Genus: Peckemys LYSON & JOYCE, 2009b
Etymology: In reference to Fort Peck, Montana, where the type specimein was
found, and Greek, emys, "pond turtle."
Species: brinkman LYSON & JOYCE, 2009b
Etymology: In honor of Dr. Donald Brinkman, who has written numerous papers
on baenid morphology and systematics and who recognized the Maastrichtian representatives
fo Plesiobaena belong to a species distinct from Plesiobaena antiqua. The species
epithet hs here formed and used explicitly as a nown in apposition, as is permited
by article 31.1 of the ICZN.
Holotype: UMMP 20490
Locality: "Near Fort Peck, Montana"
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Skull, dentary and an almost complete skeleton.
Referred material:
Locality: Turtle Graveyard Locality, North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
MRF 231: A complete uncrushed skull.
Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 49795: A complete uncrushed skull with lower jaws.
Locality: Baenid Badlands, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 113318: Skull with lower jaw and fragmentary shell.
Locality: Colorado.
Horizon: Laramie Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCM 49318: A fews posterior part of a skull.