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133 results for “Tyrannosauridae”
Figure 8. A in Functional morphology of neck musculature in the Tyrannosauridae (Dinosauria, Theropoda) as determined via a hierarchical inferential approach
Figure 8. A, lateral view of m. longus colli dorsalis pars cranialis (m. l.c.d. cranialis), m. longus colli dorsalis pars caudalis (m. l.c.d. caudalis) and mm. intertransversarii (mm. intertrans.) of Cygnus columbianus. Note posterior slips contributing to m. l.c.d. cranialis, ventrally inserting heads of m. l.c.d. caudalis and multiple tendinous divisions of all mm. intertrans. B, left m. transversospinalis cervicis (m. trans. cerv., outlined in grey) of Caiman crocodylus, inserts by a white tendon onto C1. M. spinocapitis posticus (m. sp. cap. post.) and m. longissimus capitis superficialis (m. long. cap. sup., with part of surrounding fascia left on) are also outlined in grey. Superficial muscles have been removed.
Figure 5 in Functional morphology of neck musculature in the Tyrannosauridae (Dinosauria, Theropoda) as determined via a hierarchical inferential approach
Figure 5. Attachments of muscles inserting on the occiput of birds. A, posterior cervical vertebrae of Strutio camelus, showing osteological origin of posterior belly of m. biventer cervicis. B, anterior cervical vertebrae of Haliaeetus leucocephalus, with origins of m. complexus, m. splenius capitis and m. rectus capitis dorsalis (outlined). M. complexus originates from the epipophyses dorsally (as in Haliaeetus leucocephalus), and sometimes the lateral tubercles ventrally. For adjoining origins of m. complexus and m. rectus capitis dorsalis from the lateral tubercles, the latter is the anterior of each pair. C, occiput of Struthio camelus, depicting all insertions. In Struthio camelus and many other birds m. splenius capitis lateralis inserts laterally onto the occiput, but in other birds part of m. complexus inserts here.
Figure 15 in Functional morphology of neck musculature in the Tyrannosauridae (Dinosauria, Theropoda) as determined via a hierarchical inferential approach
Figure 15. Photographic-style representation of Tyrannosaurus rex (AMNH 5027) neck muscles, with definitive osteological correlates, visible in lateral view. A–C represent successively deeper layers. Varying hues represent transversospinalis, longissimus, iliocostalis and longus derivatives derivatives, respectively. Some muscles are omitted for clarity, including mm. interspinales between neural spines, and m. iliocostalis cervicis that inserted medially on the cervical ribs. M. transversospinalis capitis and cervicis, and m. longissimus capitis superficialis, are drawn as gradients to show tendinous anterior insertions. M. transversospinalis capitis is depicted as reflected downwards to show epipophyses of several vertebrae, to which it would insert and/or posterior parts of M. complexus would originate. M. iliocostalis capitis is rendered as having individual slips that arose from heads of the cervical ribs, one interpretation of this muscle's osteological origins. M. rectus capitis ventralis originates from the ventral surfaces of the anterior cervicals, and is restored here as passing medial to the anterior cervical ribs. The skull has been displaced slightly anteriorly, to compensate for an anteroposteriorly compressed C1 in this specimen.
Figure 16 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 16. Right otoccipital of LACM 23845 in lateral (A) and medial (B) views; quadrate process of the left pterygoid in lateral (C) and medial (D) views.
Figure 5 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 5. Comparison of the right dentary (reversed) of LACM 28471 with those of other tyrannosaurid juveniles.
Figure 3 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 3. Mandibular bones of LACM 28471. Right surangular in lateral (A), dorsal (B), and ventral (C) views; left (D) and right (E) dentaries in lateral view with diagrammatic cross sections of teeth. Cross sections are not to scale.
Figure 4 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 4. Diagrammatic sketches of cross sections of the dentition of LACM 28471 in comparison with that of another juvenile Tyrannosaurus rex (CMNH 7541). Numbers indicate alveolus position from mesial to distal.
Figure 7 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 7. Comparison of tyrannosaurid snouts in dorsal view, showing the appressed state of the nasal processes of the premaxilla in Tyrannosaurus rex. AMNH 5027 modified after Osborn (1912), CMN 8506 modified after Russell (1970).
Figure 10 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 10. Comparison of the lacrimonasal articulation of LACM 23845 with other tyrannosaurids in left lateral view. AMNH 5027 modified after Osborn (1912), PIN 551–1 after Maleev (1974), and CMN 8506 after Russell (1970).
Figure 6 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 6. Comparison of the snouts of tyrannosaurids in left lateral view showing the contact of the antorbital fossa and nasal suture among tyrannosaurids. AMNH 5027 modified after Osborn (1912), CMN 8506 modified after Russell (1970).
FIGURE 16 in A review of Tyrannosauridae (Dinosauria, Coelurosauria) from New Mexico
FIGURE 16. Examples of tyrannosaurid caudal vertebrae. A-D, NMMNH P-27287, proximal caudal vertebra in A, right lateral, and B, left lateral caudal vertebra in C, lateral and D, left lateral views. E-F, NMMNH P-28923, distal caudal vertebra in E, left lateral and F, lateral views. Scale bar equals 10 cm in A-D; 5 cm in E-F.
Figure 10. A in Functional morphology of neck musculature in the Tyrannosauridae (Dinosauria, Theropoda) as determined via a hierarchical inferential approach
Figure 10. A, several muscles of Pelicanus occidentalis, disseted in lateral view. Abbreviations are as in the main text. Several slips of m. rectus capitis dorsalis (m. r.c.d.) converge ventrally, towards tendinous insertions on the basioccipital tuberosities. M. complexus has an unusual lateral, tendinous insertion. B, posterolateral view of m. longissimus capitis superficialis (outlined in dark grey) of Alligator mississippiensis. The posterior origin and the insertion are tendinous. M. iliocostallis capitis (m. il. cap.) is depicted, and m. constrictor colli has not been dissected away. The neck is slightly dorsiflexed in this view .
Figure 18 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 18. Right dentary of LACM 23845 in lateral (A) and medial (B) views.
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