The ostracode species Theriosynoecum wyomingense (Branson, 1935) appears to be restricted to the Salt Wash Member of the Morrison Formation in the Colorado Plateau area and to equivalents of the Salt Wash Member in lithologically undifferentiated sedimentary rocks in Wyoming, South Dakota, and Montana. Associated charophytes tend to support this hypothesis.

Four new genera and six new species are described from the top of the Episkopi Formation (Dorashamian) on the island of Hydra, Greece: Cypridinelliforma rex (new species), Nodophilomedes phoenix (new genus, new species), Swainella bex (new genus, new species), Triadocypris pax (new species), Siveterella pax (new genus, new species), Siveterella flex (new species), and Sylvesterella (new genus), based on specimens in the collection from Greece. Supplementary descriptions are presented of Philomedes rankiniana (Jones and Kirkby, 1867) and Eocypridina radiata (Jones and Kirkby, 1874).A basic classification proposed for Paleozoic and Mesozoic Myodocopida includes a new suborder, three new superfamilies, and three new families.