are spherical, encircling elongate objects such as spines of productid brachiopods echinoderm fragments, and bryozoans. Those which encrust fenestrate bryozoans brachiopods, and corals are irregularly hemispherical. Internally, the corallite walls are punctuated with mural pores. Corallites may possess irregular squamulae similar to those in Acaciapora described by Moore and Jeffords, 1945, from the Morrowan of Oklahoma. North American representatives of Sutherlandia are generally collected from shaly limestones, calcareous shales associated with limestone beds, and calcarenites. Accompanying corals may include the tabulates Michelinia, Cladochonus, and Striatopora as well as the nondissepimental corals Stereostylus, Lophophyllidum, Lophamplexus, Leonardophyllum, Amplexicarinia, and Amplexizaphrentis. Only in the lower Dewey Formation in Washington County, Oklahoma does the genus occur with dissepimental corals, Caninia, Dibunophyllum, and Geyerophyllum. Cocke and Bowsher, 1968, described three Pennsylvanian species of Sutherlandia. Desmoinesian species are from Oologah, Seminole, and Wewoka Formations of Oklahoma. Missourian specimens were described from the Oklahoma Dewey Formation, from an unnamed limestone lentil in the Pleasanton of Montgomery County, Kansas and from the Stoner Limestone Member, Stanton Formation of Wilson County, Kansas. Subsequently, the author and his students have collected large numbers of the genus from the Iola Formation in northeastern Oklahoma and southeastern Kansas. A few specimens have been collected from the Oklahoma Hogshooter Formation and from the Missouri Westerville Limestone Member of the Cherryvale Formation in the metropolitan Kansas City area.