4

Number of sublabials

7

Median number of postmental scales

8

Median number of loreal scale rows

90

Pineal foramen at parietal-frontal suture, or in parietal (Figure 3.1, Figure 4.2)

92

Postfrontal present, or absent (Figure 2.1)

95

Dorsal process of jugal terminates on posterior or medial aspect of postorbital, or on lateralaspect of postorbital. (Two derived states are scored on Poe's cladogram, but the primitive attribute, jugal terminates on lateral aspect of postorbital, is exhibited by SMU 74976 relative to both; Figure 2.2.)

96

Jugal-squamosal contact absent, or present (Figure 2.2)

97

Pterygoid-lacrymal contact absent, or present (Figure 2.1)

98

Jugal extends superiorly to form anterior border of lacrimal, or abuts ventral edge of lacrimal (Figure 2.2)

101

Pterygoid teeth present, or absent

103

Maxilla extends posteriorly to ectopterygoid, or beyond ectopterygoid (Figure 2.1, Figure 2.2)

106

Quadrate shelf absent, or present

107

Posteroventral process of the squamosal extendsventrally into auditory cup of quadrate, or squamosal excluded from auditory cup by dorsal surface of quadrate

108

Posterodorsal process of squamosal contacts supratemporal, or extends above supratemporal to contact parietal

110

Angular process of articular present, large, or reduced or absent (Figure 5.8)

113

Splenial present, or absent (Figure 5.4, Figure 5.8)

114

Anteromedial process of coronoid extends anteriorly, or ventral aspect of anteromedial process projects posteriorly (Figure 5.4, Figure 5.8)