Sample Detail of
Sample: Sample No. 67ABe367 -- USGS No. 8086-SD
Locality: Field No. 67ABe367
Description: Section
(1)Interbedded yellow-gray, dark mottled dolomite, gray calcilutite and dark dolomite
(2)Dark cherty limestone with silicified colonial and solitary corals 67ABe367-B
(3)Interbedded calcilutite and yellow and gray mottled dolomite. Snails and corals 67ABe367
(4)Calcilutite
(5)Laminated yellowish gray and dark gray dolomite
Coleen Quad., 67o 05 3/4' N., 141o 01 1/2' W.
Location: Alaska Quadrangle: Coleen A-1
Lat.: 67o05.75 ' Long.: 141o01.5 '
Reference
Title: Report on Referred Fossils ,  1968 (02/27)
Part III covers those collections grouped as Ordovician? and Silurian?
Report by: William A. Oliver , Jr.
Referred by: William P. Brosge
Age: Wenlockian-Ludlovian
Comment:This is a Silurian assemblage, probably Middle or Late Silurian (Wenlock or Ludlow).
Occurrence(s)
No. Group Name Qty Notes
1 Rugose Corals "Aphyllum" sp.
2 Rugose Corals Pycnactis? sp.
3 Rugose Corals Zelophyllum sp.

Title: Report on Referred Fossils ,  1967 (11/17)
This report is based on gastropods in some of the collections submittted by W. P. Brosge and W. R. Reiser. All material is being retained and has been assigned locality numbers in the Silurian-Devonian (SD) series.
Report by: Ellis L. Yochelson
Referred by: William P. Brosge
Age: Ordovician (Ordovician?)
Comment:One euomphaloid gastropod is present. It is low-spired and has a flattened upper whorl face. The specimen is probably generically indeterminate, but by throwing caution entirely to the winds one could say that this was Helicotoma. If this wild identification on inadequate material is correct, this collection would also be Ordovician.

There are assorted fillings in the rock with circular cross-sections. These might be snails, but preservation is so different from the one authentic gastropod that I want nothing to do with them.

Occurrence(s)
No. Group Name Qty Notes
1 Snails Helicotoma? sp.