Groves, John R. Suborder Lagenina and other smaller foraminifers from uppermost Pennsylvanian-lower Permian rocks of Kansas and Oklahoma - New York Micropaleontology Press Winter 2000 - pp. 285-326 ilus., láms. ISSN: 0026-2803 Subjects--Topical Terms: FORAMINIFERALAGENINAPENNSYLVANIANOPERMICO Subjects--Geographic Terms: ESTADOS UNIDOSKANSASOKLAHOMA