Foraminifera of the Lodo Formation, central California; Part 2, Calcareous foraminifera (Miliolidae and Lagenidae, part)

In part 2 are described and illustrated 169 species or other systematic variations, one a miliolid, the others belonging to the lagenid genera Cristellaria, Ro'bnlus and HemirofruUna.Most of the systematic variations are too rare to merit naming.Their observed stratigraphic distribution is shown in a table. STRATIGRAPHIC DISTRIBUTION OF MILIOLIDAE AND LAGENIDAE, PARTCristellaria mediolodensis Israelsky n. sp. Plate 12, figures 24, 25In side view subovate, apertural end acutely pointed, opposite end rounded, final margin of last chamber merging with periphery of earliest visible chamber without offset, sutures flush, earliest radial, nearly straight and meeting periphery at nearly 90 degrees, later sutures tangential to umbo, two previous to last weakly reflexed, meeting periphery at about 45 degrees, the last slightly sinuous and meeting periphery at nearly 90 degrees, umbo slightly eccentric, height of chambers at periphery irregular, rim well defined on early chambers, poorly defined on later; in edge view subelliptical, weakly produced at either end, greatest thickness through umbos, final face strongly convex blending imperceptibly into lateral faces of final chamber ; aperture terminal with few radial striae. Specimen Sample USNM Dimensions in millimetersLength Width Thickness Holotype-------.. 65 548961 0.53 0.43 0.25