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Fig. 12 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 12. Australian water lizard, "Lesueur's lizard" (Physignathus lesueurii Gray), Queensland variety, family Agamidse, from instantaneous photograph of running pose.

Fig. 3a in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 3a. (A1-A3). Genotype specimen of Ornithomimus velox Marsh. Yale Mus. 542. (A1), dorsal aspect of the type left pes, superior aspect of Metatarsals II-IV. (A2) posterior aspect (upper) and exterior aspect (lower) of metatarsals II-IV. (A3) Type tibio-tarsus, anterior, inferior, posterior aspects. (B) Portion of right manus of another individual (Yale. Mus. 548) associated by Marsh with Ornithomimus velox; (upper) metacarpals I-III as they appear in the matrix, (lower) as placed in natural position. (C) Left pes of Struthiomimus altus, genotype specimen, Amer. Mus. 5339. Anterior and exterior aspects of digits II-V. One fourth natural size. After original drawings by the present author. One-fourth natural size.

Fig. 3 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 3. Composition of complete manus (B) palmar view of Ornitholestes hermanni. Amer. Mus. 587, partly restored (Digit I) from Amer. Mus. 619, type. One half natural size. Manus of Struthiomimus altus, Amer. Mus. 5339. (A), dorsal aspect; A', palmar aspect, r, radiale, i, intermedium (?) coalesced with cc, centrale. Cl, C2, p. C3 carpalia and (?) p. tendinous ossicle. One third natural size.

Fig. 1 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 1. Reconstructed skull of type of Ornitholestes hermanni, Amer. Mus. No. 619, replacing the original figure (1903). Two-thirds natural size.

Fig. 11 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 11. Left pes of Struthiomimus alias, Amer. Mus. 5339. Internal, posterior, anterior, external aspects. Mts. II, III, IV, with three functional digits, Mts. V reduced. Two-ninths natural size. Compare Fig. 3a. *

Fig. 15 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 15. Restorations of Struthiomimus altus. C Herbivorous, tree-browsing pose, suggested by Osborn. D Carnivorous, shore-living pose, hunting for Crustacea and small Mollusca, suggested by Barnum Brown. One-fortieth natural size.

Fig. 13 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 13. Frilled lizard Chlamydosaurus, family Agamidae. Instantaneous photograph of swift running pose. After Saville Kent.

Fig. 6 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 6. Detail of the actual arrangement of the abdominal ribs in Struthiomimus altus, Amer. Mus. 5339, as preserved on the left side of the thorax. One-fifth natural size.

Fig. 17 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 17. Tyrannosaurus and Struthiomimus mounted skeletons, reproduced to same scale, about one-seventy-fifth natural size, and showing relative size and proportions of the fore and hind limbs.

Fig. 8 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 8. Fore and Hind limb bones, H, U, R, of Struihiomimus altus, Amer. Mus. 5339, to same scale. Palmar aspect of left fore limb. F Left femur, internal aspect. T Left tibio-tarsus, internal aspect. All figures two-ninths natural size. Manus more correctly drawn in Fig. 3.

Fig. 19 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 19. Sacro-pelvic arcade of Tyrannosaurus rex of the genotype specimen Amer. Mus. 973, discovered in Hell Creek, Montana, in 1904. A, Sacral aspect of the right ilium showing the respective attachments of the five sacrals S 1-5. B, Left lateral aspect of the sacrum, exhibiting centra of S 1-5, also the sacral rib attachments S 1-5 to the inner aspect of the left ilium. C, Anterior aspect of the sacro-iliac arcade, SI, the first sacral vertebra. D, Posterior aspect of the sacro-iliac arcade showing S5, the fifth sacral. All figures one fifteenth natural size.

Fig. 2 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 2. Incomplete manus of Ornitholestes hermanni; Digit I is missing in this specimen. Amer. Mus. No. 587. Palmar (A) and internal (B) views, one-half natural size. After Osborn, 1903.

Fig. 21 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 21. Humerus and femur of Tyrannosaurus rex, type specimen Amer. Mus. 973. One-fifteenth natural size. B Humerus in three aspects, (1) posterior, (2) exterior, (3) anterior. A1 right femur, internal aspect, A2 the same, anterior aspect, A3 the same, posterior aspect. One-fifteenth natural size.

Anterior, lateral, and posterior aspects of the mounted skeleton of Tyrannosaurus rex, chiefly from Amer. Mus. 5027, partly from the type specimen Amer. Mus. 973. The sternal ribs are not restored. The structure of the manus is unknown as yet; the restoration of the digits is conjectural. About natural size. in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Anterior, lateral, and posterior aspects of the mounted skeleton of Tyrannosaurus rex, chiefly from Amer. Mus. 5027, partly from the type specimen Amer. Mus. 973. The sternal ribs are not restored. The structure of the manus is unknown as yet; the restoration of the digits is conjectural. About natural size.

Fig. 14 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 14. Restorations of Struthiomimus altus, Amer. Mus. 5339. A Running pose suggested by Osborn. B Insectivorous theory, anthill-attacking pose suggested by C. William Beebe. One-fortieth natural size.

Fig. 16 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 16. Running pose of Struthiomimus, with a rudimentary patagium as suggested by W. K. Gregory. One-fortieth natural size.

Fig. 20 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 20. Comparative views of the sacro-iliac arcade in Tyrannosaurus rex. To the right, superior and inferior views of the type specimen Amer. Mus. 973. To the left, inferior view of the second specimen, Amer. Mus. 5027, including dorsals, D12, 13, also the first caudal, Cl. S2, S2-5 are strongly crushed laterally, deforming their proportions.

Fig. 18 in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 18. Mounted skeleton of Tyrannosaurus rex Osborn, anterior and lateral views. One-sixtieth natural size. The structure of the manus is conjectural. The other parts are mounted by combination of the skeletons Amer. Mus. Nos. 5027, 973. The sternal ribs are omitted. The manus is represented as tridactyl, but it may be didactyl.

Fig. 17a in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Fig. 17a. Vertebral centrum of Manospondylus gigas Cope, type, Amer. Mus. Cope Coll. 3982. One-fourth natural size. After Hatcher, 1907.

Skeleton of Struthiomimus altus. Genotype specimen, Amer. Mus. 5339. One-tenth natural size In this panel mount the animal is placed approximately as found. The pollex is too closely appressed to the other digits, see Fig. 3. in Skeletal Adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus

Skeleton of Struthiomimus altus. Genotype specimen, Amer. Mus. 5339. One-tenth natural size In this panel mount the animal is placed approximately as found. The pollex is too closely appressed to the other digits, see Fig. 3.