ESM figures S3-S7

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Figure S3. Posterior presacral (dorsal) vertebrae of the holotype of Nyasasaurus
parringtoni gen. et sp. nov. (NHMUK R6856). Presacral vertebra missing the neural arch
in (a) dorsal, (b) ventral, (c) right lateral, (d) posterior, and (e) anterior views. Anterior
half of the other preserved presacral vertebra in (f) anterior and (g) dorsal views. Arrow
indicates anterior direction. Scales = 1 cm. Abbreviations: hyp, hypantrum; nc, neural
canal; ns, neural spine; par, parapophysis; pre, prezygapophysis. MorphoBank accession
number M128709.
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Figure S4. Partial first sacral vertebra (first primordial sacral) and complete right, first
sacral rib of the holotype of Nyasasaurus parringtoni gen. et sp. nov. (NHMUK R6856)
in (a) anterior, (b) posterior, and (c) lateral views. Arrow indicates anterior direction.
Scale = 1 cm. Abbreviations: a., articulates with; cen, centrum; il, ilium, nc, neural canal;
pre, prezygapophysis; sr2, sacral rib 2. MorphoBank accession number M128710.
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Figure S5. Partial second sacral vertebra (‘insertion’ of Nesbitt [11]) and partial right,
second sacral rib of the holotype of Nyasasaurus parringtoni gen. et sp. nov. (NHMUK
R6856) in (a) dorsal, (b) right lateral, (c) left lateral, (d) posterior, and (e) anterior views.
Arrow indicates anterior direction. Scale = 1 cm. Abbreviations: nc, neural canal; sr2,
sacral rib 2. MorphoBank accession number M128711.
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Figure S6. Partial third sacral vertebra (second primordial sacral) and partial right and
left, third sacral ribs of the holotype of Nyasasaurus parringtoni gen. et sp. nov.
(NHMUK R6856) in (a) dorsal, (b) ventral, (c) right lateral, (d) posterior, and (e) anterior
views. Arrow indicates anterior direction. Scale = 1 cm. Abbreviations: nc, neural canal;
sr3, sacral rib 3. MorphoBank accession number M128712.
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Figure S7. Anterior cervical vertebrae of the referred specimen of Nyasasaurus
parringtoni gen. et sp. nov. (SAM-PK-K10654). One complete and a poorly preserved
half of a second anterior cervical in (a) left lateral, (b) right lateral, (c) posterior, (d)
ventral, and (e) dorsal views. A nearly complete cervical vertebra in (f) left lateral, (g)
right lateral, (h) anterior, (i) ventral, (j) dorsal, and (k) posterior views. Arrow indicates
anterior direction. Scales = 1 cm. Abbreviations: cen2, centrum of the second attached
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cervical vertebra; dep, depression; df, deep fossa; dia, diapophysis; epi, epipophysis; nc,
neural canal; ns, neural spine; ns2, neural spine of the second attached cervical vertebra;
par, parapophysis; pre, prezygapophysis; pz, postzygapophysis. MorphoBank accession
number M128713.
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