AKT. 28 SKULL OF ZAEHACHIS FLAGELLATOR KELLOGG 17 



MEASUREMENTS FOR THE SKULL (in millimeters) 



Breadth of rostrum at base (between antorbital notches) 163 



Greatest breadth of skull across supraorbital processes 260 



Greatest breadth of skull across zygomatic processes of squamosals 260 



Vertical height of skull (between tips of falcate processes of basioccipital 



and f rontals on vertex of skull) 165. 5 



Vertical height of skull (basisphenoid to f rontals on vertex of skull 128 



Greatest depth of rostrum at level of antorbital notches 89 



Greatest distance between outside margins of premaxillae at level of an- 

 terior margin of porous pluglike presphenoid 93 



Greatest distance between outside margins of premaxillae at level of an- 

 terior margin of nasals 130 



Greatest breadth of right premaxilla in front of nasal passages 44 



Length of frontal plate of right maxilla (antorbital notch to supraocci- 



pital) 141. 5 



Greatest breadth of exposed surface of frontal plate of right maxilla behind 



supraorbital process 66 



Least distance across vertex of skull between inner margins of maxillae.- 39 

 Greatest antero-posterior diameter of supraorbital process of right frontal. 96 



Greatest dorso-veutral depth of supraorbital process of right frontal 63. 5 



Greatest thickness of "upended" portion of supraorbital process of right 



frontal 40 



Least breadth of braincase between temporal fossae 120 



Least distance between temporal fossae as measured between lambdoid 



crests 141.5 



Distance from center of transverse crest of supraoccipital to upper margin 



of foramen magnum 104. 5 



Greatest breadth of supraoccipital 151 



Breadth of foramen magnum 42. 5 



Greatest distance between outside margins of occipital condj-les 105 



Greatest dorso-ventral diameter of right condyle 53 



Greatest transverse diameter of right condyle 42 



Greatest distance across skull between outside margins of exoccipitals.. 212 



Depth of left exoccipital at extremity 72. 5 



Distance from anterior margin of foramen magnum to right nasal passage. 122 

 Distance from horizontal plate of right maxilla to extremity of right 



paroccipital process 127 + 



Greatest antero-posterior diameter of zygomatic process of right squa- 

 mosal 101 



Distance between anterior margin of apophysis of right maxilla and 



posterior face of right condyle 215 



Greatest breadth of basioccipital across tips of the falcate processes 101 



Distance between anterior margin of foramen magnum and anterior mar- 

 gin of basisphenoid 86 



Greatest length of right nasal 14 



Greatest breadth of right nasal 26 



Greatest length of exposed portion of right frontal on vertex of skull 34 



Greatest breadth of exposed portion of right frontal on vertex of skull 28 



