Whitesail Lake Map-Area

2 miles north of Tahtsa River, 5 miles east of Sibola Creek

Catalogue No. 13756. H. Frebold
Trigonia sp.
“Rhynconella’” sp.

Age: Probably Middle Jurassic

13 miles east of Fossil Canyon, 1 mile north of Tahtsa River

Catalogue No. 13747. H. Frebold
Ammonites indet. (of Middle Jurassic affinities )
Belemnites
? Pinna indet.
? Trigonia indet.
Other poorly preserved pelecypods
Age: Probably Middle Jurassic

Tahtsa River 2 miles west of Mosquito Hills

Catalogue No. 13755. H. Frebold
Ammonites sp. indet.
Trigonia (common; some specimens similar to Trigonia ferrieri
McLearn)
Other poorly preserved pelecypods
“Terebratula’ sp. indet. (apparently the same form as in catalogue
Nos. 13751, 13761 and 13759)
Age: Probably Middle Jurassic

4 mile east of 13755

Catalogue No. 13751. H. Frebold
“Terebratula” sp. indet. (same form as in 13755)
Age: Same as collection 13755

2 miles south of Nadina Lake

Catalogue No. 18279. H. Frebold
Stephanoceras?
Trigonia sp. indet.
Age: Probably Middle Jurassic

Two collections were made just west of the north end of the Mosquito
Hills about 3 miles north of Tahtsa River.

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