caa a22 4500 388017635 CHVBK 20180307124915.0 cr unu---uuuuu 161130e199811 xx s 000 0 eng 10.1017/S0022336000027402 doi S0022336000027402 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000027402 Middle Pennsylvanian, late Atokan-early Desmoinesian echinoderms from an intermontane basin, the Central Colorado Trough [Elektronische Daten] [G. D. Webster, Karen J. Houck] Middle Pennsylvanian, Atokan and Desmoinesian, crinoids and echinoids are described from the Belden and Minturn Formations of the Central Colorado Trough. The echinoderms from the Minturn Formation were living in an active intermontane trough setting. They are found in two environments, on the flanks of phylloid algal reefs and in patches on abandoned delta lobes on the gently sloping substrate. Faunas are dominated by cromyocrinids and are similar to stable platform Terrigineous Facies Belt faunas of the Midcontinent. New species described are Dicromyocrinus beldenensis, Neoprotencrinus rockensis, and Sciadiocrinus wipsorum. Goleocrinus, and the columnal genera Blothronagma, Cyclocaudex, and Platyplateium are reported for the first time from the Minturn Formation. The columnal taxa Blothronagma cinctutum and Floricyclus angustimargo are believed to be cromyocrinids. B. cinctutum may be synonomous with Synarmocrinus molasensis, and Floricyclus angustimargo may be synonymous with Ulocrinus rockymontanus. Copyright © The Paleontological Society Webster G. D. Department of Geology, Washington State University, Pullman 99164-2812 aut Houck Karen J. Department of Geology, University of Colorado at Denver, Denver 80217-3364 aut Journal of Paleontology Cambridge University Press 72/6(1998-11), 1054-1072 0022-3360 72:6<1054 1998 72 JPA https://doi.org/10.1017/S0022336000027402 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000027402 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Webster G. D. Department of Geology, Washington State University, Pullman 99164-2812 aut NATIONALLICENCE 700 1- Houck Karen J. Department of Geology, University of Colorado at Denver, Denver 80217-3364 aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/6(1998-11), 1054-1072 0022-3360 72:6<1054 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge