A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite

Abstract Taphonomic processes play an important role in the preservation of small morphological features such as granulation or pits. However, the assessment of these features may face the issue of the small size of the specimens and, sometimes, the destructiveness of these analyses, which makes imp...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jorge Esteve, Yuan-Long Zhao, Miguel Ángel Maté-González, Miguel Gómez-Heras, Jin Peng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dc46df1c5dff48918ebf2b4b3edc11f3
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:dc46df1c5dff48918ebf2b4b3edc11f3
record_format	dspace
spelling	oai:doaj.org-article:dc46df1c5dff48918ebf2b4b3edc11f32021-12-02T15:08:25ZA new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite10.1038/s41598-018-21088-42045-2322https://doaj.org/article/dc46df1c5dff48918ebf2b4b3edc11f32018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-21088-4https://doaj.org/toc/2045-2322Abstract Taphonomic processes play an important role in the preservation of small morphological features such as granulation or pits. However, the assessment of these features may face the issue of the small size of the specimens and, sometimes, the destructiveness of these analyses, which makes impossible carrying them out in singular specimen, such as holotypes or lectotypes. This paper takes a new approach to analysing small-morphological features, by using an optical surface roughness (OSR) meter to create a high-resolution three-dimensional digital-elevation model (DEM). This non-destructive technique allows analysing quantitatively the DEM using geometric morphometric methods (GMM). We created a number of DEMs from three populations putatively belonging to the same species of trilobite (Oryctocephalus indicus) that present the same cranidial outline, but differ in the presence or absence of the second and third transglabellar furrows. Profile analysis of the DEMs demonstrate that all three populations show similar preservation variation in the glabellar furrows and lobes. The GMM shows that all populations exhibit the same range of variation. Differences in preservation are a consequence of different degrees of cementation and rates of dissolution. Fast cementation enhances the preservation of glabellar furrows and lobes, while fast dissolution hampers preservation of the same structures.Jorge EsteveYuan-Long ZhaoMiguel Ángel Maté-GonzálezMiguel Gómez-HerasJin PengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jorge Esteve Yuan-Long Zhao Miguel Ángel Maté-González Miguel Gómez-Heras Jin Peng A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite
description	Abstract Taphonomic processes play an important role in the preservation of small morphological features such as granulation or pits. However, the assessment of these features may face the issue of the small size of the specimens and, sometimes, the destructiveness of these analyses, which makes impossible carrying them out in singular specimen, such as holotypes or lectotypes. This paper takes a new approach to analysing small-morphological features, by using an optical surface roughness (OSR) meter to create a high-resolution three-dimensional digital-elevation model (DEM). This non-destructive technique allows analysing quantitatively the DEM using geometric morphometric methods (GMM). We created a number of DEMs from three populations putatively belonging to the same species of trilobite (Oryctocephalus indicus) that present the same cranidial outline, but differ in the presence or absence of the second and third transglabellar furrows. Profile analysis of the DEMs demonstrate that all three populations show similar preservation variation in the glabellar furrows and lobes. The GMM shows that all populations exhibit the same range of variation. Differences in preservation are a consequence of different degrees of cementation and rates of dissolution. Fast cementation enhances the preservation of glabellar furrows and lobes, while fast dissolution hampers preservation of the same structures.
format	article
author	Jorge Esteve Yuan-Long Zhao Miguel Ángel Maté-González Miguel Gómez-Heras Jin Peng
author_facet	Jorge Esteve Yuan-Long Zhao Miguel Ángel Maté-González Miguel Gómez-Heras Jin Peng
author_sort	Jorge Esteve
title	A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite
title_short	A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite
title_full	A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite
title_fullStr	A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite
title_full_unstemmed	A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite
title_sort	new high-resolution 3-d quantitative method for analysing small morphological features: an example using a cambrian trilobite
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/dc46df1c5dff48918ebf2b4b3edc11f3
work_keys_str_mv	AT jorgeesteve anewhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT yuanlongzhao anewhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT miguelangelmategonzalez anewhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT miguelgomezheras anewhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT jinpeng anewhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT jorgeesteve newhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT yuanlongzhao newhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT miguelangelmategonzalez newhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT miguelgomezheras newhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite AT jinpeng newhighresolution3dquantitativemethodforanalysingsmallmorphologicalfeaturesanexampleusingacambriantrilobite
_version_	1718388153991036928

A new high-resolution 3-D quantitative method for analysing small morphological features: an example using a Cambrian trilobite

Ejemplares similares