July 28, 1980

To: Mr. Robert B. Blodgett
Department of Geology, O.S.U.
Corvallis, Oregon 97331

Dear Robert:

List below are the identifications of the tabulates from the Alaskan material you sent me: (see faunal lists)

I have compared your material with the illustrations in Churkin and others (1975)(USGS Prof. Paper 823 A,B,C,D,) and the following comparisons appear reasonable:

Favosites sp. A = Favosites sp. (Pl. 20, fig. 1,2)
Pachyfavosites sp. A = Pachyfavosites sp. (Pl. 20, fig. 3,4)
Pachyfavosites sp. B = Pachyfavosites sp. (Pl. 20, fig. 5,6)
Parastriatopora sp. = Parastriatopora sp. (Pl. 20, fig. 9, 10)

Except for the absence of Heliolites your faunas appear similar in generic composition to the fauna listed in Churkin and others (1975) for the McGrath quad. (p. 33, table 14). The one exceptio to this is your 79RB19 which also contains Parastriatopora sp. which Churkin and others (1975) list from the Sleetmute quad (p. 33, table 15).

The tabulates do not indicate a specific age interval, but they are compatible with the Eifelian age suggested by your conodont, brachiopod, and goniatite evidence.

Hope this information is of help to you. Let me know if I can be of any further help.

Sincerely,

Richard A. Flory
Associate Professor of Geology