SUPPLEMENTAL DATA
JOURNAL OF VERTEBRATE PALEONTOLOGY
A confuciusornithiform (Aves, Pygostylia)-like tarsometatarsus from the Early Cretaceous of
Siberia and a discussion of the evolution of avian hind limb musculature
JINGMAI K O’CONNOR,* ALEXANDER O. AVERIANOV, and NIKITA V. ZELENKOV
*Corresponding author.
1 Primary results
Figure S1. Hypothetical phylogenetic relationships of Evgenavis nobilis gen. et sp. nov. The reduced consensus tree (314 most parsimonious trees [MPTs], tree length [TL] = 80. 80266 steps, Consistency Index [CI] = 0.375, Rentention Index [RI] = 0.657) using implied weighting
(k = 3) with Evgenavis and Mystiornis resolved within Ornithuromorpha.
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Figure S2. Hypothetical phylogenetic relationship of Evgenavis nobilis gen. et sp. nov. Reduced consensus tree after adding two characters (1,000 + trees, TL = 858 steps) with Evgenavis and
Mystiornis resolved within Enantiornithes.
3 Matrix with 245 Characters
Modified from O’Connor et al. (2011) by the addition of four taxa: Evgenavis,
Mystiornis, Avisaurus archibaldi, and Soroavisaurus (see separate TNT file).
Figure S3. Absolute Bremer supports for analysis with 245 characters.
4 Figure S4. Relative Bremer supports for analysis based on 245 characters.
5 Implied Weights
Analysis of 245 characters, run using implied weighting (showing results for first and second round of Tree Branch Bisection).
Figure S5. Analysis of 245 characters using implied weights, k = 3. First round of TBR; eight trees, TL = 80.80266 steps (excluding Chaoyangia).
6 Figure S6. Analysis of 245 characters using implied weights, k = 3 (Chaoyangia excluded).
Second round of TBR, 314 trees, TL = 80. 80266 steps; CI = 0.375; RI = 0.657.
7 Figure S7. Analysis of 245 characters using implied weights, k = 2. First round of TBR; results produced two MPTs, TL = 97.43443 steps.
8 Figure S8. Analysis of 245 characters using implied weights, k = 2. Additional round of TBR; 69
MPTs, TL = 97.43443 steps.
9 Figure S9. Analysis of 245 characters using implied weights, k = 1. First round of TBR produced four MPTs, TL = 124.59219 steps (reduced consensus, Chaoyangia removed).
10 Figure S10. Analysis of 245 characters using implied weights, k = 1. Additional round TBR produced 69 MPTs.
11 Matrix with 247 Characters
New characters: character 246: tubercle for the attachment of the m. tibialis cranialis: one
such tubercle (0); two such tubercles (1). Character 247: medial condyle of metatarsal II trochlea forming strong plantarly projecting wing: absent (0); present (1). For matrix see separate TNT file.
LITERATURE CITED
O'Connor, J. K., L. M. Chiappe, and A. Bell. 2011. Pre-modern birds: avian divergences in the
Mesozoic; pp. 39–114 in G. D. Dyke and G. Kaiser (eds.), Living Dinosaurs: the
Evolutionary History of Birds. Wiley Blackwell, Chichester, U.K.
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