. Bulletins of American paleontology. 30 Bulletin 348 Table 9. —Measurements of Fanmnoceras (Fanninoceras) fannini McLeam, 1930. All measurements are in mm. specimen no. DMAX D UD U WW WHD WH WHD WWWH GSC 6493 + GSC 6494 — — 7 GSC 6495 _ — — GSC 6519' 7.
. Bulletins of American paleontology. 30 Bulletin 348 Table 9. —Measurements of Fanmnoceras (Fanninoceras) fannini McLeam, 1930. All measurements are in mm. specimen no. DMAX D UD U WW WHD WH WHD WWWH GSC 6493 + GSC 6494 — — 7 GSC 6495 _ — — GSC 6519' GSC 9054- 21 GSC 98594 GSC 98596 12 25 GSC 98597 12 GSC 98598 28 GSC 87799 _ — — — — — GSC 98600 ' Holotype of F. dolmagii. - Holotype of F. fannini. figs. 7. 8; refigured herein, PL 3, fig. 4); GSC 6495 (pi. 8, figs. 5-8; refigured herein, PI. 3, fig. 1). A/a?fna/.—Approximately 65 specimens in calcar- eous sandstone and siltstone of the Fannin Formation. Measurements. —See Table 9. Discussion.—At similar shell diameters, F. (F.) dol- magii (holotype refigured on PI. 3, fig. 3) is indistin- guishable from F. ( fannini and the two are here considered synonyms. In terms of volution, F. (F.) fannini belongs to the intermediate group of species where U= at large shell diameters. The similarly volute F. (F.) kunae. which also occurs in the Queen Charlotte Islands, dif- fers by having sharper, more densely spaced ribs that project more strongly onto the venter. Occurrence. — F. fannini is widely distributed in the eastern Pacific where it is most characteristic of the lower part of the Upper Pliensbachian; i
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