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

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M3#638_LACM 162447

Right lower m3. This isolated 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.

Data citation: Marivaux L., Vélez-Juarbe J., Antoine P.-O., 2020. M3#638_LACM 162447. doi: 10.18563/m3.sf.638

Model solid/transparent

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

Inventory number : LACM 162447


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 162447, right lower m3

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

  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

Published in Volume 06, issue 04 (2020)
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