| Order Monobathrida Moore & Laudon, 1943 |
| Family Platycrinitidae Austin & Austin, 1842 |
| Platycrinitidae Indeterminate |
| Figs. 4H and 4I |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.