Pg. 133-145. Eastland limestone member more commonly called by Texas geologists Caddo limestone, but as that name is preoccupied by a limestone in Kansas the name Eastland has been chosen for this Texas limestone. Is top member of Eastland formation, top formation of Canyon division, Brazos River Valley area, north-central Texas. Well exposed in creek bed 0.5 mile east of Caddo and in Caddo oil field, in Stephens County, Texas. Northeast of Finis, in northern Palo Pinto County, it cannot be traced with certainty. In southern Jack County where it is expected in the section, a calcareous sandstone and conglomerate appear, so that top of Canyon division in this area is less clearly defined. Distinguished from other Canyon limestones by its stratigraphic position above thick and massive sandstone beds and below fossiliferous shales and ferruginous sandstone of Cisco division. Age is Late Pennsylvanian.
[GNC remark (ca. 1936, US geologic names lexicon, USGS Bull. 896, p. 654): same as Home Creek limestone member, older name, and "Eastland" is preoccupied. (See 1921 entry under Home Creek limestone member.) Named from Eastland, Eastland Co., north-central TX.]

Source: US geologic names lexicon (USGS Bull. 896, p. 654); supplemental information from GNU records (USGS DDS-6; Denver GNULEX).

†Eastland limestone member abandoned. Is same as Home Creek limestone member of Caddo Creek formation, older name, and "Eastland" is preoccupied. (See 1921 entry under Home Creek limestone member.)

Source: US geologic names lexicon (USGS Bull. 896, p. 654).