Genus: Notochelys OWEN, 1882
Etymology: Greek, noto, "south" and Greek, chelys, "turtle."
= Notochelone LYDEKKER, 1889
Etymology:

Species: costa OWEN, 1882
Etymology:
= Notochelone costa (OWEN, 1882) LYDEKKER, 1889

Holotype: AM F67326 (USDG 6961)

Locality: Flinders River, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Albain Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Middle Cretaceous.

Material: Anterior portions of carapace and plastron with some limb material. Much further material representing almost every portion of the skeleton has been collected by the QM, including at least 3 almost
complete and well preserved skulls.

Plastoholotype: Australian Museum, F. 3232: Anterior part of Carapace and plasteron.

Referred material:

LEES, 1986/GAFFNEY, 1981

Locality: Wyangarie Station, near Hughenden, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Albain Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Middle Cretaceous.

Material:

QM F2174:

 

Locality: Parish of Hilton, near Julia Creek, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Albain Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Middle Cretaceous.

Material:

QM F2249:

 

Locality: Borree Park Station, near Richmond, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Albain Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Middle Cretaceous.

Material:

QM F5793:

 

Locality: O’Connell Creek, Wyangarie Station, near Hughenden, Queensland State, Australia.

Horizon: Toolebuc Formation.

Biostratigraphy:

Age: Albain Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Middle Cretaceous.

Material:

QM F12816:

Note: According to Lees, 1986’QM F12816 is a previously unregistered specimen which was found to match pl. 3, De Vis, 1911 and consequently was registered. Gaffney (1981) gives the following numbers QM F1555, QM F5469, QM F12994, QM F24132 when referring to N. costa. These numbers are incorrect. The Queensland Museum does not hold any specimens of N. costa bearing these numbers.’