. Bulletin. Natural history; Natuurlijke historie. 20 FUSULINIDAE OF HUECO MOUNTAINS, TEXAS. Figure 9. Age and regional correlation of the Abo formation between Sacramento and Hueco Mountains. group north of the New Mexico-Texas State line. Work on the fusulinid faunas of this area would seem to be a promising subject for a future investigation. Otte (1959, p. 68-69) correlates the Powwow member with the uppermost 200 feet of the Laborcita formation of the northern Saaamento Mountains on the basis of: (1) the presence of Schwagerina cf. S. huecoensis in a limestone that forms the top of the La
. Bulletin. Natural history; Natuurlijke historie. 20 FUSULINIDAE OF HUECO MOUNTAINS, TEXAS. Figure 9. Age and regional correlation of the Abo formation between Sacramento and Hueco Mountains. group north of the New Mexico-Texas State line. Work on the fusulinid faunas of this area would seem to be a promising subject for a future investigation. Otte (1959, p. 68-69) correlates the Powwow member with the uppermost 200 feet of the Laborcita formation of the northern Saaamento Mountains on the basis of: (1) the presence of Schwagerina cf. S. huecoensis in a limestone that forms the top of the Laborcita formation; (2) the presence of 5. huecoensis in that portion of the lower division of the Hueco limestone [Hueco Canyon formation] immediately overlying the Powwow conglomerate. It should be noted however that 5. huecoensis occurs not only in that portion of the Hueco Canyon forma- tion directly atop the Powwow member, but also within the Powwow; in fact, S. huecoensis was originally described from the Powwow. Since 5. huecoensis first appears at the top of the Laborcita fomiation, the Powwow is probably younger than that portion of the Laborcita below the limestone unit bearing the S. huecoensis fauna. CERRO ALTO LIMESTONE Name and type section. The Cerro Alto limestone is named for the excellent exposures in the upper reaches of Hueco Canyon, south-southwest of Cerro Alto in the central part of the Hueco Mountains, Texas. The type stratigTaphic section, exposed in the south walls of Hueco Canyon, is described below and is illustrated graphically in measured section 7 of fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Peabody Museum of Natural History. New Haven : The Museum
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