Project 497: J. L. Carballido, D. Pol, I. Cerda, L. Salgado. 2011. The Osteology of Chubutisaurus insignis Del Corro, 1975 (Dinosauria: Neosauropoda) from the ‘Middle’ Cretaceous of Central Patagonia, Argentina. Journal of Vertebrate Paleontology. 31 (1):93-110.
Specimen: † Chubutisaurus insignis (MACN:18222/01)
View: Anterior dorsal vertebra in anterior


Titanosauriform sauropods were one of the most widely distributed groups of dinosaurs during the Cretaceous. In contrast to most derived forms from the Upper Cretaceous, the most basal taxa of the group are poorly known. Thus, studies on these forms are of special interest for understanding the origin and early evolution of Titanosauria. Chubutisaurus insignis del Corro, 1975, is known from postcranial remains found in the Bayo Overo Member of the Cerro Barcino Formation (Chubut Group), which is commonly regarded as Aptian—Cenomanian in age. Phylogenetic analyses that include Chubutisaurus recovered this taxon as the sister group to Titanosauria. Nevertheless, most published studies have not included this taxon, probably due to its brief description and fragmentary remains. Fieldwork conducted in the quarry where the holotype was found yielded new materials that are regarded as part of the same specimen. These new materials, together with additional undescribed, and briefly described elements, originally collected by G. del Corro, are described here. The new information allows the recognition of a more extensive diagnosis of this taxon. The phylogenetic analysis presented here resolves Chubutisaurus as the most basal somphospondylian.

Read the article »

Project DOI: 10.7934/P497,
This project containsMatrices
  • 4 Media
  • 2 Matrices
  • 2 Documents
  • 1 Taxon
  • 4 Specimens
Total size of project's media files: 8.99M

Download Project SDD File
Total scored cells: 0
Total media associated with cells: 0
Total labels associated with cell media: 0
Total characters: 0
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 0
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:0/0
Currently Viewing:
MorphoBank Project 497

    Authors' Institutions

    • Museo Paleontológico Egidio Feruglio

    • Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)


    member name taxa specimens media chars character
    cell scorings
    (scored, NPA, "-")
    notes  medialabels
    MorphoBank Curator
    Project Administrator
    (0, 0, 0)
    Maureen Admin
    Full membership
    (0, 0, 0)
    Jose Luis Carballido
    Full membership
    (0, 0, 0)

    Matrix stats not found

    Matrix stats not found

    Project views

    type number of views Individual items viewed (where applicable)
    Total project views19784
    Project overview2384
    Matrix views2037Matrix landing page (1598 views); The Osteology of Chubutisaurus insignis Del Corro, 1975 (Dinosauria: Neosauropoda) from the ‘Middle’ Cretaceous of Central Patagonia, Argentina (199 views); Chubutisaurus insignis Del Corro (240 views);
    Media views5568Media search (3408 views); M85913 (534 views); M85912 (549 views); M85914 (510 views); M85911 (567 views);
    Specimen list3643
    Taxon list1678
    Views for media list2487
    Documents list1150

    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project270
    Matrix downloads2Chubutisaurus insignis Del Corro (2 downloads);
    Project downloads268