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Volume 7, Issue 2, April 2019, Page: 47-53
Use of CT Scanning and Radiography as Legal Expert Evidence in Paleontology (Trilobites of Morocco)
Joan Corbacho, Departament of Trilobites and Certifications, Geological Museum of the Seminary, Barcelona, Spain; Departament of Paleontology, Association of Legal Experts of Catalonia, Sabadell, Spain
Scott Morrison, Department of Geological Sciences, University of Oregon, Eugene, USA
Sergio Llácer, Departament of Virtual Paleontology, Catalan Institute of Paleontology, Sabadell, Spain
Keith Hammond, Departament of Trilobites and Certifications, Geological Museum of the Seminary, Barcelona, Spain
Received: Jun. 16, 2019;       Accepted: Jul. 11, 2019;       Published: Jul. 23, 2019
DOI: 10.11648/j.ajls.20190702.12      View  42      Downloads  52
Abstract
This study presents CT Scanning and radiography techniques applied to invertebrate paleontology, specifically to the detection of trilobites forgeries in Morocco. A well-known technique uses ultraviolet rays to detect falsified resin elements in trilobites. This technique is very effective for the trilobites of the Ordovician of Russia, although it is also used in specimens from other regions as we can see in figure 1: a topotype of the Upper Ordovician of Morocco, Uralichas hispanicus tardus Vela & Corbacho, 2009. This technique is not entirely reliable since it only detects the resin but not the density difference of different broken pieces that can be present in an authentic trilobite and its matrix, so these parts could belong to different specimens. This problem is solved with the utilization of a CT Scanning and in some cases with simple radiography. This paper presents mainly holotypes, paratypes and other specimens included in scientific articles, belonging to the Lower Ordovician, Upper Ordovician and Middle Devonian. The authenticity of the figured specimens are further substantiated and demonstrate that they retain the necessary characters to make an accurate description of the designated new species.
Keywords
CT Scanning, Radiography, X-ray, Trilobites, Fakes, Legal Expert in Paleontology
To cite this article
Joan Corbacho, Scott Morrison, Sergio Llácer, Keith Hammond, Use of CT Scanning and Radiography as Legal Expert Evidence in Paleontology (Trilobites of Morocco), American Journal of Life Sciences. Vol. 7, No. 2, 2019, pp. 47-53. doi: 10.11648/j.ajls.20190702.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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