Lockeia siliquaria James, 1879

Description: Almond-like  or oval-shaped traces. Typically, these forms taper toward one end with the other end more rounded. Some specimens exhibit irregular shapes. Lenght is 12,3-45,2 mm and width is 8,9-22,7 mm. Large specimens display hypichnial ridges up to 17,9 mm deep, typicall the depht is about 10 mm. The surface usually is mooth, although some specimens show corrugated lateral sides. A marginal rim is observed in a few specimens. a longitudimal ridge is, or carena, is prersent occasionally. Some large specimens are strongly tilted to one side.large specimens may occur singly or in patches, forming grops of three or more, Overlap between specimens are quite common.
 

Emended diagnosis: Thin, elongated to stout, generally high-relief, almond-shaped, smooth hypichnial ridges, with strongly arcuate to almost obtuse terminations; occasionally showing vertical spreite.

Description: Smooth, hypichnial, predominantly straight, variously oriented, gregarious, rarely single, almondshaped mounds elongated in different degree, with pointed or obtuse terminations. Some of the mounds are slightly arcuate or winding. Two size classes can be distinguished: (a) 26 mm long, and 7 mm across in the widest portion, and (b) 5 mm long and 2 mm across.

Smooth, almond-shaped bulges preserved as low convex hyporeliefs. Dimensions of the bulges range from 4 × 1 mm to 10 × 2.5 mm.

Elongated, almond-shaped protuberance with smooth borders. The majority of the specimens shows a median ridge, evidencing the bilateral symmetry of the structure. Fill is lithologycally similar to the host rock. All specimens occur isolated.