. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. Fig. llfi. Spirifer tivulptilis. (from Hall). Brachial and pedicle valves with the suiii- m i t liattened or grooved; small mimber of sharp a n d abrupt angular plications, and zigzag laniellose lines of growth. Found in the Encrinal limestone, at Section 5, etc. Spirip^er (Delthyris) D'Orbigny. (Fig- 117.) (Pal. N. Vol. lY., p. 222, PI. XXXY^ S. zig- zag.) Distingiiisbing Charncters.— General appearance like a short-winged, bulging and i-obust *S'. mucronatus; high con- cave cardinal area of ped
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. Fig. llfi. Spirifer tivulptilis. (from Hall). Brachial and pedicle valves with the suiii- m i t liattened or grooved; small mimber of sharp a n d abrupt angular plications, and zigzag laniellose lines of growth. Found in the Encrinal limestone, at Section 5, etc. Spirip^er (Delthyris) D'Orbigny. (Fig- 117.) (Pal. N. Vol. lY., p. 222, PI. XXXY^ S. zig- zag.) Distingiiisbing Charncters.— General appearance like a short-winged, bulging and i-obust *S'. mucronatus; high con- cave cardinal area of pedicle valve; incurved beak; sharply defined sinus, bounded bv strong plications: abruptly. 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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