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DOI : 10.1111/j.1096-0031.2007.00161.x

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. M. Post and . Leg,

, Shape of the ascending process of the astragalus: (0) Anteroposteriorly deeper than transversely wide

, Buttress dividing posterior fossa of astragalus and supporting ascending process (Wilson and Sereno 1998): (0) Absent; (1) Present

. M. Post and . Leg,

, Vascular foramina set in a fossa at the base of the ascending process of the astragalus, Wilson and Sereno, 1998.

, Posterior extent of ascending process of the astragalus (Wilson and Sereno 1998): (0) Well anterior to the astragalus

, Sharp medial margin around the depression posterior to the ascending process of the astragalus, 1996.

, ) Greater than 30 per cent of the transverse width of the astragalus; (1) Less than 30 per cent of the transverse width of the astragalus, Transverse width of the calcaneum (Yates and Kitching, vol.324, p.265, 2003.

. Post, Leg 413 Lateral surface of calcaneum: (0) Simple

, Medial peg of calcaneum fitting into astragalus (Sereno et al. 1993): (0) Present, even if rudimentary

, Ossified distal tarsals (Gauthier 1986): (0) Present

, Shape of posteromedial heel of distal tarsal four (lateral distal tarsal) (Sereno et al. 1993): (0) Proximodistally deepest part of the bone

, Proximal width of the first metatarsal (modified from Wilson and Sereno 1998): (0) Less than the proximal width of the second metatarsal; (1) At least as great as the proximal width of the second metatarsal, vol.331, p.270

. M. Post, Pes 420 Shape of the medial margin of the proximal surface of the second metatarsal (modified from Sereno, 1999.

, Greater than 60 per cent of the minimum transverse shaft diameter of the second metatarsal; (1) Less than 60 per cent of the minimum transverse shaft diameter of the second metatarsal, Minimum transverse shaft diameters of third and fourth metatarsals, vol.337, p.276, 1998.

. M. Post and . Pes,

, Transverse width of the proximal end of the fourth metatarsal (modified from Sereno 1999): (0) Less than twice the anteroposterior depth of the proximal end

. M. Post and . Pes,

, Less than 25 per cent of the length of the fifth metatarsal; (1) Between 30 and 49 per cent of the length of the fifth metatarsal, Transverse width of the proximal end of the fifth metatarsal, 1999.

, Transverse width of distal articular surface of metatarsal four in distal view (Sereno 1999): (0) Greater than anteroposterior depth

, All longer than wide; (1) Proximalmost phalanges longer than wide while more distal phalanges are as wide as long; (2) All non-terminal phalanges are as wide, if not wider, 1998.

. M. Post, Pes 428 Length of the ungual of pedal digit one: (0) Less than at least some non-terminal phalanges; (1) Longer than all non-terminal phalanges, vol.344, p.284

. M. Post and . Pes,

, Shape of the ungual of pedal digit one (Wilson and Sereno 1998): (0) Shallow, pointed, with convex sides and a broad ventral surface; (1) Deep, abruptly tapering, with flatenned sides and a narrow ventral surface, vol.345, p.276

. M. Post and . Pes,

, Shape of proximal articular surface of pedal unguals (Wilson and Sereno 1998): (0) Proximally facing, visible on medial and lateral sides; (1) Proximomedially facing and visible only in medial view, causing medial deflection of pedal unguals in articulation, vol.346, p.292

. M. Post and . Pes,

, Shape of the unguals of pedal digits two and three (Wilson and Sereno 1998): (0) Dorsoventrally deep with a proximal articulating surface that is at least as deep as it is wide; (1) Dorsoventrally flattened with a proximal articulating surface that is wider than deep, vol.348, p.288

. M. Post, Pes 432 Length of the ungual of pedal digit two (modified from Gauthier 1986) [Ordered]: (0) Greater than the length of the ungual of pedal digit one; (1) Between 90 and 100 per cent of the length of the ungual of pedal digit one; (2) Less than 90 per cent of the length of the ungual of pedal digit one

, Greater than 85 per cent of the ungual of pedal digit two in all linear dimensions; (1) Less than 85 per cent of the ungual of pedal digit two in all linear dimensions, vol.350, p.291, 2003.

. M. Post, Pes 434 Number of phalanges in pedal digit four, 1986.

