. Bulletin of the Buffalo Society of Natural Sciences. Natural history -- New York (State); Natural history. Fig. 125. Amboccelia umbonata. Dorsal, ventral, profile, and cardinal views of a large and well-preserved specimen of normal form ; interior of a brachial valve enlarged, show- ing muscular impressions, sockets, etc.; interior of pedicle valve enlarged, showing area, delthyrium, teeth, etc.; mold of interior, with spiral brachidium embedded in it, enlarged (from Hall). sinus in the pedicle valve, which is very gibbous; semi-ellip- tical brachial valve, which is faintly convex at the umb
. Bulletin of the Buffalo Society of Natural Sciences. Natural history -- New York (State); Natural history. Fig. 125. Amboccelia umbonata. Dorsal, ventral, profile, and cardinal views of a large and well-preserved specimen of normal form ; interior of a brachial valve enlarged, show- ing muscular impressions, sockets, etc.; interior of pedicle valve enlarged, showing area, delthyrium, teeth, etc.; mold of interior, with spiral brachidium embedded in it, enlarged (from Hall). sinus in the pedicle valve, which is very gibbous; semi-ellip- tical brachial valve, which is faintly convex at the umbo, and concave below the middle and at the sides; shell slightly wider than long. Found in the Moscow shales (very rare in the upper, but common in the lower two or three feet, extremely abundant in the lower foot), at Sections 4 and 5; Encrinal limestone, at Section 5 (rare); Lower shales, at Sections 5 to 8, and on the Lake Shore (more or less abundant throughout); Transi- tion shales, on the Lake Shore (frequent); Marcellus shale, in Bay View Cliff (not uncommon). Amboccelia nana. Grabau. (Fig. 126.) (1898: Ambocoe- lia umbonata, var. nana. Grabau. Report of N. Y. State. 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. : The Society
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