An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids

Taphonomic studies aim to identify the modifying agents that intervene in bone assemblages found at archaeopaleontological sites. Carnivores may modify, accumulate, or scavenge skeletal parts inflicting tooth marks, including scores, on the cortical surface. Several works have studied tooth score mo...

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Main Authors: Mari Carmen Arriaza, Julia Aramendi, Lloyd A. Courtenay, Miguel Ángel Maté-González, Darío Herranz-Rodrigo, Diego González-Aguilera, José Yravedra
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/6/3864
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author Mari Carmen Arriaza
Julia Aramendi
Lloyd A. Courtenay
Miguel Ángel Maté-González
Darío Herranz-Rodrigo
Diego González-Aguilera
José Yravedra
author_facet Mari Carmen Arriaza
Julia Aramendi
Lloyd A. Courtenay
Miguel Ángel Maté-González
Darío Herranz-Rodrigo
Diego González-Aguilera
José Yravedra
author_sort Mari Carmen Arriaza
collection DOAJ
description Taphonomic studies aim to identify the modifying agents that intervene in bone assemblages found at archaeopaleontological sites. Carnivores may modify, accumulate, or scavenge skeletal parts inflicting tooth marks, including scores, on the cortical surface. Several works have studied tooth score morphology to discern which carnivore group modified the bone assemblages, achieving different results. In the present study, different methods based on the use of landmarks and semilandmarks have been tested to describe and analyze the score profile cross-sections of spotted and brown hyenas, leopards, and lions. According to our results, the already published seven-landmark method is useful in order to differentiate between carnivore species from different families (e.g., felids and hyenids). Meanwhile, felid species (e.g., leopards and lions) cannot be consistently distinguished using any of the methods tested here. In contrast, hyenid species can be morphologically differentiated. On the other hand, the use of semilandmarks does not generally improve morphological characterization and distinction, but low numbers of landmarks and the inclusion of the score’s deepest point might provide the best results when semi-automatic semilandmark models are preferred to avoid sampling biases.
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spelling doaj.art-d7de7666537c472e8685cfb5fc627eb82023-11-17T09:28:01ZengMDPI AGApplied Sciences2076-34172023-03-01136386410.3390/app13063864An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and HyenidsMari Carmen Arriaza0Julia Aramendi1Lloyd A. Courtenay2Miguel Ángel Maté-González3Darío Herranz-Rodrigo4Diego González-Aguilera5José Yravedra6Department of Prehistory, Ancient History and Archaeology, Universidad Complutense de Madrid, Av. Séneca, 2, 28040 Madrid, SpainDepartment of Geology, Facultad de Ciencia y Tecnología, Universidad del País Vasco-Euskal Herriko Unibertsitatea (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainDepartment of Cartographic and Terrain Engineering, Higher Polytechnic School of Ávila, Universidad de Salamanca, Hornos Caleros 50, 05003 Ávila, SpainDepartment of Cartographic and Terrain Engineering, Higher Polytechnic School of Ávila, Universidad de Salamanca, Hornos Caleros 50, 05003 Ávila, SpainC.A.I. Archaeometry and Archaeological Analysis, Universidad Complutense de Madrid, Calle Profesor Aranguren 2, 28040 Madrid, SpainDepartment of Cartographic and Terrain Engineering, Higher Polytechnic School of Ávila, Universidad de Salamanca, Hornos Caleros 50, 05003 Ávila, SpainDepartment of Prehistory, Ancient History and Archaeology, Universidad Complutense de Madrid, Av. Séneca, 2, 28040 Madrid, SpainTaphonomic studies aim to identify the modifying agents that intervene in bone assemblages found at archaeopaleontological sites. Carnivores may modify, accumulate, or scavenge skeletal parts inflicting tooth marks, including scores, on the cortical surface. Several works have studied tooth score morphology to discern which carnivore group modified the bone assemblages, achieving different results. In the present study, different methods based on the use of landmarks and semilandmarks have been tested to describe and analyze the score profile cross-sections of spotted and brown hyenas, leopards, and lions. According to our results, the already published seven-landmark method is useful in order to differentiate between carnivore species from different families (e.g., felids and hyenids). Meanwhile, felid species (e.g., leopards and lions) cannot be consistently distinguished using any of the methods tested here. In contrast, hyenid species can be morphologically differentiated. On the other hand, the use of semilandmarks does not generally improve morphological characterization and distinction, but low numbers of landmarks and the inclusion of the score’s deepest point might provide the best results when semi-automatic semilandmark models are preferred to avoid sampling biases.https://www.mdpi.com/2076-3417/13/6/3864geometric morphometricstooth scorestaphonomysemilandmarkscarnivores
spellingShingle Mari Carmen Arriaza
Julia Aramendi
Lloyd A. Courtenay
Miguel Ángel Maté-González
Darío Herranz-Rodrigo
Diego González-Aguilera
José Yravedra
An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids
Applied Sciences
geometric morphometrics
tooth scores
taphonomy
semilandmarks
carnivores
title An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids
title_full An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids
title_fullStr An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids
title_full_unstemmed An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids
title_short An Evaluation of Landmark-Based Methods to Explore Tooth Score Morphology: A Case Study on Felids and Hyenids
title_sort evaluation of landmark based methods to explore tooth score morphology a case study on felids and hyenids
topic geometric morphometrics
tooth scores
taphonomy
semilandmarks
carnivores
url https://www.mdpi.com/2076-3417/13/6/3864
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