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.
Luokittelu