. Bulletins of American paleontology. Alaskan Bajocian ammonites: AA'Estermann 393. Text-figs. 21a, b. Septal sutures of Erycitoidcs (Kialagvikcs) spp., from Wide Bay. a) E. (K.) kialagvikrnsis (White), near end of large phragmocone at 28 mm. diameter, loc. L543 in the Upper E. fiov:clli Zone (PI. 63, fig. 2) ; X 4. h) E. (K.) Ic-vis, sp. nozK, 1/4 whorl before end of phragmocone at 16 mm. diameter, incomplete, reversed. Umbilical lobes only slightly "retracted", later sutures be- come finally "non-retracted", loc. A9 in the Middle E. Iioicrlli Zone (PI. 64, fig. 9 ) ; X 8.
. Bulletins of American paleontology. Alaskan Bajocian ammonites: AA'Estermann 393. Text-figs. 21a, b. Septal sutures of Erycitoidcs (Kialagvikcs) spp., from Wide Bay. a) E. (K.) kialagvikrnsis (White), near end of large phragmocone at 28 mm. diameter, loc. L543 in the Upper E. fiov:clli Zone (PI. 63, fig. 2) ; X 4. h) E. (K.) Ic-vis, sp. nozK, 1/4 whorl before end of phragmocone at 16 mm. diameter, incomplete, reversed. Umbilical lobes only slightly "retracted", later sutures be- come finally "non-retracted", loc. A9 in the Middle E. Iioicrlli Zone (PI. 64, fig. 9 ) ; X 8. Bay], probably sea cliii between mouths ot Pass Creek and Short Creek, Alaska Peninsula, Mesozoic loc. 20086. Stratum typicum.—Probably E. Jwivelli zonule. Louver E. hoxo- cJli Zone, Kialagvik formation. Diagtiosis.—A relatively large species ol E. (Kialagtnkes); lat- eral spines or nodes, il present, restricted to nucleus, costae mostly straight except for body chamber. Age.—Late Early Bajocian (late Aalenian), E. hoiveUi Zone. Material.—? Two body chamber fragments from A 449, frag- ments from A 443, A 447, one from each 19766 (E 35/36), 19767 (F 37) ( rare in the Lower E. howelli Zone); 4 fragments from A 7, 5 fragments from A 9, 2-f- from A 454, 8-|-fragments from A 8, fragment from A 5, 1-f-fragment from A 10, 1-|-fragment from A 11, 11-f-from L 5-13; ( abundant in the Middle and Upper E. howelli Zone). Remarks.—The holotype is so jjoorly preserved and the de- scription so incomplete (defined to the body chamber) that the species name might have to be declared a 'nomen dubium' if abundant forms undoubtedly conspecific had not been found subse-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N
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