Pg. 202 (fig. 85) [preprint 1941]. Shown on correlation chart as lying within Pico and Repetto formations in Ventura basin. Age is early Pliocene.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1250-1251).

Pg. 51 (table 1), 54, (fig. 2), 55. Elsmere member of Repetto formation. Consists of coarse marine sandstone, conglomerate, siltstone, and mudstone. The Elsmere dips off crystalline basement rocks on which it lies unconformably; overlaps on Modelo and Mint Canyon formation; underlies siltstone member of Repetto and may be in part contemporaneous with it. Maximum thickness about 100 feet. Type locality designated. Age is early Pliocene.
Type locality: Elsmere Canyon, Los Angeles Co., southern CA. Occurs to north and east around western border of San Gabriel Mountains.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1250-1251).

Pg. 22 (fig. 2), 75, 77, pl. 1. Elsmere member of Repetto formation. Member reaches its maximum thickness of 1,400 feet, from its contact on pre-Tertiary crystalline rocks to overlying base of Pico formation, in upper Elsmere Canyon. Thins rapidly northward and is overlapped by Pico before reaching Whitney Canyon. Southeastward becomes folded and faulted in complexities of Santa Susana fault zone and is overlapped by Pacoima formation near Olive View. Unconformably overlies Domengine sandstone. Present only south of San Gabriel fault. "Towsley formation" (Winterer and Durham) includes "Elsmere member." Age is early Pliocene.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1250-1251).