BioStor
 | Revision of the crinoid family Comasteridae, with descriptions of new genera and species A H Clark (1909) Proceedings of the United States National Museum 36: 493-567 |
 | A new unstalked crinoid from Christmas Island A H Clark (1911) Annals and Magazine of Natural History 7: 644-645 |
 | The crinoids of the Museum fuer Naturkinde, Berlin A H Clark (1912) Proceedings of the United States National Museum 43: 381-410 |
 | The echinoderm fauna of South Africa H L Clark (1923) Annals of the South African Museum 13: 221-435 |