Riverview Limestone Member of Bond Formation named for community in Sullivan Co., southwestern IN. Unit described as medium to dark-gray, fossiliferous argillaceous limestone, 0.1 to 0.2 m thick. Overlies black shale and an unnamed coal bed and lies approximately 40 ft above the Fairbanks Coal Member. Age is Late Pennsylvanian.

Source: GNU records (USGS DDS-6; Reston GNULEX).

Riverview Limestone Member of Bond Formation is a thin, discontinuous limestone lying between unnamed shales. It consists of a thin, medium to dark gray, argillaceous, gastropod- and crinoid-rich, lime wackestone 21 to 29 cm thick. Contains phosphatic vertebrate remains, carbonaceous matter, pyrite, and limonite. Correlated with the Coffeen Limestone Member of the Bond Formation in IL by Hopkins and Simon (1975: Illinois Geological Survey Bull. 95). Riverview conodonts are dominated by representatives of STREPTOGNATHODUS ELEGANTULUS and IDIOGNATHODUS MAGNIFICUS. Collections were made from three localities: Riverview and Turman Creek in Sullivan Co., and New Harmony in Posey Co. According to paleoecologic data, energy increases only slightly from the low-energy underlying shale environment into the limestone at the type section, but the presence of ADETOGNATHUS in the southern section indicates harsher, more variable conditions. Age of the Riverview is Late Pennsylvanian, Missourian.

Source: GNU records (USGS DDS-6; Reston GNULEX).