Project 3332: R. V. PĂȘgas, F. R. Costa, A. W. A. Kellner. 2018. New Information on the osteology and a taxonomic revision of The genus Thalassodromeus (Pterodactyloidea, Tapejaridae, Thalassodrominae). Journal of Vertebrate Paleontology. 38 (2):e1443273.
Specimen: † Thalassodromeus sethi (unvouchered)
View: skull cast


Thalassodromeus sethi (Pterodactyloidea, Tapejaridae, Thalassodrominae) is a unique pterosaur from the Romualdo Formation, Araripe Basin (Early Cretaceous, Albian). A large sagittal cranial crest (the largest known ossified crest of any pterosaur) and unusual toothless bladed jaws constitute some of its outstanding anatomical features. Its holotype (DGM 1476-R, almost complete skull and mandible in three dimensions) represents one of the largest pterosaur skulls ever found. Here, we provide a detailed osteological redescription of the holotype, which has only been preliminarily described. We also describe and depict for the first time some skeletal regions of Th. sethi, including the occiput, the palatal openings, and a dentary fragment. Finally, in the light of new information concerning this species, we revisited the specimen NMSG SAO 251093 (an incomplete mandible), also from the Romualdo Formation and originally referred to Th. sethi but recently redescribed as a new species of dsungaripterid pterosaur named Banguela oberlii. Here, the analysis of a cast (MN 4703-V) and its inclusion in a phylogenetic analysis recovered NMSG SAO 251093 within the Thalassodrominae, as a sister taxon of Th. sethi and indeed different from it at the species level. We hereby rename it Thalassodromeus oberlii, comb. nov. These considerations provide new data for discussions concerning the morphology of the Tapejaridae, the diversity of the Araripe pterosaur fauna, and the complex evolution of the pterodactyloid palatal region, as well as data for future morphofunctional studies of Thalassodromeus.

Read the article »

Article DOI: 10.1080/02724634.2018.1443273

Project DOI: 10.7934/P3332,
This project contains
  • 1 Media
  • 2 Documents
  • 1 Taxon
  • 1 Specimen
Total size of project's media files: 3 MB

Download Project SDD File
Currently Viewing:
MorphoBank Project 3332
  • Creation Date:
    12 November 2018
  • Publication Date:
    28 February 2019
  • Project views: 725


    member name taxa specimens media
    Tanya Berardini
    Project Administrator
    Last logged in 02/28/19

    Project has no matrices defined.

    Project views

    type number of views Individual items viewed (where applicable)
    Total project views725
    Project overview146
    Documents list80
    Media views198Media search (168 views); M658788 (30 views);
    Taxon list77
    Specimen list114
    Views for media list67

    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project18
    Project downloads17
    Document downloads1Character list and states from Supplemental Data (1 download);