The cladid crinoid Barycrinus from the Burlington Limestone (early Osagean) and the phylogenetics of Mississippian botryocrinids

From: Journal of Paleontology | Date: January 1, 2002| Author: | Copyright information

ABSTRACT-All species of Barycrinus from the early Osagean Burlington Limestone of the United States midcontinent are reviewed. Burlington Barycrinus species include: B. rhombiferus (Owen and Shumard, 1852); B. magister (Hall, 1858); B. spurius (Hall, 1858); B. crassibrachiatus (Hall, 1860); B. sc itulus (Meek and Worthen, 1860) n. combination: and B. sanpsoni Miller and Gurley, 1896. Cyathocrinus lotus Hall. 1861a. is here considered a junior synonym of B. rhonibiferus. The stratigraphic practice of dividing the Burlington into upper and lower parts, for purposes of reporting species ranges, ...

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