Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Ordovician - Devonian
Kinds of fossils: Corals
Quadrangle or area: Craig, Petersburg, Alaska
Shipment No.: A-68-16
Referred by: Ovenshine, A. Thomas
Report prepared by: Oliver, William A., Jr.
Date: 12/03/1968

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.

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68AOv1631 (8235-SD) , Petersburg , West shore of island southeast of Shrubby Island. 1.26 miles at 191 degrees from triangulation station Shrub.
Thamnopora sp.
68ABx1001B (USGS 8251-SD) , Craig , Karheen Narrows area. 1.82 miles at 093 degrees from triangulation station Quince.
Acanthophyllum sp.
68ABx1002A (USGS 8252-SD) , Craig , Karheen Narrows area. 1.82 miles at 093 degrees from triangulation station Quince.
Acanthophyllum sp.
68AWd861 (USGS 6682-CO) , Petersburg , South end of Exchange Island. 1.09 miles at 272 degrees from triangulation station Change.
Calapoecia sp.
Catenipora sp. (aff. C. gracilis)
68ABx644 (USGS 8256-SD) , Petersburg
Favosites sp.
Thamnopora sp.
Undetermined rugose coral
68ACn322 (USGS 8242-SD) , Petersburg
Amphipora sp.
Tryplasma sp. cf. T. devoniana
Cystimorph cf. Microplasma (of some authors)
68AWh4 (USGS 8245-SD) , Petersburg , El Capitan Passage. 0.50 miles at 247 degrees from triangulation station Fish.
Massive stromatoporid
Auloporoid coral
Favosites sp.
cf. Breviphyllum sp.
Cystimorph cf. Microplasma (of some authors)
68AEs163 (8246-SD) , Petersburg , El Capitan Passage area, eastern side. 1.60 miles at 150 degrees from triangulation station Bay at the mouth of Devilfish Bay.
Amphipora sp.
Favosites sp.
Disphyllum sp.
Tryplasma sp.
68AOv471 (8241-SD) , Petersburg , North side of Devilfish Bay, El Capitan Passage. 0.65 miles at 308 degrees from triangulation station Bay.
Thamnoporoid corals
Auloporoid corals?
68AOv462 (8253-SD) , Petersburg , North side of Devilfish Bay. 0.53 miles at 311 degrees from triangulation station Bay.
Thamnoporoids
Cystimorphs, 2 or 3 spp. (fragments)
68AEs117 (8243-SD) , Petersburg
Amphiporoid stromatoporoid (Clavidictyon?? sp.)
Tryplasma? sp. 1
68AEs126 (8248-SD) , Petersburg , Silurian, stratigraphic position uncertain. East shore of El Capitan-Passage 0.87 miles at 344 degrees from triangulation station Last.
Favosites sp.
Thamnoporoid corals
Tryplasma? sp. 1
68AEs122 (8257-SD) , Petersburg
Tryplasma? sp. 1
68AWd602 (8238-SD) , Petersburg
Stachyodes sp.
Thamnopora sp.
Rugose corals