. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. NIAGARA FALLS AND VICINITY 203 Whitfieldella oblata Hall (Fig. 125). Atrypa oblata Hall {1852. Pal. N. Y. 2:9, pi. 4) Distinguishing characters. Oblate form, nearly as broad as high; broadest anteriorly; sloping abruptly to the beak; small, well. Fig. 125 Whitfleldella oblata defined beak; nearly equally convex valves; central groove on pedicle valve and slight elevation on brachial valve; surface marked only by lines of growth. Found in the upper Medina sandstone at Niagara. Also at Lockport (Hall). Whitfieldella
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. NIAGARA FALLS AND VICINITY 203 Whitfieldella oblata Hall (Fig. 125). Atrypa oblata Hall {1852. Pal. N. Y. 2:9, pi. 4) Distinguishing characters. Oblate form, nearly as broad as high; broadest anteriorly; sloping abruptly to the beak; small, well. Fig. 125 Whitfleldella oblata defined beak; nearly equally convex valves; central groove on pedicle valve and slight elevation on brachial valve; surface marked only by lines of growth. Found in the upper Medina sandstone at Niagara. Also at Lockport (Hall). Whitfieldella intermedia Hall (Fig. 126). Atrypa intermedia Hall (1852. Pal. X. Y. 2:77, P1- 24) Distinguishing characters. Obovate; rapidly expanding to front, which is abruptly rounded; length and width nearly equal; convex near beak, flatter toward front; slight frontal sinuosity; faint growth lines. Found in the Clinton lenses and lowest Clinton shales at Niagara. Also in the upper Clinton lime- stone at Lockport (Hall). Whitfieldella cylindrica Hall (Fig. 127). Atrypa cylin- drica Hall (1852. Pal. N. Y. 2:76, pi. 24). 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 Buffalo Society of Natural Sciences. Buffalo, N. Y. : Buffalo Society of Natural Sciences
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