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Table 1 Measurements of sauropod trackway parameters from Changhebian site, Chongqing, China

From: Wide-gauge sauropod trackways from the Early Jurassic of Sichuan, China: oldest sauropod trackways from Asia with special emphasis on a specimen showing a narrow turn

Number CHB-

ML (cm)

MW (cm)

R (°)

PL (cm)

SL (cm)

PA (°)

ML/MW

WAP/P’ML

WAM/M’MW

S1-LP1

33.0

14

62.0

106.0

112

35.5

1.1

S1-LM1

10.0

18.5

29

66.5

111.0

105

0.5

37.5

2.0

S1-RP1

35.0

26.5

−3

66.0

104.0

98

1.3

42.0

1.2

S1-RM1

8.5

18.5

65

73.0

102.0

94

0.5

42.5

2.3

S1-LP2

32.5

20.0

19

72.0

102.5

103

1.6

38.0

1.2

S1-LM2

10.0

17.5

18

66.5

100.0

104

0.6

33.8

1.9

S1-RP2

30.0

23.0

−11

58.5

100.0

103

1.3

40.0

1.3

S1-RM2

9.5

19.0

10

60.0

102.0

101

0.5

36.0

1.9

S1-LP3

31.0

25.0

30

69.0

98.0

92

1.2

41.5

1.3

S1-LM3

8.5

23.5

4

72.0

98.0

86

0.4

46.0

2.0

S1-RP3

28.5

21.0

23

67.0

81.0

83

1.4

42.0

1.5

S1-RM3

10.5

21.5

45

72.0

101.0

89

0.5

46.0

2.1

S1-LP4

34.5

28.5

33

55.0

100.0

106

1.2

43.5

1.3

S1-LM4

8.0

19.0

68

72.0

99.5

99

0.4

36.0

1.9

S1-RP4

37.0

28.0

20

70.0

97.0

96

1.3

50.0

1.4

S1-RM4

10.0

22.0

15

58.5

93.0

90

0.5

40.0

1.8

S1-LP5

34.5

24.5

62

60.0

101.0

106

1.4

43.5

1.3

S1-LM5

13.0

21.0

72.0

0.6

S1-RP5

34.0

21.0

42

66.0

114.0

119

1.6

40.5

1.2

S1-RM5

10.0

20.0

0.5

S1-LP6

31.0

23.5

46

66.5

100.0

108

1.3

43.5

1.4

S1-LM6

S1-RP6

36.5

23.5

36

57.0

95.0

99

1.6

45.0

1.2

S1-RM6

S1-LP7

37.0

24.0

26

68.0

86.5

86

1.5

50.0

1.4

S1-LM7

10.0

20.0

24

92.0

 

