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. Author manuscript; available in PMC: 2017 Jan 14.
Published in final edited form as: Palaeontology. 2016 Jan 14;59(2):225–247. doi: 10.1111/pala.12225

Table 11.

Statistical comparison of the top twenty possible explanatory models for diversity of pterosaurs through the Mesozoic.

Model Parameters df Weights AICc AIC BIC logLik
119 LPf 5 0.161913896 4.054284125 2.854284125 8.744553276 3.572857938
97 SLPf 6 0.100306361 5.011955262 2.906692104 9.975015086 4.546653948
118 LPc 5 0.088667634 5.258623631 4.058623631 9.948892783 2.970688184
99 LPcPf 6 0.072214036 5.669144623 3.563881465 10.63220445 4.218059267
96 SLPc 6 0.051663081 6.338926642 4.233663484 11.30198647 3.883168258
78 CLPf 6 0.044769643 6.625352899 4.520089741 11.58841272 3.739955129
94 DfLPf 6 0.041389992 6.782335268 4.677072111 11.74539509 3.661463945
88 DcLPf 6 0.037942491 6.956270247 4.851007089 11.91933007 3.574496455
93 DfLPc 6 0.034870645 7.125122796 5.019859638 12.08818262 3.490070181
64 SLPcPf 7 0.033949556 7.178661915 3.845328581 12.09170539 5.077335709
87 DcLPc 6 0.024699875 7.81481714 5.709553982 12.77787696 3.145223009
77 CLPc 6 0.024044448 7.868605272 5.763342114 12.8316651 3.118328943
47 CSLPf 7 0.021915304 8.054043071 4.720709737 12.96708655 4.639645131
61 DfSLPf 7 0.020836498 8.155001204 4.82166787 13.06804468 4.589166065
57 DcSLPf 7 0.020757362 8.162611565 4.829278232 13.07565504 4.585360884
60 DfSLPc 7 0.016659272 8.602479664 5.269146331 13.51552314 4.365426834
49 CLPcPf 7 0.015331366 8.76861193 5.435278597 13.68165541 4.282360701
63 DfLPcPf 7 0.015171737 8.789544867 5.456211534 13.70258835 4.271894233
59 DcLPcPf 7 0.014771424 8.843024555 5.509691222 13.75606803 4.245154389
46 CSLPc 7 0.012575983 9.164835738 5.831502405 14.07787922 4.084248798

Models comprise different combinations of completeness, dinosaur and pterosaur bearing collections and formations, stage length and Lagerstätten presence/absence that potentially explain pterosaur diversity. Models are ranked in order of explanatory power according to the Akaike’s second-order corrected information criterion (AICc), where a smaller value equals a superior fit. The full table can be found with Supporting Information. Abbreviations of parameters: C, Completeness. Df, Dinosaur Bearing Formations. Dc, Dinosaur Bearing Collections. S, Stage Length. L, Lagerstätten presence/absence. Pf, Pterosaur Bearing Formations. Pc, Pterosaur Bearing Collections.