BIBLIOGRAPHY AND NOTES 675 



No. Date. 



Baculites sp., a large form resembling BacuUtes ovatus or 

 Baciditcs compressus; Area sp. ?; TurriteUa sp. ? 



76. 1900. Fleming, John W. : Report of the mine inspector for the Tertiary 



of New Mexico. 



Report of the Governor of New Mexico to the Secretary of 

 the Interior. Washington, 1900, pp. 279-314. 



The mines of the Cerrillos coal field are described and those 

 of Monero are mentioned. 



77. 1900. Herrick, C L., and Johnson, I). W. : The geology of the Albu- 



querque sheet (New Mexico). 



Denison Univ. Sci. Lab., Bull., vol. xi, art. ix, pp. 175-239, pis. 

 xxvii-lviii. 1900. 



Hadley Lab. Univ. of New Mexico, Bull., vol. ii, pt. i, 1900, 

 pp. 1-67, 32 pis., colored geologic map in pocket. 1900. 



(Pp. 187-188) A Gastropod zone is described as occurring 

 about 40 feet above the Dakota sandstone, followed upward by 

 the Tres Hermanos sandstone and a Concretion zone, which 

 "abounds in large ammonites shells and large species of Pinna 

 and Baculites.'' This zone was recognized, according to these 

 writers, near Cabezon, about 20 miles to the northwest and 

 near Una del Gato (Hagan field), about 30 miles to the east. 

 These three zones are close together, and from them, in the Rio 

 Puerco, Hagan, and Tijeras fields, the following fossils were 

 collected: [It is not always possible to determine from the de- 

 scriptions when the authors refer to the Concretion zone and 

 when to the Cephalopod zone. Hence it is possible that some of 

 the following species may have come from the Cephalopod 

 zone.] Ostrea translucida M. «& H. ; Exogyra Iceviscula Roemer ; 

 Exogyra columhella Meek; Mactra {'i) suhquadrata H. & J.; 

 Tapes cy rimer if ormis Stanton ; Caryates vet a Whitfield ; Pliola- 

 domya suhventricosa M. & H. ; Liopistha concentrica Stanton ; 

 Camptonectes symmetricns H. & J. ; Dosinia sp. ; Chemnitzia 

 sp. ; Sigaretus textiUs Stanton ; Baculites gracilis Shumard ? ; 

 Prionotropis icoolgarl Mantell ; a thick shale (the principal 

 part of the Mancos) occurs above the Concretion zone, but its 

 thickness is not given. Apparently the space occupied by it is 

 represented by the hiatus in the section east of Prieta Mesa, 

 given in plate 22. (Johnson has stated personally to the present 

 writer that the shale between the ''Concretion zone'" and the 

 ''Cephalopod zone'" was roughly estimated at 1,000 feet.) A 

 Cephalopod zone occurs about 100 feet from the top of this 

 shale (the present writer found this zone to be about 300 feet 

 from the top), and above it occurs the Punta de la Mesa sand- 

 stone — the basal member of the yellow sandstones described as 

 the "Prieta Series." These sandstones, together with the Cepha- 

 lopod zone, are referred to the Fox Hills. [The sandstones are 

 now referred to the Mesaverde and the Cephalopod zone to the 

 Benton.] From them the following fossils were identified: 

 Ostrea higul)ris Conrad; Ostrea sannionensis White; Gryplura 



