References

BERGGREN, W.C., 1972. — A Cenozoic time-scale. Some implications for regional geology and paleobiogeography. Lethaia, 5: 195-215. https://doi.org/10.1111/j.1502-3931.1972.tb00852.x

CANTWELL, R.J., 1969. — Fossil Sigmodon from the Tusker locality, 111 Ranch, Arizona. Journal of Mammalogy, 50 (2): 375-378. https://doi.org/10.2307/1378369

CARLETON, M.D. & ESHELMAN, R.E., 1979. — A synopsis of fossil grasshopper mice, genus Onychomys, and their relationships to recent species. University of Michigan, Papers on Paleontology, 21: 1-63.

GALUSHA, T., JOHNSON, N.M., LINDSAY, E.H., OPDYKE, N.D. & TEDFORD, R.H., 1984. — Biostratigraphy and magnetostratigraphy, late Pliocene rocks, 111 Ranch, Arizona. Bulletin of the Geological Society of America, 95 (6): 714-722. https://doi.org/10.1130/0016-7606(1984)95<714:BAMLPR>2.0.CO;2

GAZIN, C.L., 1942. — The late Cenozoic vertebrate faunas from the San Pedro Valley, Arizona. Proceedings, U.S. Natural Museum, 92: 475-518. https://doi.org/10.5479/si.00963801.92-3155.475

GIDLEY, J.W., 1922. — Preliminary report on fossil vertebrates of the San Pedro Valley, Arizona, with descriptions of new species of Rodentia and Lagomorpha. U.S. Geol. Survey Prof. Papers, 131-E: 119-131. https://doi.org/10.3133/pp131E

GIDLEY, J.W., 1926. — Fossil Proboscidea and Edentata of the San Pedro Valley, Arizona. U.S. Geol. Survey, Prof. Papers, 140-B: 83-94. https://doi.org/10.3133/pp140B

GRAY, R.S., 1965. — Late Cenozoic sediments of the San Pedro Valley, near St. David, Arizona. Ph.D dissertation, University of Arizona, Tucson.

GRAY, R.S., 1967. — Petrography of the upper Cenozoic non-marine sediments in the San Pedro Valley, Arizona. Journal of Sedimentary Petrology, 37 (3): 774-789. https://doi.org/10.1306/74D71799-2B21-11D7-8648000102C1865D

HARRISON, J.A., 1978. — Mammals of the Wolf Ranch local fauna, Pliocene of the San Pedro Valley, Arizona. Occasional Papers, University of Kansas, Museum of Natural History, 73: 1-18.

HAYNES, C.V., 1987. — Curry Draw, Cochise County, Arizona: a late Quaternary stratigraphic record of Pleistocene extinction and paleoIndian activities. Geological Society of America, Centennial Field Guide- Cordilleran Section: 23-28. https://doi.org/10.1130/0-8137-5401-1.23

HIBBARD, C.W., 1949. — Technique of collecting microvertebrate fossils. University of Michigan, Paleontological Museum Contributions, 8 (2): 7-19.

IZETT, G.A., 1981. — Volcanic ash beds: recorders of Upper Cenozoic silicic pyroclastic volcanism in western United States. Journal of Geophysical Research, 11: 10, 200-210, 222. https://doi.org/10.1029/JB086iB11p10200

JACOBS, L.L., 1977. — Rodents of the Hemphillian age Redington local fauna, San Pedro Valley, Arizona. Journal of Paleontology, 51 (3): 505-519.

JOHNSON, N.M., OPDYKE, N.D. & LINDSAY, E.H., 1975. — Magnetic polarity stratigraphy of Pliocene-Pleistocene terrestrial deposits and vertebrate fauna, San Pedro Valley, Arizona. Bull. Geol. Soc. of America, 86: 5-11. https://doi.org/10.1130/0016-7606(1975)86<5:MPSOPT>2.0.CO;2

LAMMERS, G.E., 1970. — The late Cenozoic Benson and Curtis Ranch faunas from the San Pedro Valley, Cochise County, Arizona. Ph.D. dissertation, University of Arizona.

LINDSAY, E.H., 1972. — Small mammal fossils from the Barstow Formation, California. University of California, Publications on Geological Sciences, 93: 1-104.

LINDSAY, E.H., 1984. — Fossils of the San Pedro Valley. Field Notes from Earth Science and Mineral Research in Arizona, 14 (4): 1-9.

LINDSAY, E.H., 1988. — Cricetid rodents from Siwalik deposits near Chinji Village. Part 1. Megacricetodontinae, Myocricetodontinae and Dendromurinae. Palaeovertebrata, 8 (2): 95-154. https://doi.org/10.18563/pv.18.2.95-154

LINDSAY, E.H. & TESSMAN, T., 1974. — Cenozoic vertebrate localities and faunas in Arizona. Journal of the Arizona Academy of Sciences, 9 (1): 3-24. https://doi.org/10.2307/40021932

LINDSAY, E.H., JOHNSON, N.M. & OPDYKE, N.D., 1975. — Preliminary correlation of North America land mammal ages and geomagnetic chronology. University of Michigan, Papers on Paleontology: Studies on Cenozoic Paleontology and Stratigraphy in honour of C.W. Hibbard, 12: 11-119.

LINDSAY, E.H. & JACOBS, L.L., 1985. — Pliocene small mammal fossils from Chihuahua, Mexico. Paleontologia Mexicana, 51: 1-55. https://doi.org/10.22201/igl.05437652e.1985.0.51.334

LINDSAY, E.H., SMITH, G.A., HAYNES, C.V. & OPDYKE, N.D., 1990. — Sediments, geomorphology, magnetostratigraphy, and vertebrate paleontology in the San Pedro Valley, Arizona. Journal of Geology, 98: 605-619. https://doi.org/10.1086/629427

MARTIN, R.A., 1979. — Fossil history of the rodent genus Sigmodon. Evolutionary Monographs, 2: 1-36.

MARTIN, R.A., 1986. — Energy, ecology, and cotton rat evolution. Paleobiology, 12 (4): 370-382. https://doi.org/10.1017/S0094837300003110

MARTIN, R.A. & PRINCE, R.H., 1989. — A new species of early Pleistocene cotton rat from the Anza-Borrego Desert of Southern California. Bulletin of Southern California Academy of Science, 88 (2): 80-87.

NELSON, R.S. & SEMKEN, H.A., Jr., 1970. — Paleoecological and stratigraphic significance of the muskrat in Pleistocene deposits. Bull. Geol. Soc. of America, 81: 3733-3737. https://doi.org/10.1130/0016-7606(1970)81[3733:PASSOT]2.0.CO;2

OPDYKE, N.D., 1972. — Paleomagnetism of deep-sea cores. Reviews of Geophysics, 10: 213-250. https://doi.org/10.1029/RG010i001p00213

REPENNING, C.A. & GRADY, F., 1988. — The Microtine rodents of the Cheetah Room fauna, Hamilton Cave, West Virginia, and the spontaneous origin of Synaptomys. United States Geological Survey Bulletin, 1853: 1-32.

TOMIDA, Y., 1987. — Small mammal fossils and correlation of continental deposits, Safford and Duncan Basins, Arizona, USA. National Science Museum, Tokyo: 1-141.

VAN DER MEULEN, A.J., 1973. — Middle Pleistocene Smaller Mammals from the Monte Peglia (Orvieto, Italy), with Special Reference to the Phylogeny of Microtus (Arvicolidae, Rodentia). Quaternaria, 17: 1-144.