, ) Has proximal and distal ends approximately subequal in width; (1) Has a transversely widened proximal end and narrowed distal end so that the metatarsal if funnel or paddle-shaped, Metatarsal V in dorsal (cranial) view, vol.277, p.273, 1995.

. M. Post and . Pes,

V. Metatarsal, ) <50 per cent of metatarsal III length; (1) >50 per cent of metatarsal III length, Wilson and Sereno, vol.278, issue.0, p.272, 1993.

. Post, Pes Width of the midshaft of the first metatarsal (Wilson and Sereno 1998): (0) Not greater than the width of the midshaft of the second metatarsal; (1) Greater than the width of the midshaft of the second metatarsal

, Shorter than other pedal unguals; (1) Subequal than other pedal unguals; (2) Longer than other pedal unguals, Galton and Upchurch, issue.0, 1998.

, Metatarsal III length / tibia length, 2003.

, Metatarsal I length / width ratio (modified after Yates and Kitching, 2003.

, Metatarsals II and III proximal width / length ratios, 2000.

. Benton, Shorter than other pedal phalanges; (1) Subequal to, or longer than, all other pedal phalanges, Yates and Kitching, issue.0, 2000.

, Ungual on pedal digit I (Yates and Kitching, 2003.

, Orientation of proximal articular surface of metatarsal one, 2002.

S. Wilson, Large (fifth metatarsal at least 70 per cent of fourth metatarsal), robust and weight bearing; (1) Reduced, non-weight bearing. Y 341 Post. M. Pes 448 Length of the first phalanx of pedal digit one (Yates and Kitching 2003): (0) Greater than the length of the ungual of pedal digit one, Pedal digit five, 1998.

