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TABLE 1. Measurements of the cheek teeth of the holotype of Gordodon kraineri, NMMNH P-70796.

Cheek Tooth Length
(crown height)
(mm)
Width
(anteroposterior)
(mm)
2 3.5 1.8
3 3.4 2.2
4 3.7 2.0
5 3.4 1.7
6 3.3 1.9
7 3.7 2.0
8 incomplete incomplete
9, ~10, ~11 missing (saw cut)  
~12 incomplete incomplete
~13 2.1 1.4
~14 2.1 1.4
~15 1.5 1.5
~16 missing 1.4
~17 1.5 1.4
~18 1.3 1.5

 

 

TABLE 2. Vertebral metrics of the holotype of Gordodon kraineri, NMMNH P-70796, in mm. LC = maximum length of the centrum, post HC = posterior height of the centrum, Post H = height from lower edge of posterior centrum to top of postzygapophyses, LIC = length of the intercentrum, NS length = length of the neural spine measured from pedicle base to tip along its curve.

Zone Vertebra  number LC Post HC Post H LIC NS length LIC/LC% Post HC/LC
cervical 2 27.9 15.1 26.3 6.7 15.5 24.01 0.54
cervical 3 29.6 17.8 28.9   75   0.60
cervical 4 29.4 19 28.2 6.5 116 22.11 0.65
cervical 5 28.3 19.5 29.7 6.1 134 21.55 0.69
dorsal 6 28.2   31.9 5.9 183 20.92  
dorsal 7 28.2 15.2 31.9   217   0.54
dorsal 8 27.1     5.3 244 19.56  
dorsal 9 27.5 15.7 27.9 4.5 271 16.36 0.57
dorsal 10 27.4 15.4   4.1 298 14.96  
dorsal 11 26.8       314    
dorsal 12         348    
dorsal 13              
dorsal 14         410    

 

 

TABLE 3. Calculated mass of some edaphosaurids. Gordodon, this study; all others Romer and Price (1940, table 5).

Taxon Mass
(kg)
Gordodon kraineri 34
Edaphosaurus novomexicanus 63
E. boanerges 83
E. cruciger 166
E. pogonias 186

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