Alaska Paleontological Database

Reference Detail

Report on Referred Fossils

Stratigraphic range:

Devonian

Kinds of fossils:

corals and stromatoporoids

Quadrangle or area:

Livengood A-4 quad., Alaska

Shipment No.:

A-60-26

Referred by:

Taber, Bond

Report prepared by:

Oliver, William A., Jr.

Date:

02/13/1961

Collection 60ATb 178 was previously reported on as probably Silurian (12-2-60). Study of new thin sections of the abundant Microplasma previously reported has shown the coral to be associated in the rock with the stromatoporoids Amphipora sp. and Idiostroma? sp. These two stromatoporoids are characteristic Middle or lower Upper Devonian genera and indicate that the collection is almost certainly Devonian rather than Silurian in age.

User Note module to be added

60ATb 178 , Livengood , Tolovana Limestone of Silurian Age. Located in NE corner of Minto Flats, on South side of Ridge between Tatalina & Tolovana Rivers. Believed to be from Low in Massive bedded limestone section. Coord. (N 6.3, E 2.1) Livengood A-4, Alaska 1953 edit.

Microplasma sp.

Amphipora sp.

Idiostroma? sp.