Home

Article Search

TABLE 1. Upper molar metrics (mm) for apatemyids (Apatemys and Sinclairella) from Sioux County, Nebraska. Sources: 1, this study; 2, Clemens (1964); and 3, Ostrander (1987). Abbreviations: L, maximum anterior-posterior length; W, maximum transverse width.

Specimen number Locality Species Tooth L W Source
UMPC 13937 Sand Creek S. dakotensis M1 4.1 3.69 1
UMPC 14860 Whitehead Creek S. dakotensis M1 3.68 3.43 1
RAM 381 “anthills” sec. 26 S. dakotensis M1 4.1 3.5 2
UMPC 14862 Sand Creek S. dakotensis M2 3.73 4.63 1
RAM 1674 “anthills” sec. 26 S. dakotensis M2 3.4 4.2 2
UMPC 14190 Whitehead Creek Apatemys sp. M2 2.8 3.3 1
UMPC 14863 Sand Creek S. dakotensis M3 3.51 4.89 1
UMPC 14864 Sand Creek S. dakotensis M3 2.74a 3.4a 1
UMPC 14191 Whitehead Creek Apatemys sp. M3 1.8 2.8 1

aApproximate measurement based on damaged specimen.

 

TABLE 2. Lower molar metrics (mm) for apatemyids (Apatemys and Sinclairella) from Sioux County, Nebraska. Sources: 1, this study; 2, Clemens (1964); 3, Ostrander (1987). Abbreviations: L, maximum anterior-posterior length; Tri W, maximum transverse width across the trigonid; Tal W, maximum transverse width across the talonid.

Specimen number Locality Species Tooth L Tri W Tal W Source
UMPC 14861 Orella Road S. dakotensis m1 3.48 1.88 2.24 1
UMPC 13938 Sand Creek S. dakotensis m1 3.44 1.79 2.07 1
UMPC 14270 Whitehead Creek S. dakotensis m1 3.45 1.57 2.08 1
RAM 1000 “anthills” sec. 26 S. dakotensis m1 3.5 * 2.2 2
SDSM 10241-a Raben Ranch S. dakotensis m1 3.51 2.01 2.4 3
SDSM 10241-b Raben Ranch S. dakotensis m1 3.61 1.96 2.36 3
SDSM 10242 Raben Ranch Apatemys sp. m1 2.62 1.54 1.72 3
UMPC 13601 Sand Creek S. dakotensis m2 3.26a 1.84a 1.98a 1
UMPC 13869 Sand Creek S. dakotensis m2 3.5 2.74 2.59 1
UMPC 14866 Whitehead Creek S. dakotensis m2 3.65 2.42 2.36 1
UMPC 14865 Whitehead Creek S. dakotensis m2 * 2.3 * 1
RAM 598 “anthills” sec. 26 S. dakotensis m2 3.8 * 2.6 2
RAM 1001 “anthills” sec. 26 S. dakotensis m2 3.6 * 2.6 2
RAM 1079 “anthills” sec. 26 S. dakotensis m2 4 * 2.8 2
RAM 3013 “anthills” sec. 26 S. dakotensis m2 3.6 * 2.8 2
SDSM 10243 Raben Ranch S. dakotensis m2 4.07 * 3.05 3
SDSM 10245 Raben Ranch S. dakotensis m3 6.16 2.82 2.62 3

*Measurement not available. Clemens (1964) provided only length and maximum width. aApproximate measurement based on damaged specimen.

 

logo smallPalaeontologia Electronica
Webmaster
1998–2020
23 years of electronic palaeontology

PE is archived by CLOCKSS and LOCKSS programs.