ENPages
p. 1
Cephalopoda
Gast
Pic 3 p 319
Conularia Trentonensis, Hall, Pal. of N.Y. Vol. 1 p. 222 pl. 59 fig. 4.
Pyramidal, obtusely quadrangular; angles sulcate; sides somewhat rounded; a slightly impressed line along the centre of each side, from the apex to the base; surface marked by sharp obliquely transverse rid= ges, which, extending from each angle of the shell towards the mouth, meet those from the opposite angle in the Centre of each side, producing a slightly impressed line, along which the ridges are less prominent; longitudinally marked by finer striae which are slightly con = vergent towards the [angles] angles,, and divergent from the centre of each side (these striae are most prominent in the depressions between the transverse ridges); septa transverse, very convex,
p. 2
smooth; siphuncle excentric.
L. 1.9 D 1.1
Lower Silurian - Trenton Limestone
Middleville, Jacksonburgh + Trenton Falls N.Y. ; - Richmond, Ja.;
Wisconsin.
Penna
p. 4
Conularia granulata Hall, Pal. of N.Y. Vol. 1 p. 223 pl. 59 fig. 5
conical or pyramidal pyramidal; specimen compressed, tapering rapidly to an acute point; angles marked by linear grooves or sulci; surface marked by distinct transverse striae, which are crossed by finer longitudinal ones, giving, under a magnifier, a granulated or papillose appearance to the shell; no septa or siphuncle visible.
L. 2.0 D. 1.0
