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. 2017 Dec 2;17:236. doi: 10.1186/s12862-017-1076-y

Table 2.

Skeletal proportions in Archaeopteryx and Anchiornis

mcIII/
mcI
mpI-1/
mcI
mpI-1/
mcIII
muI/
mcI
muIII/
mcIII
tibia/
mt
London 1.83
Berlin 2.99 2.47 0.83 1.16 0.29 1.85
Eichstätt 3.00 2.84 0.95 1.25 0.32 1.74
Solnhofen 1.94
München 3.26 2.78 0.85 1.28 0.29 1.83
Thermopolis 3.33 2.95 0.89 1.88
11th 3.18 2.35 0.74 1.17 0.32 1.89
Anchiornis 2.46 2.11 0.86 1.22 0.45 1.93
Haarlem 2.21 2.20 1.00 0.90 0.36 1.67
t-value 13.603 4.195 4.287 10.354 6.916 7.716
p-value <0.001 <0.020 <0.020 <0.002 <0.01 <0.001
z-value 6.083 1.876 1.917 5.179 3.458 2.916
p-value <0.001 0.038 0.024 <0.001 <0.001 0.001

Ratio of skeletal elements in the Haarlem and other Archaeopteryx specimens (which can be diagnosed) and statistical differences (t-test and z-test) between the Haarlem specimen and Archaeopteryx. Abbreviations: mp, manual phalange; mc, metacarpal; mt, metatarsus; mu, manual ungual