Species: mbaxi MATEUS, JACOBS, POLCYN, SCHULP, VINEYARD, NETO & ANTUNES, 2009
Etymology: Mbaxi means turtle in Angolan Nyaneka-Nkumbi and Kimbundo languages.
Holotype: MGUAN-PA 002
Locality: Iembe, Bengo Province, Angolia.
Horizon: Tadi Beds, Itombe Formation.
Biostratigraphy:
Age: Upper Turonian Stage, Late Gallic Subepoch, Early Gulf Epoic, Middle Cretaceous.
Material: An almost complete skull, an ungual phalanx, 2 cervical vertebrae, porximal part of the ilium, shell parts, and a few uninformative fragments.