BURGESS SHALE (MIDDLE CAMBRIAN) FAUNA

[21] CISNE J L, 1975, Fossils and Strata, V4, P45

[22] Clark A. H., 1912, Zoologischer Anzeiger Leipzig, V39

[23] Cambrian holothurians [J]. AMERICAN NATURALIST, 1913, 47 : 488 - 507

[24] Fossil holothurians [J]. SCIENCE, 1912, 35 (01) : 274 - 278

[25] Cleaves AB, 1935, BULL GEOL SOC AM, V46, P463

[26] CLOUD P, 1976, Paleobiology, V2, P351

[27] Conway Morris S., 1977, SPECIAL PAPERS PALAE, V20, P1

[28] Conway Morris S., 1977, PALAEONTOLOGY, V20, P623

[29] CONWAYMORRIS S, 1978, J PALEONTOL, V52, P126

[30] CONWAYMORRIS S, 1976, NEUES JB GEOL PAL, V12, P705

[21] CISNE J L, 1975, Fossils and Strata, V4, P45

[22] Clark A. H., 1912, Zoologischer Anzeiger Leipzig, V39

[23] Cambrian holothurians [J]. AMERICAN NATURALIST, 1913, 47 : 488 - 507

[24] Fossil holothurians [J]. SCIENCE, 1912, 35 (01) : 274 - 278

[25] Cleaves AB, 1935, BULL GEOL SOC AM, V46, P463

[26] CLOUD P, 1976, Paleobiology, V2, P351

[27] Conway Morris S., 1977, SPECIAL PAPERS PALAE, V20, P1

[28] Conway Morris S., 1977, PALAEONTOLOGY, V20, P623

[29] CONWAYMORRIS S, 1978, J PALEONTOL, V52, P126

[30] CONWAYMORRIS S, 1976, NEUES JB GEOL PAL, V12, P705