partial

A photograph of partial specimen American Museum of Natural History (AMNH) 22555, posterior dorsal vertebrae, and the sacrum and pelvis (both iliae, and right ischium and pubis) of Anhanguera sp. (formerly often assigned to Anhanguera santanae),[1] from the Early Cretaceous Romualdo Formation (former Romualdo Member of the Santana Formation) of NE Brazil in dorsal view.

Holotype of Alcione elainus. Fig. 6 of: Longrich, N. R., Martill, D. M., & Andres, B. (2018). Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary. PLoS biology, 16(3), e2001663. --- Original figure legend: A. elainus FSAC-OB 2, holotype partial skeleton and FSAC-OB 217, metacarpal IV. (A) Holotype right humerus in anterior view, (B) holotype right ulna and radius in anterior view, respectively, (C) holotype sternum in left lateral view, (D) referred metacarpal IV, (E) holotype, distal end of left metacarpal IV and left scapulocoracoid, and (F) holotype right femur in posterior view. Abbreviations: co, coracoid; cr, cristospine; dc, distal condyle; dpc, deltopectoral crest; ect, ectepicondyle; fh, femoral head; gl, glenoid; gt, greater trochanter; hh, humeral head; hum, humerus; mcIV, metacarpal IV, pc, proximal cotyle; pf, pneumatic foramen; rad, radius; scpr, supracondylar process; ste, sternum; uln, ulna.

Forelimb and partial hindlimb of the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 22 in Merriam (1903), done by an uncredited artist. Original description: Leptocheirus zitteli n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1. — Superior side of left anterior limb. r, radius. Fig. 2. — Posterior limb. t, tibia.

Australian Mesozoic pterosaurs. A, Aussiedraco molnari (QM F10613; holotype) mandible in dorsal view. Scale = 1 cm. B, Mythunga camara (QM F18896; holotype) partial skull and mandible in left lateral view. Scale = 5 cm. C, Thapunngaka shawi (KK F494; holotype) mandible in left lateral view. Scale = 5 cm. D, Ferrodraco lentoni (AODF 0876; holotype [part]) partial skull and mandible in left lateral view. Scale = 5 cm.

Vertebrae, scapula, forelimb bones, and pelvic bones of Martharaptor greenriverensis (UMNH VP 21400). (A)–Partial cervical neural arch, dorsal view. (B–E)–Cranial dorsal centrum in cranial (B), caudal (C), right lateral (D), and left lateral (E) views. (F–G)–Distal caudal centrum in lateral (F) and ventral (G) views. (H)–Possible ulna. (I)–Possible radius. (J–K)–Left scapula in lateral (J) and medial (K) views. (L)–Proximal end of ischium. (M)–Possible distal end of pubis Scale bar = 50 mm. acr  =  acromium process, ar  =  acetabular rim, gl  =  glenoid, hyp  =  hypapophysis, poz  =  postzygapophysis, pnp  =  pneumatopore, prz  =  prezygapophysis.

Bones referred to Ibirania parva, A. Middle caudal vertebra (MPMA 08-0060-07) referred to I. parva. B. Views of partial right ulna (LPP-PV-0202) of the I. parva holotype. According to Navarro et al. (2022).

Holotype of Khunnuchelys lophorhothon sp. nov. from Baybishe, northeastern Aral Sea region, Kazakhstan, Bostobe Formation, Santonian–early Campanian, Late Cretaceous, ZIN PH 5/55, a partial skull; in dorsal (A), ventral (B), lateral (C), and anterior (D) views. Photographs (A1–D1), explanatory drawings (A2–D2).

MRF 319, a partial oviraptorosaurian skeleton referred to Anzu wyliei. (A) Skeletal reconstruction in left lateral view, with preserved bones in gray and bones represented in other Anzu specimens in white (hatching indicates heavily reconstructed portions of the ilia of CM 78001). Middle-posterior (ninth?) cervical vertebra in (B) anterior, (C) left lateral, and (D) dorsal views. Posterior (11th?) cervical vertebra in (E) anterior, (F) left lateral, and (G) dorsal views. Posterior (12th?) cervical vertebra in (H) anterior, (I) left lateral, and (J) dorsal views. Anteroposteriorly crushed left radius in lateral (K) and anterior (L) views. Mediolaterally crushed left ulna in lateral (M) and anterior (N) views. (O) Partial left scapulocoracoid in lateral view. Dorsal rib in anterior (P) and posterior (Q) views. Abbreviations: acr, acromial process; cr, cervical rib; dip, distal processes; pat, pathology; pf, pneumatic fossa. Scale bars = 50 cm in A; 1 cm in B–Q.

MRF 319, a partial oviraptorosaurian skeleton referred to Anzu wyliei. Skeletal reconstruction in left lateral view, with preserved bones in gray and bones represented in other Anzu specimens in white (hatching indicates heavily reconstructed portions of the ilia. Scale bar = 50 cm (19.7 in)

Unidentified Platecarpus sp. partial skeleton at the Natural History Museum in London, England.

Unidentified Platecarpus sp. partial skeleton at the Natural History Museum in London, England.

Rendition of possible appearance of the dinosaur genus Nyasasaurus from the Middle Triassic, possibly the earliest known dinosaur. Black portions represent the partial skeletal fragments (a humerus and six vertebrae) from one specimen blue portions represent fragments from a second specimen (three cervical vertebrae) on which the current likely form of the animal is based.

Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view. Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).

Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view. Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).

Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view. Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).