Species: placidoi GAFFNEY, CAMPOS & HIRAYAMA, 2001
Etymology: In honor of Dr. Placido Nuvens, Director of the Museu Paleontologico
de Santana do Cariri, Ceara, Brazil.
Holotype: MPSC
Locality: Probably Santana do Cariri, Ceara State, Brazil.
Horizon: Romualdo Member, Santana Formation, Araripe Group.
Biostratigraphy:
Age: Late Aptian or Early Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.
Material: A partial skull, shell, cervicals, and limb elements.
Referred material:
TUTg 1798: Nearly complete skeleton with skull, lower jaw shell, cervicals, and limb elements.
Note: Family: BOTHREMYDIDAE