RUSSELL, 1967
Locality: Locality no P6502B, lower Anderson River area, District of Mackenzie, Northwest Territories Province, Canadian Arctic.
Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material:
NMC 10430: Complete right fore- and hind -flipper, incomplete left hindflipper, gastroliths.
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SATO & TANABE, 1998, SATO & STORRS, 2000
Locality: A riverside cliff of Obirashibe River, 142’01”E, 44’06”E, Obira Area, Hokkaido, Honshu Island, Japan.
Horizon: Middle Yezo Group.
Biostratigraphy: Biostrina nipponica Zone.
Age: Cenomanian Stage, Uppermiddle Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.
Material:
UMUT MV 19965: Right half of the pectoral girdle, nearly complete right forelimb, several disarticulated vertebrae, gastralia and a portion of the right pubis.
Note: Large amount of isolated ammonoid jaws in the stomach area; possibly
used as gastroliths?