. Bulletins of American paleontology. 56 Bulletin 255. Text-fig. 19. — Cross-section of Pscudolioceras costistriaium, n. sp., holo- type, incomplete body chamber with damaged phragmocone; X !• complete body chamber witli damaged phragmocone. Repository: McM. J 1056. Locus typicus. — Locality WA 11 at 30 m, sea cliff at shore of Wide Bay, Alaskan Peninsula. Stratum typicutn. —Upper Pseudocidoceras zonule ( m above concretions bed), upper Kialagvik Formation. Age. — S. smverbyi Zone, Bajocian. Material. — The holotype, two small immature (? or micro- conchiate) specimens and one fragmen


. Bulletins of American paleontology. 56 Bulletin 255. Text-fig. 19. — Cross-section of Pscudolioceras costistriaium, n. sp., holo- type, incomplete body chamber with damaged phragmocone; X !• complete body chamber witli damaged phragmocone. Repository: McM. J 1056. Locus typicus. — Locality WA 11 at 30 m, sea cliff at shore of Wide Bay, Alaskan Peninsula. Stratum typicutn. —Upper Pseudocidoceras zonule ( m above concretions bed), upper Kialagvik Formation. Age. — S. smverbyi Zone, Bajocian. Material. — The holotype, two small immature (? or micro- conchiate) specimens and one fragment of a large phragmocone from WA 11 at 30 m; one small immature (? or microconchiate) s]X^cimen from USGS 19862. All are internal molds with test re- mains from the S. sowerbyi Zone of the Kialagvik Formation, Wide Bay. Diagnosis. — An involute species of Pscudolioceras with strong umbilical ridge, tabulale-unicarinate venter, striate costae and weak intercalatories. Description. — The whorls are involute and strongly com- pressed. The innermost whorls, up to approximately 15 mm diameter, are compressed-oval as in most other species. Subsequent-. 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. Y. , Paleontological Research Institution [etc. ]


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