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Matrix 3.0 :-)
Thanks to HP John Bois for the refs, I'll see whether I can find some.
I've corrected some characters and added some more, some of which are so
obvious that I wonder why I had forgotten them so far.
Possession of character 28 automatically results in state 1 for character
27, but not vice versa.
I've also finally added *Protarchaeopteryx*, whose description is so
excruciatingly short :.-( .
I'd like to add the state "narrow in front and very wide behind (2)" to
character 6. This occurs in *Avimimus* and Neornithes at least;
unfortunately I can't find a dorsal view of a pelvis of a more basal
pygostylian, so it might be, at this level, an uninformative autapomorphy of
*Avimimus* (which I give 0 here). Could someone help me here? :-) I'm also
not sure about the state of alvarezsaurids; that of *Alvarezsaurus*
(reconstructed) looks like 0, so I coded them that way.
BTW, the sacrum of *Protoavis* is unknown; Chatterjee has drawn a
reconstruction of the entire pelvis in cranial view with a very broad sacrum
(state 1), but maybe that's not necessary. (Assuming the pelvis _is_ from a
bird. It may be too birdlike for that.)
Dumb thing is, the sacrum and ilia of *Rahonavis* are known, but only
illustrated in lateral view... :.-(
1. Pubic apron more than one-third the length of the pubis (0), shorter or
absent (1)
2. Pubis not (0) smoothly convex over its entire length including the
foot/boot (1)
3. Obturator process on ischium present (0), absent (1)
4. Ischial symphysis present (0), absent (1)
5. 5 or less (0), 6 or more (1) sacral vertebrae
6. sacrum + ilia breadth: narrow (0), wider than dorsal and caudal vertebrae
(1)
7. Antitrochanter absent (0), small (1), large (2) (ordered)
8. Extra exit for V1 nerve absent (0), present (1)
9. Quadrate single-(0), double-headed (1)
10. Inflated parasphenoid capsule absent (0), present (1)
11. Inflated basisphenoid, pneumatically excavated internally: absent (0);
present (1)
12. Contact between jugals and postorbitals present (0), absent (1)
13. Ascending process of jugal present (0), absent (1)
14. 2 (0), 0 (1), 1 (2) ridge(s) on the nasals (unordered)
15. Premaxillary teeth serrated (0), unserrated (1)
16. Maxillary and dentary teeth serrated (0), unserrated (1)
17. Constriction between tooth and crown absent (0), present (1)
18. Coronoid II = supradentary = intercoronoid present (0), absent (1)
19. Metatarsal III not (0) compressed or absent (1) in its proximal half
20. Mt III not (0) expanded (1) in its distal third
21. Mt III not (0) plantarly displaced at its proximal end (1)
22. Mt II and IV don't (0) touch (1) at their cranial proximal ends,
excluding III from view
23. Trochanteric crest divided (0), undivided (1)
24. Tail : femur ratio over (0), under (1) 3.5
25. Leg length : tail length ratio under 0.45 (0), in between (1), above 0.8
(2)
26. over 45 (0), 26 -- 39 (1), 25 or less (2) caudal vertebrae
27. Pygostyle absent (0), present (1)
28. Tail stiffened distally (0), distally and in the middle, but mobile at
the base (1), mobile throughout its length (save a pygostyle) (2)
29. Pre-, postzygapophyses and chevrons not (0) extended into long rods that
stiffen the tail (1)
30. Caudal pneumatization absent (0), occurring (1)
31. Distal caudal vertebrae subequal in length to proximal ones (0), 130% or
longer (1), shorter than the proximal ones (2)
32. Ratio of height of neural canal in dorsal vertebrae to height of cranial
articular face less (0), more (1) than 0.40
p = polymorphism
u = unapplicable
00000 -0--0 0-0-1 000-0 00000 00000 ?- Compsognathidae
10--- -0--- ----- 000-- --1-- --000 -- *Bagaraatan*
00010 10000 00000 00010 00000 1011p 10 Dromaeosauridae
000?0 ----0 -00?0 00-10 00000 10110 1- *Bambiraptor*
00010 10-00 0-0-1 00010 00-01 -0110 1- *Sinornithosaurus*
0-0?0 ----- ----1 p1-10 00-01 2011- 1- *Microraptor*
00000 10000 0-001 1?110 00002 20100 1- *Archaeopteryx*
00011 -0--- ----- ---00 00101 --100 11 *Rahonavis*
0p000 00100 10020 00011 11001 10000 00 Tyrannosauroidea
0000p 0?101 100?1 11111 00001 10000 00 Ornithomimosauria
0-001 -0101 100?1 p1-11 11101 1-100 ?0 Troodontidae
01001 0?110 100pu uu110 00012 10201 20 Oviraptoridae
01001 01--0 ----u uu111 110-- --201 20 Caenagnathidae
010?0 01110 -00-1 u1-10 00012 2?200 2- *Caudipteryx*
010-1 01--- ----- ----- ---12 21201 2- *Nomingia*
0?--- ----- ----0 01-00 00-11 1-20- 0- *Protarchaeopteryx*
0-00p -21-0 1001u 01100 00012 1-200 20 Segnosauria
10--1 02--0 011-- ---11 u11-- ---0- -1 *Avimimus*
00101 02-10 01111 11-00 00011 1-201 p1 Alvarezsauridae
----- ----- ----u ---00 -0112 ---0- 1- *Yandangornis*
10111 -2110 0p011 11110 ?0112 2120- 21 Pygostylia