Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Silurian and Devonian
Kinds of fossils: Corals
Quadrangle or area: Craig Quad., Alaska
Shipment No.: A-75-20
Referred by: Churkin, Michael, Jr. , Eberlein, G. Donald
Report prepared by: Oliver, William A., Jr.
Date: 01/26/1976

The collections submitted with covering memo dated October 7, 1975 are covered here in the order in which they are listed on the transmittal form. In general they fall into two groups as indicated on the form. The big exception is collections 75ACn983 which is almost certainly Late Devonian although including Silurian(?) fossils.
Collections 75ACn932 and 30 feet above 66ACn1612 contain no megafossils and are not covered in the report. Both are being discarded.

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73ACn1921 (9348-SD, 9584-SD) , Craig , Limestone (Karheen or Wadleigh). SW 1/4 sec. 1, T. 70 S., R. 80 E., Craig D-4, 15 min. quadrangle. Lat. 55 deg. 49.6 min. N., long. 133 deg. 4.7 min. W.
Amphiporoid strom (no axial canal)
Microplasma?? sp. (very poor preservation)
Tryplasma sp.
75AE184 (9578-SD) , Craig , Massive pure ls. NW 1/4 NE 1/4 sec. 7, T. 69 S., R. 80 E., Craig D-4 15 min. quad. Lat. 55 deg. 54 min. 32 sec., long. 133 deg. 12 min. 1 sec.
Microplasma sp. (same sp. as in 75ACn752)
Tryplasma sp.
74ACn1491 (9392-SD) , Craig , Limey mudstone and feldspathic, lithic wacke with abundant CONCHIDIUM and ATRYPELLA. NE 1/4 SE 1/4 sec. 35, T. 69 S., R. 80 E. (description from Oliver E&R report of 1/27/75)
Rugose coral, genus not determined
75ACn734 (9580-SD) , Craig , Heceta/Karheen Fm. Dark-gray knobbly ls. with Halysitid corals. NE 1/4 SW 1/4 sec. 12, T. 69 S., R. 81 E. Craig C-3 quad. Lat. 55 deg. 54 min., long. 133 deg. 55 min. 20 sec.
Catenipora sp.
Helioplasmolites? sp.
cf. Rhegmaphyllum sp.
75ACn752 (9581-SD) , Craig , Heceta/Karheen Fm. Dark-gray thin-bedded ls. with shaly partings. SW 1/4 sec. 24, T. 68 S., R. 78 E., Craig D-4 quad. Lat. 55 deg. 57 min. 10 sec., long. 133 deg. 16 min. 00 sec.
Clavidictyon
Massive stromatoporoids
Thamnoporoid fragments
Microplasma sp. (same sp. as in 75AE184)
Zelophyllum sp. w Merriam (pp 823-B, pl. 22)
75ACn983 (9582-SD) , Craig , Heceta/Karheen Fm. Tuxekan Passage near Kaishi Pt. Limestone breccia with abundant algae. NE 1/4 sec. 30, T. 69 S., R. 80 E., Craig D-4 quad. Lat. 55 deg. 51 min. 54 sec., long. 133 deg. 14 min. 32 sec.
Disphyllum
Phacellophyllum
Tryplasma
Atrypella cf. A. tenuis K. and A.
75ACn991 (9583-SD) , Craig , Heceta/Karheen Fm. Tuxekan Passage near Kaishi Pt. Knobbly well bedded ls. with argillaceous partings. Highest limestone below cross-laminated ss north of Staney Creek mouth. NE 1/4 sec. 30, T. 69 S., R. 80 E., Craig D-4 quad. Lat. 55 deg. 51 min. 55 sec., long. 133 deg. 14 min. 35 sec.
Amphipora sp.
Tryplasma? sp.
66ACn1612 (9585-SD) , Craig , San Juan Bautista Island P. Miliflores area. Corals collected from locality 66ACn1621 at Triangulation station Juan up section and due west to 66ACn1611. Craig B-4 quad. Lat. 55 deg. 24 min. 25 sec., long. 133 deg. 15 min. 10 sec. (66ACn1612) to 133 deg. 15 min. 34 sec. (66ACn1611).
Cladopora sp.
Breviphrentis-like coral
Charactophyllum? sp.
Macgeea sp. k Merriam (pp 823-B, pl. 25)
Mictophyllum? sp.
66ACn1612b (9586-SD) , Craig , San Juan Bautista Island P. Miliflores area. 20 ft. above 66ACn1612.
Macgeea sp. k Merriam
66ACn1611 (9587-SD) , Craig , San Juan Bautista Island P. Miliflores area. Corals collected from locality 66ACn1621 at Triangulation station Juan up section and due west to 66ACn1611.
Alveolites sp.
Thamnopora sp.