S. Wilson, Well-developed, 0100????????????????????????????????????????0 Coloradisaurus ?00?1010?0?010111001?01?0??01111?????0??0???0??0100??0001?00??1101101111101?01???1010110 11?010001101100101?10?1021???0?0????00??00101000000021010000001???????????0????0?0?001010 ?0001????????????????????????????????01200????11111010??01100100110200111010101112002000110 ?101100100?????111021110100?000021001010 Efraasia ?00?1000001110111?0?000112?000110?10101?0?0?1000100?0?0??1?0????0?????0??1???????0010?110 10010000101100001???????10??0??????00??00???000?00??10????0?0?011001000??011?0000?1011?00 00??00??1100??0?011100?10?0100010100?1210210?0210000000000?10??100?001010100000?20?20 0???0?0?11??00?1?0?????02?1?000020000110010?0 Eoraptor 00011000000000000001?0100200001000100001000??000000101?1?0?000000???????????????000000? 10001??0001000?00000????00?000?1?0?0100??000???0?1000?1010?0?001???0?101?02?11?0000?1010 100?000?0??0110?01201010000110101010010001?0???11?0000001?0100?100100000101000?01011 002?0100????????0????0??0??011??00001000????0?000 Eucnemesaurus ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ???????????????????????????0??00????1???0???0?10???1?21?????0?0???????????????????????????????????????1 01???12???101????????1??111111?100210?000101100????20???1????1????????????1??1?1?1?00???00??00 ??10 Ha_Noosi 10011010102110111101?111011001111110101111001000000301000000100000021001111?010111 0?01101110?00001?110010111101010001?1?11110012001010000001210110101011????????????????? ??101010000010011?1101211010100111001000??????????????1?111010?????????1100?001010101101 220020000?00?0?1??00?010???11011?1010020??021001?10 Jingshanosaurus 110????0?02111?11?1??000???0?1??1?101?00??????1011??00010?????000?0001??????0????00?0??0?101 1020110-100-11111010?0???0?0?????01?001010000000?1011??0000??10011102?0010000000010??00 00??0?????113110?01102110010?010?10?12003000120110001?011??10?110?0010?0101001?20?2000 0????1110?00???0??21101111110010000?1101020 Lamplughsaura 1?011????0??1?????1???0012?000??1???????10011?0??????01??000??1?01?000?02???0???011?0?1?000?0 0101101110111??1?1000?11010?10000??0?0000?01?012101???0001????????????00??0?????10??11001 00?10?11001?01010020000?00???????????????11011000???1??01??21021010?010110??20?201?0?0?0? 11??00?0????31101???010020??021001?10 Leonerasaurus ?????????????????????????????????????????????????????????????????????????????????000?????????1??1101110 111????1?10?110?0????000000001000??01?1010?00001??11?1020??????????????1???0100?????????????? ???????????????111?1220????????0???1??1???1??????0?????????????????????????????????????111????????0??? ?0???01??? Lessemsaurus ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????10?0??00001?00?0?010200011011?01100?????????????????????011???00100011?????31???1?1?? ???010??101101121031011?01?010???111?10?21021011101011110200200010??001101100??????11?? ?2???00????????100?0 Leyesaurus ?1?1?0?01???1??11?1????????010?11?101011100?01001?0??1121???????0????????????????00?0?1??00??0 000101100101?100101?011??0?10100????????????????????????????????????0?1??0?0????????????????????? ????????????????????????????????????0???1????????????????????????????????????????????????010?????211???? ???0??????0?0 Lufengosaurus 1?????1???21?0111001?11?011001111?10101111011?00000201010??01000???110002???01?????10?11 10?1?0000101100?011??01000???0?011??0012001010001000?1011110?010110010113?00100000020 11100000100111111131102010011100100010110?12?020011?111010000111110111020010101010 1112012000100000110??0???0112110112001002000021001010 Maphutseng ????????????????????????????????????????????????????010??????????????????????????????????????????????????? ?????????????0????001?00?00010??01?1?11??1????????????31011??1?1100?0???00010011?????21??1?1?? ????0?0??0011001200200000100010??????1???100100101010110?1?0020001100???????????????11???2 1???0????????01??0 Massospondylus ?0111010101{01}1011100100111200001110101011100{01}1100{01}003{01}1110000100000100100 101?011111010?11000010000101100101110010?00110100111001200101000100121011010101111 001011??00000000011101000001001111101211020100111001000001102120021111111101000011 11101110?0010001000011201200001000?1100?0???0???110????0000?0?0020001010 'SAM-PK-3449' ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ????????????0?????0???????0?0100021?1???110??????1?????101??0??1????????????????????????????????????? ?????????????????1???1?????????????????????????????0?2100000???????????????????????????????????????? NM_QR_3314 101??010?02110110?0????1?110111-1?1011110201??00000?11010?001000011101??20??01?0100?0?? 111011?0011011?00011?1?100?011?10010000?0???0????1000????????101??1001011????1????0????0?? 1?00??011???0?21?020110111001000101101?200???????????????111?021?1?????????0???1?20?????0???0 ?1???0??010?0???0??1?110020?0121001010 NM_QR_1551 ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????10?0?????0??00??10?0100021???100?00?????????1?001??0?01?0?0???0000?011????????????????? ??????1011001200?11010110010??????????010?10101110101112002?000100???10?00???????11?????1? 