| Abyssocrinus from the Haragan Formation (Devonian) of
southern Oklahoma |
Strimple, H. L. |
Oklahoma Geology Notes, v. 34, p.160-162, 1974 |
| Additional crinoid specimens from the Shellrock Formation
(Upper Devonian) of Iowa |
Strimple, H. L. and Levorson, C. O. |
Proceedings of the Iowa Academy of Science, v. 80, no. 4,
p.182-184, 1974 |
| Crinoids of the Hunton Group |
Strimple, H. L. |
Oklahoma Geological Survey Bulletin 100, p. 1-169, 12pl,
1963 |
| Echinoderm zonules in the Devonian of Iowa |
Strimple, H. L. |
Proceedings of the Iowa Academy of Science, v. 77,
p.249-256, 1970. |
| New flexible crinoids from the Upper Devonian of North
Central Iowa |
Strimple, H. L. and Levorson, C. O. |
Proceedings of the Iowa Academy of Science, v. 78, no. 1,
p.9-11, 1971. |
| New recumbent echinoderm genera from the Bois d'Arc
Formation: Lower Devonian (Lochkovian) of Coal County, Oklahoma |
Parsley, R.L. and Sumrall, C.D. |
Journal of Paleontology, Nov 2007; 81: 1486-1493. |
| Two Upper Devonian crinoids. In Fossil Crinoid Studies |
Strimple, H. L. and Levorson, C. O. |
University of Kansas Paleontological Contributions, Paper
42, no. 4, p. 17-20, figs. 3,6-7, 1969. |