Ichnofossils
Genus

Heckerina Alekseev et Endelman, 1989

Taxon description

Alekseev & Endelman, 1989

Diagnosis: subcircular pits (diameter 1,0-2,3 mm, depth 1,2-1,4 mm) on the tests of echinoid Galerites orbicularis (dOrbigny) slightly slanting to the outer surface of sea urchin test. The diameter of the pit opening is commonly less than that of the largest middle part. The traces commensurable in the depth with the test thickness are accompanied by swellings on the inner surface. Inside the shallow pits the vtest granulation is preserved.

Classification