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Bony labyrinth (8) , Inner ear (7) , South America (5) , Oligocene (4) , Switzerland (4)

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Maëva Orliac (10) , Lionel Hautier (9) , Rodolphe Tabuce (7) , Pierre-Olivier Antoine (7) , Laurent Marivaux (6)

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Specimen infos
Collection
Collection : Natural History Museum of Los Angeles County (LACM), Los Angeles, USA

Inventory number : LACM 162446


Information
Sex : indet

Age group : Adult

Age (if applicable) : late Early Oligocene (~29.5 Ma)

Material Type : Isolated tooth

Origin : Río Guatemala, San Sebastián, Puerto Rico

Taxonomy
Class : Mammalia

Order : Rodentia

Family : Dinomyidae

Genus : Borikenomys

Species :✝praecursor


Description
LACM 162446, fragment of lower molar (most of the mesial part).

Related article
3D models related to the publication: Early Oligocene chinchilloid caviomorphs from Puerto Rico and the initial rodent colonization of the West Indies
Laurent Marivaux, Jorge Vélez-Juarbe and Pierre-Olivier Antoine
Keywords: Caribbean islands; Caviomorpha; Paleobiogeography; Paleogene; Rodentia

doi: 10.18563/journal.m3.127

Cite this article: Marivaux L., Vélez-Juarbe J., Antoine P.-O., 2020. 3D models related to the publication: Early Oligocene chinchilloid caviomorphs from Puerto Rico and the initial rodent colonization of the West Indies. MorphoMuseuM 6:e127. doi: 10.18563/journal.m3.127

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  Abstract

    This contribution contains the 3D models of the fossil teeth of two chinchilloid caviomorph rodents (Borikenomys praecursor and Chinchilloidea gen. et sp. indet.) discovered from lower Oligocene deposits of Puerto Rico, San Sebastian Formation (locality LACM Loc. 8060). These fossils were described and figured in the following publication: Marivaux et al. (2020), Early Oligocene chinchilloid caviomorphs from Puerto Rico and the initial rodent colonization of the West Indies. Proceedings of the Royal Society B. http://dx.doi.org/10.1098/rspb.2019.2806 


  M3 article infos

in press
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3D data

M3#639_LACM 162446

Fragment of lower molar (most of the mesial part). This isolated broken tooth was scanned with a resolution of 6 µm using a μ-CT-scanning station EasyTom 150 / Rx Solutions (Montpellier RIO Imaging, ISE-M, Montpellier, France). AVIZO 7.1 (Visualization Sciences Group) software was used for visualization, segmentation, and 3D rendering. The specimen was prepared within a “labelfield” module of AVIZO, using the segmentation threshold selection tool.

Type: "3D_surfaces"

3D view: doi: 10.18563/m3.sf.639

Data citation: Marivaux L., Vélez-Juarbe J., Antoine P.-O., 2020. M3#639_LACM 162446. doi: 10.18563/m3.sf.639

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