Project 3326: Lorente, M., J. N. Gelfo, and G. M. Lopez. 2018. First skeleton of the notoungulate mammal Notostylops murinus and palaeobiology of Eocene Notostylopidae. Lethaia. online:1-16.
Specimen: † Notostylops murinus (:MLP 82-V-1-8)
View: axis veertebra

Abstract

Here, we describe the first skeletal remains of Notostylops recovered from middle
Eocene levels of the Sarmiento Formation, Patagonia, Argentina. The remains include
two teeth of Notostylops murinus, the axis, vertebral bodies, a rib, a left humerus, both
radii, two metapodials, two phalanges, the pelvis, a right femur, a right calcaneus and
several broken bones. Radial bones are not fused to ulnas, and are shorter than the
humerus, very generalized, with an oval head, a marked neck and a radial tubercle.
The humerus and the femur show pronounced insertion structures. Our analysis suggests
that the appendicular skeleton of Notostylops is too generalized and shares several
features with that of terrestrial rodents as Sciuridae. Unlike the appendicular skeletons
of cursorial or saltatorial mammals, which restrict mobility, the skeleton of Notostylops
indicates the ability to make a variety of different movements, as would be expected
for terrestrial, fossorial or arboreal mammals. This skeleton gives new information
about the locomotor behaviour of notoungulates, particularly in their basal forms.
The results will also allow the identification of isolated notoungulate bones and raise
questions about the previous taxonomic assignment of postcrania to Pleurostylodon.


Read the article »

Article DOI: https://doi.org/10.1111/let.12310

Project DOI: 10.7934/P3326, http://dx.doi.org/10.7934/P3326
This project contains
  • 7 Media
  • 1 Taxon
  • 2 Specimens
Total size of project's media files: 764 MB

Download Project SDD File
Currently Viewing:
MorphoBank Project 3326


    Members

    member name taxa specimens media media
    notes
    Javier Gelfo
    Project Administrator
    Last logged in 12/19/18
    1270


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views584
    Project overview101
    Views for media list112
    Media views232Media search (116 views); M639182 (19 views); M639188 (18 views); M645616 (16 views); M639186 (17 views); M639183 (15 views); M639185 (15 views); M639187 (16 views);
    Taxon list46
    Bibliography24
    Specimen list68
    Documents list1




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project16
    Project downloads14
    Media downloads2M639186 (1 download); M639183 (1 download);