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Figure 8 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 8. Middle to posterior cervical vertebrae of the holotype of Mambachiton fiandohana (UA 8-25-97-132). Fissh persevered cervical vertebra in less lateral (A), right lateral (B), anterior (C), posterior (D), ventral (E), and dorsal (F) views. Seventh preserved cervical vertebra in less lateral (G), right lateral (H), anterior (I), posterior (J), ventral (K), and dorsal (L) views. Colours of the vertebrae correspond to those in Figures 3–6. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: dia, diapophysis; ns, neural spine; par, parapophysis; pre, prezygapophysis; poz, postzygapophysis.
Figure 16 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 16. Scapulocoracoids referred to Mambachiton fiandohana (FMNH PR 5065). Right scapulocoracoid (FMNH PR 5065, collected as field number 9-7-03-788) in lateral (A), ventrolateral (B), posterior (C), and medial (D) views. Less scapulocoracoid (FMNH PR 5065, collected as field number 9-1-98-395) in lateral (E), ventrolateral (F), posterior (G), and medial (H) views. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: acp, acromion process; cf, coracoid foramen; co, coracoid; gl, glenoid; sc, scapula; tu, tuber.
Figure 19 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 19. Dinosauriform remains from the type locality of Mambachiton fiandohana ('M-13') (C–K) and another contemporaneous 'basal Isalo II'/Makay Formation locality with a similar fauna (A, B). Less maxilla fragment (FMNH PR 5068) in lateral (A) and medial (B) views. Smaller less tibia (FMNH PR 5066) in proximal (C), distal (D), lateral (E), and medial (F) views. Larger less tibia (UA-8-24-98-199) in anterior (G), medial (H), posterior (I), and lateral (J), and distal views. Arrow indicates anterior direction. Scales = 1 cm. Abbreviations: a., articulates with; aas, ascending process of the astragalus; anf, antorbital fenestra; anfo, antorbital fossa; cc, cnemial crest; g, groove; lc, lateral condyle; lp, lateral process; mc, medial condyle; pp, palatal process; t, tooth.
Figure 5 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 5. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in dorsal view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 3 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 3. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in right lateral view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading in (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 6 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 6. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in ventral view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading in (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 2 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 2. Right postfrontal of the holotype of Mambachiton fiandohana (UA 8-25-97-132) in dorsal (A) and ventral (B) views. Arrow indicates anterior direction. Scale bar = 1 cm. Abbreviations: a., articulates with; fr, frontal; om, orbit margin; pa, parietal; stf, supratemporal fossa.
Figure 14. Sacral vertebra 1 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 14. Sacral vertebra 1 referred to Mambachiton fiandohana (FMNH PR 5065) in less lateral (A), right lateral (B), ventrolateral to highlight the articular surface of sacral rib 1 (C), anterior (D), posterior (E), dorsal (F), and ventral (G) views. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: ns, neural spine; pre, prezygapophysis; poz, postzygapophysis; sr, sacral rib.
Figure 1 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 1. Reconstruction of Mambachiton fiandohana, based on that of Teleocrater rhadinus (Nesbiư et al. 2017). Light blue bones represent elements from the holotype and light red bones are from the referred material which we consider to be from the same individual. Scale bar = 25 cm.
Figure 4 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 4. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in less lateral view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading in (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 10 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 10. Osteoderms and possible osteoderms of the holotype of Mambachiton fiandohana (UA 8-25-97-132). A, close up of the right paramedian osteoderms in lateral view. B, close up of the less paramedian osteoderms in lateral view. Three disarticulated less paramedian osteoderms in ventral (C) and medial (D) views. E, possible osteoderms. Isolated osteoderm with a unique morphology compared to the others in dorsal (F) and posterior (G) views. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: anl, anterior lamina; ap, anterior process; gap, groove for anterior process.
Figure 13 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 13. Posterior trunk vertebrae referred to Mambachiton fiandohana (FMNH PR 5065). Posterior trunk vertebra in less lateral (A), right lateral (B), anterior (C), posterior (D), dorsal (E), and ventral (F) views. Another posterior trunk vertebra in less lateral (G), right lateral (H), anterior (I), posterior (J), dorsal (K), and ventral (L) views. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: dia, diapophysis; ns, neural spine; par, parapophysis; pre, prezygapophysis; poz, postzygapophysis; syp, synpophysis.
