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A delphinid petrosal from Easter Island

Most popular keywords

bony labyrinth (7) , inner ear (6) , South America (5) , human embryo (4) , magnetic resonance imaging (4)

Major contributors

Maëva Orliac (9) , Lionel Hautier (8) , Rodolphe Tabuce (7) , Renaud Lebrun (5) , Bastien Mennecart (5)

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M3#422_AT1

in situ bony labyrinth

Data citation: Orliac M., Orliac C., Orliac M. C., Hautin A., 2020. M3#422_AT1. doi: 10.18563/m3.sf.422

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Specimen infos
Collection
Collection : Sebastian Englert Museum, Hanga Roa, Rapanui

Inventory number : AT1


Information
Sex : indet

Age group : Adult

Age (if applicable) :

Material Type : petrosal, in situ stapes

Origin : Easter Island

Taxonomy
Class : Mammalia

Order : Cetartiodactyla

Family : Delphinidae

Genus : indet.

Species :indet.


Description
right petrosal bone with in situ stapes

Related article
A delphinid petrosal bone from a gravesite on Ahu Tahai, Easter Island: taxonomic attribution, external and internal morphology.
Maëva Orliac, Catherine Orliac, Michel C. Orliac and Antoine Hautin
Keywords: bony labyrinth; petrosal; Rapanui; Stapes; vestibulo cochlear nerve

doi: 10.18563/journal.m3.91

  Abstract

    In this contribution, we describe the external and internal morphology of a delphinid petrosal bone collected from Ahu Tahai, a burial site located on the Southwestern coast of Easter Island, at Hangaroa. We discuss the taxonomic attribution of this archaeological item and describe its internal structures based on µCT data, including the bony labyrinth and the nerve and vein patterns. Identification of the nerves exists lead us to relocate the identification of the foramen singulare in delphinid petrosals.

      


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