Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium

This study analyses the diverse types of bioerosion marks on the shells of two sea turtle specimens from the Lutetian (middle Eocene) of Belgium. The objective is to understand the physical stressors affecting these organisms in ancient marine environments and to identify the potential factors respo...

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Main Authors: Andrea Guerrero, Thierry Smith, Adán Pérez-García
Format: Article
Language:English
Published: Pensoft Publishers 2025-01-01
Series:Fossil Record
Online Access:https://fr.pensoft.net/article/141743/download/pdf/
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author Andrea Guerrero
Thierry Smith
Adán Pérez-García
author_facet Andrea Guerrero
Thierry Smith
Adán Pérez-García
author_sort Andrea Guerrero
collection DOAJ
description This study analyses the diverse types of bioerosion marks on the shells of two sea turtle specimens from the Lutetian (middle Eocene) of Belgium. The objective is to understand the physical stressors affecting these organisms in ancient marine environments and to identify the potential factors responsible for these changes. The first specimen, the holotype of Eochelone brabantica, presents multiple erosive anomalies on its costal plates. The second individual, corresponding to Puppigerus camperi, exhibits different types of shell deviations, also of an erosive character. The combination of macroscopic and imaging techniques (i.e., CT scanning and 3D surface scanning) allow us the precise observation and identification of the different alterations. Comparative analyses suggest several external factors as potential causes of the anomalies of the two specimens (i.e., invertebrate feeding traces and trauma). This detailed examination provides specific insights into the types and causes of shell alterations in these Eocene turtles, offering a clearer understanding of their interactions in the marine ecosystem in which they lived.
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institution Kabale University
issn 2193-0074
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publishDate 2025-01-01
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series Fossil Record
spelling doaj-art-01071476943c4ebdbbf443059b1309d32025-02-02T08:30:42ZengPensoft PublishersFossil Record2193-00742025-01-01281455610.3897/fr.28.e141743141743Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of BelgiumAndrea Guerrero0Thierry Smith1Adán Pérez-García2Universidad Nacional de Educación a DistanciaRoyal Belgian Institute of Natural SciencesUniversidad Nacional de Educación a DistanciaThis study analyses the diverse types of bioerosion marks on the shells of two sea turtle specimens from the Lutetian (middle Eocene) of Belgium. The objective is to understand the physical stressors affecting these organisms in ancient marine environments and to identify the potential factors responsible for these changes. The first specimen, the holotype of Eochelone brabantica, presents multiple erosive anomalies on its costal plates. The second individual, corresponding to Puppigerus camperi, exhibits different types of shell deviations, also of an erosive character. The combination of macroscopic and imaging techniques (i.e., CT scanning and 3D surface scanning) allow us the precise observation and identification of the different alterations. Comparative analyses suggest several external factors as potential causes of the anomalies of the two specimens (i.e., invertebrate feeding traces and trauma). This detailed examination provides specific insights into the types and causes of shell alterations in these Eocene turtles, offering a clearer understanding of their interactions in the marine ecosystem in which they lived.https://fr.pensoft.net/article/141743/download/pdf/
spellingShingle Andrea Guerrero
Thierry Smith
Adán Pérez-García
Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium
Fossil Record
title Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium
title_full Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium
title_fullStr Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium
title_full_unstemmed Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium
title_short Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium
title_sort bioerosional marks in the shells of two sea turtle taxa from the middle eocene of belgium
url https://fr.pensoft.net/article/141743/download/pdf/
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