Figure 18 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 18. Referred proximal half of less femur referred to Mambachiton fiandohana (FMNH PR 5065) in proximal (A), posteromedial (B), posterolateral (C), anterolateral (D), and anteromedial (E) views. Arrow indicates anterior direction. Scale bars = 1 cm. Abbreviations: alt, anterolateral tuber; amt, anteromedial tuber; at, anterior trochanter; ss, fourth trochanter (mostly eroded); g, groove; pmt, posteromedial tuber.
Figure 17 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 17. Right ilium referred to Mambachiton fiandohana (FMNH PR 5065) in right lateral (A), anterior (B), medial (C), dorsal (D), and ventral (E) views. Arrows indicate anterior direction. Scale bar = 1 cm. Abbreviations: ace, acetabulum; ap, anterior process; ip, ischial peduncle; mr, medial ridge; no, notch; pup, pubic peduncle; sac, supra-acetabulum crest; sr1, sacral rib 1 scar; sr2, sacral rib 2 scar.
Figure 22 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 22. Time calibrated phylogeny of early-diverging avemetatarsalians highlighting the co-occurrence of Mambachiton fiandohana, a lagerpetid (Kongonaphon kely), and a member of Silesauridae from the M-13 locality and nearby localities from the 'basal Isalo II'/Makay Formation (light red) of Madagascar prior to the origin of dinosaurs. The staggered beginnings/ends of the boxes represent uncertainty in the duration of the taxon. Filled circles = nodes, chevron = stem.
Figure 21 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 21. Phylogenetic relationships of Mambachiton fiandohana in a summary tree (880 MPTS; 5037 steps), see Supplementary Information Figure S1 for full tree. Filled circles = nodes, chevron = stem.
Figure 20 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 20. Reptile remains from the type locality (M-13, 'basal Isalo II'/Makay Formation) of Mambachiton fiandohana. Right dentary fragment (UA 9-6-03-781d) in lateral (A), medial (B), and dorsal/ occlusal (C) views. Incomplete mid to posterior caudal vertebra (UA 9-11-03-803b) in anterior or posterior (D), lateral (E), and ventral (F) views. Cervical centrum (UA 9-11-03-803a) in lateral (G) and ventral (H) views. Right ilium (UA 9-10-98-538a) in lateral (I), medial (J), dorsal (K), ventral (L), and anterior (M) views. Partial?radius (UA 9-10-98-538b) in two (N, O) and distal (P) views. Distal end of a right femur (UA 9-1-98-391) in anterior (º), medial (R), posterior (S), lateral (T), and distal (U) views. Arrows indicate anterior direction. Scales = 1 cm in D-F, I-U and = 5 mm in A-C, G, H. Abbreviations: ace, acetabulum; al, alveolus; ap, anterior process; ctf, crista tibiofibularis; dia, diapophysis; ip, ischial peduncle; lc, lateral condyle; mc, medial condyle; Mg, Meckelian groove; mr, medial ridge; no, notch; par, parapophysis; pup, pubic peduncle; r, ridge; sr1, sacral rib 1 scar; sr2, sacral rib 2 scar.
Figure 7 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 7. Anterior to middle cervical vertebrae of the holotype of Mambachiton fiandohana (UA 8-25-97-132). Second persevered cervical vertebra in less lateral (A), right lateral (B), anterior (C), posterior (D), ventral (E), and dorsal (F) views. Fourth persevered cervical vertebra in less lateral (G), right lateral (H), anterior (I), posterior (J), ventral (K), and dorsal (L) views. Colours of the vertebrae correspond to those in Figures 3–6. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: dia, diapophysis; ns, neural spine; par, parapophysis; pre, prezygapophysis; poz, postzygapophysis.
Data from: A new taxon of cynodont from the Tropidostoma Assemblage Zone (upper Permian) of South Africa, and the early evolution of Cynodontia
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Data from: A new taxon of cistecephalid dicynodont from the upper Permian Kundaram Formation of India
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