CAMBRIAN PERIOD Representatives of the marine fauna: 1 - jellyfish; 2 - sponges; 3–5, trilobites (3– Trilobita, 4– Paradoxi-, des, 5– Lusatiops); 6 - chiolnt Hyolithes; 7 - lockless brachiopods (Inarticulate);

CAMBRIAN PERIOD Representatives of the marine fauna: 1 - jellyfish; 2 - sponges; 3–5, trilobites (3– Trilobita, 4– Paradoxi-, des, 5– Lusatiops); 6 - chiolnt Hyolithes; 7 - lockless brachiopods (Inarticulate);