Lower portion of Onondaga limestone in region around Hagersville, Ontario, is usually arenaceous and very cherty --in some places an arenaceous chert and in others a true sandstone, as at Springvale, where lower part of Onondaga assumes such marked resemblance to true Oriskany that it has often been confused with it. But fauna is in every case Onondaga. Because of decided lithologic difference from ordinary appearance of formation to which they belong, the beds are here referred to as Springvale sandstone. Consists of 5.5 to 8 feet of coarse white to yellowish sandstone, lower part rather massive, upper layers somewhat irregular and seem to contain more fossils. Material doubtless reworked Oriskany sandstone. Rests unconformably on Oriskany sandstone or on eroded Silurian surface. Age is Middle Devonian.

Source: US geologic names lexicon (USGS Bull. 896, p. 2047).