Richards, H. G., 1947. Invertebrate Fossils from Deep Wells Along the Atlantic Coastal Plain. Journal of Paleontology, 21 (1 ).
New Species-Group Names:
- parkeri Richards & Harbison, 1947. p. 32. pl. 11. f. 1-4.
Richards, H. G., 1947. Invertebrate Fossils from Deep Wells Along the Atlantic Coastal Plain. Journal of Paleontology, 21 (1 ).