csiki-Sava, Zoltan
54658049-b7b2-43fb-ba6d-97fc5068957c
Andrei, Razvan A.
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Acheson, Katharine A.
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Codrea, Vlad A.
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Dumbrava, Mihai D.
177d2ad4-ba7c-4ba9-9461-1e8db24192b5
Rothschild, Bruce M.
3d5c7220-0c1b-408d-90fd-265d6bb54f74
Weishampel, David B.
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Csiki-Sava, Zoltan
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Andrei, Razvan A.
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Acheson, Katharine A.
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Codrea, Vlad A.
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Dumbrava, Mihai D., Rothschild, Bruce M., Weishampel, David B., Csiki-Sava, Zoltan, Andrei, Razvan A., Acheson, Katharine A. and Codrea, Vlad A. (2016) A dinosaurian facial deformity and the first occurrence of ameloblastoma in the fossil record. Scientific Reports, 6, 1-7, [29271]. (doi:10.1038/srep29271).

Record type: Article

Abstract

Despite documentation of various types of neoplastic pathologies encountered in the vertebrate fossil record, no ameloblastic tumours have been recognised so far. Ameloblastoma is a benign neoplasic tumour with a strong preponderance for the mandible. Here, we report for the first time the presence of an ameloblastoma neoplasm in the lower jaw of a specimen referred to the derived non-hadrosaurid hadrosauroid dinosaur Telmatosaurus transsylvanicus from the uppermost Cretaceous of the Haeg Basin in Romania. The location, external appearance and internal structure of the pathological outgrowth provide clear evidence for the diagnosis of ameloblastoma in Telmatosaurus. This report extends the range of pathologies encountered in hadrosauroid dinosaurs. In addition, recognition of an ameloblastoma neoplasm in a taxon lying close to the origin of ‘duck-billed’ hadrosaurid dinosaurs confirms the predisposition of this clade towards neoplasia pathologies already in its basal members.

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Accepted/In Press date: 15 June 2016
e-pub ahead of print date: 5 July 2016
Organisations: Ocean and Earth Science

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Local EPrints ID: 397751
URI: http://eprints.soton.ac.uk/id/eprint/397751
PURE UUID: 5e57a17d-7c7e-4427-b08f-fdc92911c9f6

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Date deposited: 05 Jul 2016 16:25
Last modified: 26 Apr 2022 22:17

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Contributors

Author: Mihai D. Dumbrava
Author: Bruce M. Rothschild
Author: David B. Weishampel
Author: Zoltan Csiki-Sava
Author: Razvan A. Andrei
Author: Katharine A. Acheson
Author: Vlad A. Codrea

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