. The Geology of Minnesota . s glabella is 5 mm. A portion of the left eye-node is retained and appears to have been moderatelyelevated though not to the hight of the glabella; the eyes were approximate andposterior. Among the Russian species of Encrinurus described by Schmijit, we finda very close ally to E. cristatus in his E. seebachi, from the Wesenberg horizon {, pi. XIV, figs. 16—26). In the latter the glabella is less convex and more abund-antly tubercled; but the posterior tubercles are equally spiniform, and the anteriorrow is clearly delimited though not divided in the center.


. The Geology of Minnesota . s glabella is 5 mm. A portion of the left eye-node is retained and appears to have been moderatelyelevated though not to the hight of the glabella; the eyes were approximate andposterior. Among the Russian species of Encrinurus described by Schmijit, we finda very close ally to E. cristatus in his E. seebachi, from the Wesenberg horizon {, pi. XIV, figs. 16—26). In the latter the glabella is less convex and more abund-antly tubercled; but the posterior tubercles are equally spiniform, and the anteriorrow is clearly delimited though not divided in the center. 742 THE PALEONTOLOGY OF MINNESOTA. ICybele wincbelli. Genus CYBELE, Loven, 1845. Cybele winchelli, n. sp. There is a single extended individual of this genus, considerably defaced aboutthe head, so that the glabella is wholly lost; but the outline and proportions of thecephalon and the structure of the other parts are preserved. General outlinelinguate, tapering from the head backward to a subacute extremity; axial length. Fig. 59.—Cybele winchelli. 36 mm., greatest width 26 mm. Surface convex, flattened above. Cephalon transverse,broadly rounded at the sides, somewhat concave on the frontal margin which wasslightly elevated. Length 10 mm.; width 26 mm. As the structure of the glabellais lost, a figure is here introduced copied from one of Schmidts drawings of


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Keywords: ., bookcentury1800, bookdecade1890, bookidgeologyofmin, bookyear1897