It is known from a single skull found near 45 South in Otago .

The only sign of human presence was a single skull resting on the sill of the open door.

The species is represented by a single skull and lower jaw.

It is known from a single 90 millimeter long skull, discovered in Texas in 1908.

Fedexia is known from a single skull found in Pittsburgh, Pennsylvania.

There were two of him, sharing a single skull, a single body.

D. elegans is currently known from a single skull about 112 millimetres in length.

It is known from a single skull found in southern Peru.

M. purdyi is currently known only from a single skull a few post-cranial bones.

It is known from a single incomplete skull from Kenya.