Species: lakustai CURRIE, LANGSTON & TANKE, 2008
Locality: Pipestone Creek, Grande Prairie, West of Edmonton, Alberta Province, Canada.
Horizon: Wapiti Formation.
Biostratigraphy:
Age: Maastrichtian Stage, Upper Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
TANKE & FARKE, 2003, 2006
RTMP89.55.1234: Nearly complete skull.
Note: Palaeopathology, left side of skull has a large circular penetrating
lesion, 4 POLs, left squamosal, resorption zone, left squamosal, raised protuberance,
left maxilla.
TANKE & ROTHSCHILD, 2010
RTMP 89.55.1091: Normal jugal with small cicular depressions with a floor texture resembling trabecular bone.
RTMP 89.55.899: Right half of skull nasal boss has unusual modified.
RTMP 1989.55.188: Skull, left side with complete jugal, squamosal, exoccipital.
Right side missing distal exoccipital, jugal, squamosal, both quadrato and
quadratojuals missing. "Louise".
Note: Pathology, the right tip of the rostrum has been lost on both sides.
RMTP 86.55.304: Jugal with relatively smooth-floored cicular depressions, pathologic?
RTMP 87.55.101: Quadrate with three anomalies, pathologic.
RTMP 89.55.1072: Quadrate with two pathologies; a circular depression on the articulating surface and has a crack that runs diagonally between the two distal condyles.
RTMP 1986.55.111: Fragmentary skull.
Note: Has a smool, flattened lobe of bone on the antero-ventrla edge of the
left squamosal, possible from an injury.
RMTP 88.55.90, 89.55.125: Two subadult parietals with pathologies.
RMTP 87.55.210: Parietal lacks left p3 frill spike; it suffered massive fracture injuries and unusual post-trauma healing.
RTMP 89.55.1085: Parietal has two pathologic P3 frilll spike.
RMTP 89.55.1503: Possible pathologic frill with irregular right P3 frill spike.
RTMP 89.55.978: Pathologic isolated cervical neural arch wiht the right prezygapophysis misshapen and several concentric folds of ridges occuring external to the zygapophyses on the dorsal side of the transverse process. Disease-related.
RMTP 88.55.52: Pathologic a reduced and malformed zygapophysis, but also has deep pitting on the centrum endplate. Disease-related.
RTMP 89.55.363: Proximal caudal with osteopathy.
RTMP 89.55.287: Mid-caudal wiht osteopathy.
RTMP 87.55.102: 4 fused caudal vertebrae.
RTMP 87.55.190: Left scapula with two smooth, low rounded co-joinged calluses on the thickened ridge (scapualr spine) that bisects the scapualr blade.
RTMP 85.112.70: Mild stress fracture on a phalange.
RTMP 67.19.85: Phalange with severe form of a stress fracture.