0.5

S1-RP7

27.5

22.0

31

58.0

59.5

59

1.3

57.5

2.1

S1-RM7

S1-LP8

34.0

27.0

53

62.0

107.0

115

1.3

40.0

1.2

S1-LM8

14.0

23.0

124.0

0.6

S1-RP8

46.5

25.5

−9

65.0

123.0

108

1.8

44.5

1.0

S1-RM8

S1-LP9

35.0

29.5

49

86.0

108.5

94

1.2

47.0

1.3

S1-LM9

10.0

22.0

0.5

S1-RP9

43.0

26.0

60.0

1.7

S1-RM9

S1-LP10

32.0

22.0

21

109.0

1.5

S1-LM10

S1-RP10

S1-RM10

S1-LP11

25.0

20.0

41

94.0

116.0

97

1.3

50.0

2.0

S1-LM11

S1-RP11

32.5

18.5

24

58.0

95.5

86

1.8

50.0

1.5

S1-RM11

13.5

21.5

0.6

S1-LP12

32.0

28.0

25

80.0

124.0

114

1.1

44.0

1.4

S1-LM12

S1-RP12

26.5

19.5

21

68.0

104.5

105

1.4

44.0

1.7

S1-RM12

S1-LP13

32.5

28.0

33

64.0

101.0

95

1.2

46.0

1.4

S1-LM13

S1-RP13

40.0

29.0

12

73.0

109.0

96

1.4

49.0

1.2

S1-RM13

S1-LP14

37.0

31.0

22

74.0

100.0

100

1.2

38.0

1.0

S1-LM14

10.0

19.5

110.0

0.5

S1-RP14

36.5

30.0

56.0

1.2

S1-RM14

S1-LP15

37.0

28.0

1.3

S1-LM15

12.5

19.0

0.7

Mean-P

33.9

24.9

|28|

66.7

101.7

99

1.4

44.4

1.4

Mean-M

10.5

20.3

31

68.1

103.0

96

0.5

39.7

2.0

S.d.-P

4.6

3.6

17.8

9.3

13.1

12.7

0.2

5.0

0.3

S.d.-M

1.8

1.8

23.4

5.6

9.1

7.3

0.1

4.7

0.2

S2-LP1

S2-LM1

13.0

23.0

71

71.0

119.0

99

0.6

50.5

2.2

S2-RP1

40.0

27.0

23

68.0

139.0

117

1.5

49.0

1.2

S2-RM1

8.0

25.5

85.5

0.3

S2-LP2

37.0

24.0

26

94.0

140.0

113

1.5

50.0

1.4

S2-LM2

11.0

30.0

64

119.0

0.4

S2-RP2

36.5

27.5

12

73.0

137.0

113

1.3

46.0

1.3

S2-RM2

S2-LP3

34.0

24.5

10

91.0

131.0

99

1.4

54.0

1.6

S2-LM3

11.0

20.0

26

100.0

151.0

103

0.6

61.0

3.1

S2-RP3

29.5

29.0

17

81.0

132.0

103

1.0

50.5

1.7

S2-RM3

13.0

22.5

45

93.5

140.5

102

0.6

56.0

2.5

S2-LP4

33.0

22.5

−20

88.0

124.0

103

1.5

51.0

1.5

S2-LM4

15.0

24.0

−19

87.0

120.0

89

0.6

61.5

2.6

S2-RP4

38.0

29.0

15

70.0

131.0

106

1.3

54.5

1.4

S2-RM4

23.0

27.0

45

84.5

118.0

81

0.9

68.5

2.5

S2-LP5

41.0

31.0

20

93.0

110.0

85

1.3

66.0

1.6

S2-LM5

13.0

21.5

96.0

0.6

S2-RP5

42.5

29.0

52

67.0

90.0

100

1.5

42.0

1.0

S2-RM5

10.0

22.5

34

85.5

0.4

S2-LP6

36.0

30.5

−4

50.0

60.0

54

1.2

54.0

1.5

S2-LM6

S2-RP6

30.5

33.5

37

73.5

69.0

68

0.9

42.0

1.4

S2-RM6

13.0

27.5

32

100.0

67.5

35

0.5

S2-LP7

35.0

28.5

−4

37.0

81.0

41

1.2

37.5

1.1

S2-LM7

8.5

17.5

29

46.0

62.0

16

0.5

S2-RP7

33.5

28.5

16

105.0

135.0

113

1.2

43.0

1.3

S2-RM7

15.0

23.0

20

105.0

146.0

101

0.7

30.0

1.3

S2-LP8

39.0

28.0

13

53.0

104.0

88

1.4

52.5

1.3

S2-LM8

9.5

22.5

−15

84.0

125.5

69

0.4

76.5

3.4

S2-RP8

30.5

30.5

60

91.0

126.0

106

1.0

50.0

1.6

S2-RM8

12.0

29.5

82

128.0

137.0

82

0.4

63.0

2.1

S2-LP9

37.0

27.0

22

66.0

128.0

97

1.4

55.5

1.5

S2-LM9

13.5

28.5

9

71.0

121.0

71

0.5

65.5

2.3

S2-RP9

33.5

25.0

6

102.0

150.0

116

1.3

50.0

1.5

S2-RM9

16.0

28.5

43

123.5

148.5

87

0.6

72.5

2.5

S2-LP10

44.0

27.5

12

74.0

139.0

112

1.6

54.0

1.2

S2-LM10

10.0

20.5

−47

90.0

132.0

79

0.5

76.0

3.7

S2-RP10

33.5

28.0

21

93.0

140.0

110

1.2

55.0

1.6

S2-RM10

14.5

25.5

38

114.5

145.0

90

0.6

66.0

2.6

S2-LP11

33.0

25.5

44

78.0

121.0

109

1.3

48.5

1.5

S2-LM11

11.5

22.0

40

88.0

127.5

91

0.5

60.0

2.7

S2-RP11

34.5

27.5

71.0

1.3

S2-RM11

12.0

30.0

91.0

0.4

S2-LP12

37.5

26.5

1.4

S2-LM12

10.5

21.0

0.5

Mean-P

35.9

27.7

|22|

77.1

119.4

98

1.3

50.3

1.4

Mean-M

12.5

24.4

|39|

92.1

121.5

80

0.5

62.1

2.6

S.d.-P

3.8

2.5

18.9

17.4

25.6

21.0

0.2

6.2

0.2

S.d.-M

3.2

3.6

32.8

19.3

26.6

24.6

0.1

12.2

0.6

  1. ML maximum length, MW maximum, R rotation, PL pace length, SL stride length, PA pace angulation, WAP width of the angulation pattern of the pes (calculated value), WAM width of the angulation pattern of the manus (calculated value), ML/MW, WAP/P’ML and WAM/M’MW ratios are dimensionless, S.d. Standard deviation, “| |” indicating absolute value, “–” indicating missing data