Prairie grass phytolith hardness and the evolution of ungulate hypsodonty

American National Standards Institute, Grinding Wheel Institute, Coated Abrasives Manufacturers' Institute. 1984. American national standard for grading for certain abrasive grain on coated abrasive material. New York, NY: American National Standards Institute.

10.1063/1.1721448

10.1098/rspa.1956.0144

10.1038/1841583b0

10.1139/b69-120

ChandlerH. 1999. Hardness testing. 2nd ed. Materials Park, OH: ASM International.

10.1073/pnas.87.20.8120

10.1002/ajpa.1330550307

10.1016/j.jhevol.2006.07.001

10.1016/S0003-9969(03)00037-2

10.1111/j.1469-185X.2011.00176.x

10.1126/science.1224495

10.1007/978-1-4419-9872-9

10.1002/1096-8644(200102)114:2<124::AID-AJPA1012>3.0.CO;2-S

Hayward DM, 1973, Ann Bot, 37, 579, 10.1093/oxfordjournals.aob.a084723

Herrera CM. 1985. Grass/grazer radiations: an interpretation of silica-body diversity. Oikos. 45(3):446–447.

10.1201/9781420009538.ch17

10.1098/rspb.2010.1939

10.1007/BF01347875

10.1002/ajpa.1330610104

10.1016/0043-1648(74)90102-1

10.1002/(SICI)1096-8644(199609)101:1<101::AID-AJPA7>3.0.CO;2-Y

10.1006/jasc.1994.1005

10.1017/S0952836902000080

Lucas PW, 2013, J R Soc Interface [Internet]. [Cited 2013 Jan 9], 10

10.1159/000156829

10.1016/0169-5347(94)90313-1

MartinPS, KleinRG. 1989. Quaternary extinctions: a prehistoric revolution. 2nd ed. Tucson, AZ: University of Arizona Press.

10.1111/j.1365-2656.2006.01082.x

10.1007/s00442-007-0703-5

10.1098/rspb.2006.3586

10.1016/j.baae.2009.04.004

10.1098/rsbl.2008.0106

10.1073/pnas.80.3.790

10.2307/1940401

10.1016/j.jhevol.2007.04.008

10.1111/j.1834-7819.1960.tb01939.x

PipernoDR. 1988. Phytolith analysis: an archaeological and geological perspective. London: Academic Press.

PipernoDR. 2006. Phytoliths: a comprehensive guide for archaeologists and paleoecologists. Lanham, MD: AltaMira Press.

10.1371/journal.pone.0028379

Richardson RCD, 1968, Natl Int Agric Eng, 11, 245

10.2307/3624869

RomerAS. 1966. Vertebrate paleontology. Chicago, IL: University of Chicago Press.

10.1016/j.jas.2006.06.009

10.1023/B:TRIL.0000032438.56992.be

ScottWB. 1913. A history of land mammals in the Western Hemisphere. New York, NY: Macmillan.

SimpsonGG. 1951. Horses: the story of the horse family in the modern world and through sixty million years of evolution. Oxford: Oxford University Press.

SimpsonGG. 1953. The major features of evolution. New York, NY: Columbia University Press.

10.1111/j.1469-7998.1993.tb02646.x

Solounias N, 1988, Paleobiology, 14, 287, 10.1017/S009483730001201X

10.2307/2398811

10.2307/2405401

StirtonRA. 1959. Time, life, and man. New York, NY: Wiley.

10.1666/0094-8373(2006)32[236:EOHIET]2.0.CO;2

10.1126/science.684415

WildingLP, SmeckNE, DreesLR. 1977. Silica in soils: quartz, cristobalite, tridymite and opal. In: DixonJB, WeedSB, DinauerRC, editors. Minerals in soil environments. Madison, WI: Soil Science Society of America. p. 471–552.

10.1016/j.triboint.2005.03.007

WilliamsSR. 1942. Hardness and hardness measurements. Cleveland, OH: American Society for Metals.

10.1002/jemt.22004