Sample Detail of
Sample: Sample No. 68AOv1631 -- USGS No. 8235-SD
Locality: Field No. 68AOv1631
Description: West shore of island southeast of Shrubby Island. 1.26 miles at 191 degrees from triangulation station Shrub.
Location: Alaska Quadrangle: Petersburg A-3
Lat.: 56o12.05 ' Long.: 132o55.35 '
Reference
Title: Report on Referred Fossils ,  1972 (03/10)
Report by: J. Thomas Dutro , Jr.
Referred by: A. Thomas Ovenshine
Age: Late Silurian
Formation:Heceta Limestone (Revised; Robert B. Blodgett, 02/09/2008 )
Comment:Dutro comments "A number of specimens of pentameroids with costate ornament, probably both Kirikidium and Rhipidium. Age is Late Silurian." [Transmittal sheet states that collection is "Silurian, fairly low in formation."]
Occurrence(s)
No. Group Name Qty Notes
1 Brachiopods pentameroid with costate ornament, probably both Kirkidium and Rhipidium

Title: Report on Referred Fossils ,  1968 (12/03)
All of the collections covered by your request of October 10, and thought to contain corals, are included in this report. The collections are grouped as indicated on your page 5, and under the same headings. From my point of view the first three group are logical as the collections in each of these groups seem to be of the same age. --- Some collections in the El Capitan Passage Group are definitely Devonian while others are more likely Silurian. I should emphasize however that all collections in this group may be Devonian.
Report by: William A. Oliver , Jr.
Referred by: A. Thomas Ovenshine
Age: Late Silurian
Formation:Heceta Limestone (Revised; Robert B. Blodgett, 02/09/2008 )
Occurrence(s)
No. Group Name Qty Notes
1 Tabulate Corals Thamnopora sp.