DocuBase  

 

TITLE: Description of Montanazhdarcho minor, an azhdarchid pterosaur from the Two Medicine Formation (Campanian) of Montana
AUTHOR: Michael R. McGowen, Kevin Padian, Michael A. de Sosa, and Robert J. Harmon
JOURNAL: PaleoBios
PUBLISHED: May 15, 2002
NOTES: 22(1)
ABSTRACT: The wing skeleton of the Campanian azhdarchid pterosaur Montanazhdarcho minor Padian et al. 1995 is described and compared io other Cretaceous pterosaurs. It is distinguished from all other known azhdarchids by its small mature size, among other characters. Notable features include elongated cervical vertebrae with weak neural crests, a ring-like pectoral girdle, and an unwarped deltopectoral crest that is 30% of the length of the humerus. The ulna is slightly longer than the wing metacarpal, and the articular surface of the radius lacks a central pneumatic foramen. The wing metacarpal has a rounded dorsal condyle but there is no median ridge between the distal condyles. The mandible is edentulous, further support is given to the reduced distal expansion of the deltopectoral crest as an azhdarchid svnapomorphy.
COLLECTION: PaleoBios Archive Public
ID: 145

YOU CAN VIEW THIS DOCUMENT IN THE FOLLOWING WAYS:

  • PDF (from the DocuBase repository)

  • OCR from scanned images.

    Search DocuBase

    Edit this document

  • Back to DocuBase

    BNHM      University of California, Berkeley