3D models of Peradectes crocheti from Palette (early Eocene, Provence)
3D models of the masticatory muscles of Anomaluromorpha
3D models of the holotype of Dasypus guianensis.
3D GM dataset of bird skeletal variation
Skeletal embryonic development in the catshark
Bony connexions of the petrosal bone of extant hippos
bony labyrinth (11) , inner ear (10) , Eocene (8) , South America (8) , skull (7) , brain (6) , phylogeny (6)
Lionel Hautier (20) , Maëva Judith Orliac (19) , Laurent Marivaux (12) , Bastien Mennecart (12) , Pierre-Olivier Antoine (11) , Leonardo Kerber (10) , Renaud Lebrun (9)
A 3D geometric morphometric dataset quantifying skeletal variation in birdsAlexander Bjarnason and Roger BensonPublished online: 09/02/2021Keywords: birds; geometric morphometrics; macroevolution; Morphology; skeleton https://doi.org/10.18563/journal.m3.125 Abstract Macroevolution is integral to understanding the patterns of the diversification of life. As the life sciences increasingly use big data approaches, large multivariate datasets are required to test fundamental macroevolutionary hypotheses. In vertebrate evolution, large datasets have been created to quantify morphological variation, largely focusing on particular areas of the skeleton. We provide a landmarking protocol to quantify morphological variation in skeletal elements across the head, trunk, hindlimb and forelimb using 3-dimensional landmarks and semilandmarks, and present a large pan-skeletal database of bird morphology for 149 taxa across avian phylogeny using CT scan data. This large collection of 3D models and geometric morphometric data is open access and can be used in the future for new research, teaching and outreach. The 3D models and CT scans of the 149 specimens related to this project can be downloaded at MorphoSource (https://www.morphosource.org/projects/00000C420) Menura novaehollandiae FMNH 336751 View specimen
M3 article infos Published in Volume 07, issue 01 (2021) |
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Skeletogenesis during the late embryonic development of the catshark Scyliorhinus canicula (Chondrichthyes; Neoselachii)Sébastien Enault, Sylvain Adnet and Mélanie Debiais-ThibaudPublished online: 25/04/2016Keywords: Chondrichthyes; development; mineralization; Scyliorhinus canicula; skeleton https://doi.org/10.18563/m3.1.4.e2 Abstract Current knowledge on the skeletogenesis of Chondrichthyes is scarce compared with their extant sister group, the bony fishes. Most of the previously described developmental tables in Chondrichthyes have focused on embryonic external morphology only. Due to its small body size and relative simplicity to raise eggs in laboratory conditions, the small-spotted catshark Scyliorhinus canicula has emerged as a reference species to describe developmental mechanisms in the Chondrichthyes lineage. Here we investigate the dynamic of mineralization in a set of six embryonic specimens using X-ray microtomography and describe the developing units of both the dermal skeleton (teeth and dermal scales) and endoskeleton (vertebral axis). This preliminary data on skeletogenesis in the catshark sets the first bases to a more complete investigation of the skeletal developmental in Chondrichthyes. It should provide comparison points with data known in osteichthyans and could thus be used in the broader context of gnathostome skeletal evolution. Scyliorhinus canicula SC6_2_2015_03_20 View specimen
Scyliorhinus canicula SC6_7_2015_03_20 View specimen
Scyliorhinus canicula SC7_1_2015_04_03 View specimen
Scyliorhinus canicula SC7_5_2015_03_13 View specimen
Scyliorhinus canicula SC8_2015_03_20 View specimen
Scyliorhinus canicula SC10_2015_02_27 View specimen
M3 article infos Published in Volume 01, Issue 04 (2016) |
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Osteological connexions of the petrosal bone of the extant Hippopotamidae Hippopotamus amphibius and Choeropsis liberiensisMaëva J. Orliac , Franck Guy and Renaud LebrunPublished online: 24/10/2014Keywords: Artiodactyla; bulla; ear region; pygmy hippo; sinus https://doi.org/10.18563/m3.1.1.e1 Abstract This project presents the osteological connexions of the petrosal bone of the extant Hippopotamidae Hippopotamus amphibius and Choeropsis liberiensis by a virtual osteological dissection of the ear region. The petrosal, the bulla, the sinuses and the major morphological features surrounding the petrosal bone are labelled, both in situ and in an exploded model presenting disassembly views. The directional underwater hearing mode of Hippopotamidae is discussed based on the new observations. Choeropsis liberiensis UPPal-M09-5-005a View specimen
Hippopotamus amphibius UM N179 View specimen
M3 article infos Published in Vol. 01, Issue 01 (2015) |
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A delphinid petrosal bone from a gravesite on Ahu Tahai, Easter Island: taxonomic attribution, external and internal morphology.Maëva J. Orliac , Catherine Orliac, Michel C. Orliac and Antoine HautinPublished online: 31/03/2020Keywords: bony labyrinth; petrosal; Rapanui; stapes; vestibulo cochlear nerve https://doi.org/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. indet. indet. AT1 View specimen
M3 article infos Published in Volume 06, issue 02 (2020) |
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MicroCT survey of larval skeletal mineralization in the Cuban gar Atractosteus tristoechus (Actinopterygii; Lepisosteiformes)Raphaël Scherrer , Andrés Hurtado, Erik Garcia Machado and Mélanie Debiais-ThibaudPublished online: 17/05/2017Keywords: Actinopterygii; development; Lepisosteiformes; mineralization; skeleton https://doi.org/10.18563/m3.3.3.e3 Abstract Using X-ray microtomography, we describe the ossification events during the larval development of a non-teleost actinopterygian species: the Cuban gar Atractosteus tristoechus from the order Lepisosteiformes. We provide a detailed developmental series for each anatomical structure, covering a large sequence of mineralization events going from an early stage (13 days post-hatching, 21mm total length) to an almost fully ossified larval stage (118dph or 87mm in standard length). With this work, we expect to bring new developmental data to be used in further comparative studies with other lineages of bony vertebrates. We also hope that the on-line publication of these twelve successive 3D reconstructions, fully labelled and flagged, will be an educational tool for all students in comparative anatomy. Atractosteus tristoechus At1-13dph View specimen
Atractosteus tristoechus At2-16dph View specimen
Atractosteus tristoechus At3-19dph View specimen
Atractosteus tristoechus At4-22dph View specimen
Atractosteus tristoechus At5-26dph View specimen
Atractosteus tristoechus At6-31dph View specimen
Atractosteus tristoechus At7-37dph View specimen
Atractosteus tristoechus At8-52dph View specimen
Atractosteus tristoechus At9-74dph View specimen
Atractosteus tristoechus At10-89dph View specimen
Atractosteus tristoechus At11-104dph View specimen
Atractosteus tristoechus At12-118dph View specimen
M3 article infos Published in Volume 03, Issue 03 (2017) |
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