Measurement

N. micrus (C145)

N. major (C181)

N. major (C133)

N. micrus (C436)


Natural Endocasts Digital Endocasts

Cranium length (mm) from specimen

> 27.5

> 31.0

32.1

28

Cranium length min. (mm)¹

26.9

30.3

30.3

26.9

Cranium length max. (mm)¹

29.1

32.5

32.5

29.1

Estimated body mass (g)*

97.37

110.2

114.3

99.21

Estimated body length (mm)

≈ 110135

≈ 120140

≈120140

≈ 110135

y=Log10 value* (Body mass units)

1.99

2.04

2.05

2

x=Log10 value* (Cranial length)

1.44

1.49

1.51

1.45

Estimated endocast volume (ml)

> 0.76

1.09

0.888

1.231

Calculated endocast volume (ml) (from formula)

0.844

0.997

1.043

0.856

Endocast total length (mm)

> 14.48

> 15.18

15.2

14

Endocast total width (mm)

9.86

9.65

9.4

9.7

Olfactory bulb length (mm)

3.65  3.69

R 3.60

L 3.0  R 3.1

incomplete

Olfactory bulb width (mm)

7 (both)

R 3.86

6.4 (both)

incomplete

Cerebellum length (mm)

5.97

4.58  5.22

6.2

5.9

Cerebellum width (mm)

7.45  8.4

7.32

7.7

7.4

BrainCranium length ratio

52.6

49

47.3

50

Encephalization Quotient (EQ)²

0.33

0.35

0.36

0.33

Encephalization Quotient (EQ)³

0.52

0.56

0.57

0.52
