Pennsylvanian crinoids of New Mexico

Crinoids from each of the five Pennsylvanian epochs are described from 26 localities in New Mexico. The crinoid faunas occupied diverse shelf environments around many intermontane basins of New Mexico during the Pennsylvanian. The crinoids described here include 29 genera, 39 named species, and at least nine unnamed species, of which one genus and 15 named species are new. This report more than doubles the number of previously known Pennsylvanian crinoid species from New Mexico; 17 of these species also occur in midcontinent faunas. New Mexico Pennsylvanian crinoids exhibit greater species richness than Pennsylvanian faunas from the intermontane basins of Colorado, Utah, and Arizona and show some generic affinity with Great Basin Pennsyl-vanian faunas. They indicate seaway connections were open, although perhaps intermit-tently, throughout the Pennsylvanian between the intermontane basins of New Mexico and midcontinent basins in Texas and Oklahoma. New taxa introduced are: Lekobikocrinus n. gen., Aaglaocrinus bowsheri n. sp., Diphuicri-nus borgesae n. sp., Goleocrinus chronici n. sp., Metacromyocrinus cedroensis n. sp., M. szaboi n. sp., Ulocrinus manzanitaensis n. sp., Mosco-vicrinus ? rotundobasis n. sp., Endelocrinus globularus n. sp., Neoprotencrinus gutschicki n. sp., Euerisocrinus tijerasensis n. sp., Apograph-iocrinus rimosus n. sp., A. kietzkei n. sp., Metaffinocrinus noblei n. sp., Sciadiocrinus ornatus n. sp., and Paramphicrinus novamexi-canus n. sp.