Sample Detail of
Sample: Sample No. MC-6
Locality: Field No. MC-6
Description: McCallum Creek sequence; approx 370 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at an elevation of about 5,900 ft on summit ridge (see Rowett, 1969, text-fig. 3, loc. MC-6). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestone and mudstones, alternating; bedding thin to medium, regular; strike N60°W, dip 60°SW; elevation approximately 5,900 feet, summit of south end of Rainbow Mountain which there trends NNW, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 118)]
Location: Alaska Quadrangle: Mt Hayes B-4
Lat.: 63o16.337 ' Long.: 145o36.518 '
Reference
Title: Stratigraphic distribution of Permian corals in Alaska ,  1975
Information tabulated by major regions of Alaska is the result of a restudy of all available Permian rugose and tabulate corals from Alaska, completed in 1972. Most specimens were collected by members of the U.S. Geological Survey, beginning with corals collected by F.C. Schrader in 1902, but this list also includes collections of Permian corals made by the writer between 1963 and 1968. Almost half of the specimens studied required revised identifications at the generic level, primarily due to recent changes in taxonomy and classification. No attempt was made to identify specimens at the species level except for a comparatively few specimens which obviously were conspecific with described species and for species described by Rowett (1969). Stratigraphic and locality information provided by the original collectors also has been updated where possible by reference to more recent geologic studies and mapping in Alaska. Some stratigraphic and locality information nevertheless remains unclear. PC number refer to collections catalogued in the U.S. Geological Survey Permian-Carboniferous catalog: UA specimen numbers refer to specimens stored at the University of Alaska at College, Alaska.
Report by: Charles L. Rowett
Age: Permian
Formation: McCallum Creek sequence
Occurrence(s)
No. Group Name Qty Notes
1 Rugose Corals Heritschioides summitensis Rowett, 1969

Title: Upper Palaeozoic Stratigraphy and Corals from the East-Central Alaska Range, Alaska ,  1969
Report by: Charles L. Rowett
Age: Early Permian (Early Permian (Wolfcampian))
Formation: McCallum Creek sequence
Comment:Approx. lat/long based on digitization of locality as shown on Text-fig 3 map is 63°16.337' N., 145°36.518' W.

Locality shown on Text-Fig. 3

Note by RBB: subsequently assigned as Univ. Alaska (Fairbanks) Museum loc. A-143

Occurrence(s)
No. Group Name Qty Notes
1 Rugose Corals Heritschioides summitensis n. sp. Holotype corallum shown on Pl. 4, figs. 3a-h; Paratype corallum shown on Pl. 4, fig. 1a; another Paratype corallum shown on Pl. 4, figs. 2a-d
2 Brachiopods a few poorly preserved brachiopods
3 Algae unidentified marine algae
4 Fusulinids schwagerinid Fusulinidae