00????????01??0 Meroktenos ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ????????????0????00?????????????????????????????????????????????????????????0?1???????????????????????1?1 ???1220301?1???0010??????????110210??1?1001111??????????????????????????01?????????????????????? Mussaurus ?0111010?02?00?1101???0??1??0??11?1?101000??1000100??001???0?0?00?10????????01??11010?1??1? ???0101011?0101?????0000010?0?????0??00?000000000?101?0?1?01?0??11021???01??0?0?1010??010 010011???01211?201???01?010????0??21200??11121?1010110111110?1102001010100011120120111 000011111000?????111012110?001000021001010 Pampadromaeus ?01??010?0??10000001??0??0??01?00?1?0000??0??000100?01021????????????????????????00?0???01000 0000101000001???????????????????????????????????1?1?????????00??00????????????21?1?????????????????? ????????????????00?00??1?0?0?1??????????????????0000000000000010210????0?????????????????????????? ????????????????? Panphagia ???????????????????????????0?????????????00?1????????????110?????1100????????????001001100??000?010 1000001?????0001?10?0???100??00???0?0?00??1?1??00?0??????1?????001??00001011?????????????????? ??????????????????1??101002101????0???1??010110???????????????????00100111??001000011????????0?? ?????0????????????0 Plateosaurus ?001100010211011100100111210101101100001020110001000{01}00011000000011201111101010 101010110111010000101100011111010101110101101001200101000000021011000101101?01010? ?0{01}10000?020111000001001111101111020100110001000{01}{01}1101121020110?11001011011 11101100100101010100112012000010000110000111001110012??00002000010001010 Pulanesaura ??????????????????????????????????????????????????????????????????????????????????????????????0?11?11111 1??????????????0??0??0?????100?03?01?101???1?00??????????211???1?0????????1??1??01????????????????? ???????????????????????????????11???????????????????????????0?0?????????????????????????????????????????? Riojasaurus 1001?0?0?0??101?10?1000????0??1?1?10??001?0???00100?01010??000000?1201??11??0????0010??100 ?0?00001011000????001001??10?0110100??001010000000?101?00010????0010?11?011??000?101110 100010011111?1?1?010100?1100?000011101120021111?11001010011111?1110210111010?110120 0201001000?11??00??????011?????100021??110001010 Ruehleia ??????????????????????????????????????????????????????????????????????????????????????????????????????????1 ?0?100000101011?1001200101000?000210111001011?01?1010???1???0???10?1??00001?0??????????0? 0??0????0?00?001002120020111?100010000010111?110?0010101000111200?001100?001111001??? ??????????????????????????? Sarahsaurus ?0?1?0??1???????11???????11???????101?1010001000?0??010100?0???00?101001201?01???00?0?1??101 10000101100?011???1?1?0???1?110100??0??0??0???????111???1?01?10??11??1?01????0?101110?00010 01?0111111?0201002110010001?110?1200101111101010????0?????110?10100010100?1?012001000 ?0011??10??00??111?1311000020001200010?0 Saturnalia ????????????????????????????????????????????1???????00111?????????????1?000?0????00?0???????????010?? 00?????????????????1???001000001000?000?101010000?0?0001001???00??0?00211110000000010????? ????????????????????1?0?001011110?0000101?0111?00?000?000010001000110010011100001100001? ?001000010000??0?0100?????0?0 Sefapanosaurus ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ??????????0??????00??00?01000?001?1?1???1?0?????????????01??0??1???010??00?0012?1101212?101??? ??0010??????????????????????????????????1???00101010??0???0????00?0?001111001000???11???????????? ?????????? Seitaad ??????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????0??0100????????1??????????????????????????????0????00??????11?1?1?02010??11001 0????????????????1?100010????????????????????????????0?2??????????????????001????????010000??0?0?00? ?0 Thecodontosaurus ???????0?????????????????????????????????????????????????????????0?0000100010????0010??10???100?010 1100001??????0????????????0??00?0?000??00?101??00?0??1??011????001??0??0???1????00??011?1?100? ?010100?10?0100000?10??220211?????0??0??????????10000?????1000011?0??0000?0?001100001?????? ??0????????????????????? Unaysaurus ?00?10?010??10011?11????????10??????????????1000?00??0010???001??????????????????101?????00?100 00101100??1??0???????????????????00??100???0????1???????????????????01??????10?110??00100????????1 ??111??????0?0??????????????????????????????????????????????????????????????0?11???0???????10??????????? ??????????? Xixiposaurus 1??1?0?0?0???0?11?11???1?1??0??-1?10111011000100100?111200?0?0000?0?10??????0????00?0?1???0 ??000?101100001??1?1??????0???10?00????????????????????????????????????????????????????000?????????? ??????????????????10110??210201?1?001010110010??2?10??00100010101??2002?0001??0????????????? 1010011?00002??0?20000??0 Yunnanosaurus 10?1101010?010111????0001????11?1?1011110???0000?00011120??000000?0?01??????0????0010?1?? 101?020010-111, pp.1210011101301111010010000001-011, 1998.

, 1011111111011011??2001?12121112101121111121 Lapparentosaurus ??????????????????????????????????????????????????????????????????????????????????????????????0?11?1?1?1? ??????110???1??????????1???0011311121?10110?00????????????11??1?1101?001?00100102??1??001??00 10-???110??21011?02?1?0101000100101?100000?1101111100111?102100111?111110011??????10?????1???????1???11??? Omeisaurus 1210011101201111010010000001-011-1001010?0110013?01202011111100001???0001????0101? 010102001111111111113?1?11200?01??110111?111110011312121110110110?0211113?311011111 0?111101211101002???0001?10001?-???1110110011?02?1?00?1?110??10011??00?1211?11-111101 ?21??1101?1?01111100??1???2101122?21112101121111121 Shunosaurus, pp.211211-1111111210211