There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 122383 | M. Clapham | Grassy Lake, Medicine Hat (CNC May 1973 collection) (= Canadian amber / coll. McAlpine, Teskey 1973) Middle Campanian - Cretaceous 7 - Canada | Yoshimoto (1975) |
| 122384 | M. Clapham | Grassy Lake, Medicine Hat (CNC June 1974 collection) (= Canadian amber / coll. McAlpine, Daze, Cooper 1974) Middle Campanian - Cretaceous 7 - Canada | Ponomarenko (1981) |
| 123143 | M. Clapham | Grassy Lake, Medicine Hat (P. Boston 1973 collection) (= Canadian amber / coll. Boston) Middle Campanian - Cretaceous 7 - Canada | Borkent (1995) |
| 123213 | M. Clapham | Stewart Valley (Scudder collection) (coll. Harvey Scudder 1970-1980) Barstovian - Cenozoic 5 - Nevada | Heie (2006) |