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671 results for “Tyrannosaurus”
FIGURE 34 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 34. FMNH PR2081, Tyrannosaurus rex. Right anterolateral view of braincase as seen through the right orbit. Abbreviations in Appendix 1. Photograph by J. Weinstein.
FIGURE 33 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 33. Digital endocast for FMNH PR2081, Tyrannosaurus rex. A, Stereopair of endocast in ventrolateral view. B, Stereopair of endocast in dorsolateral view. Line interpretations of endocast in ventrolateral (C) and dorsolateral (D) view. Cranial nerves indicated with Roman numerals; note separation between ophthalmic (V1) and maxillo-mandibular (V2, 3) branches of the trigeminal nerve. The left facial (VII) and vestibular statoacoustic (VIII.v) are shown. Abbreviations in Appendix 1. Drawings by M. Donnelly.
FIGURE 29 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 29. Braincase of RTMP 94.143.1 (immature Daspletosaurus torosus). Most of the parasphenoid rostrum and left laterosphenoid have been removed; the endocranial cavity (cav) is visible. Abbreviations in Appendix 1.
FIGURE 28 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 28. Braincase of AMNH 5117 (Tyrannosaurus rex). A, Anterior view, focusing on optic foramen (II) and pituitary fossa. B, Left anterolateral view, showing relationship between openings for trochlear (IV) and trigeminal (V) nerves through the laterosphenoid and prootic. C, Right lateral view, focusing on openings within prootic and opisthotic. Abbreviations in Appendix 1.
FIGURE 27 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 27. FMNH PR2081, Tyrannosaurus rex. Left epipterygoid. A, element as seen through restored left orbit. B, Dorsal tip of element viewed while left postorbital and squamosal were removed during preparation. C and D, left lateral and anterolateral views of epipterygoid, again with left postorbital and squamosal removed. See Appendix 1 for abbreviations.
FIGURE 24 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 24. FMNH PR2081, Tyrannosaurus rex. Isolated left squamosal in medial (A) and lateral (B) view. C, Ventromedial view of posterior tip, showing fossa for reception of quadrate head. D, Ventral view, showing squamosal recess. See Appendix 1 for abbreviations. Scale = 5 cm.
FIGURE 48 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 48. FMNH PR2081, Tyrannosaurus rex. Cervical vertebrae (p2 through p9), anterior view. A is axis. Scale = 15 cm. See Appendix 1 for abbreviations. Photographs by J. Weinstein.
FIGURE 22 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 22. FMNH PR2081, Tyrannosaurus rex. Sagittal CT section of braincase close to midline. See Appendix 1 for abbreviations.
FIGURE 80 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 80. FMNH PR2081, Tyrannosaurus rex. Right scapulocoracoid in lateral (A) and medial (B) view; left scapulocoracoid in medial (C) and lateral (D) view. Scale = 30 cm. Abbreviations in Appendix 1. Photographs by J. Weinstein.
FIGURE 32. A in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 32. A, Horizontal slice through endocranial cavity of FMNH PR2081, Tyrannosaurus rex. Slice was taken halfway between those of Figures 31C and 31D, and shows exit foramina for the third and fourth cranial nerves exiting in close proximity within a depression on the surface of the laterosphenoid. B, Sagittal CT slice through FMNH PR2081, approximately 2 cm to the left of the midsagittal plane, showing close apposition of exit foramina for third and fourth cranial nerves. Abbreviations in Appendix 1.
FIGURE 20 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 20. FMNH PR2081, Tyrannosaurus rex. Detail of interorbital region in dorsal view, showing sutural relationships. Photograph at left, line interpretation of sutures on right. See Appendix 1 for abbreviations.
FIGURE 16 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 16. FMNH PR2081, Tyrannosaurus rex. CT slice through rostrum (see C), showing penetration of third right dentary tooth into vomer. Resulting hole can be seen in Figure 3.
FIGURE 18 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 18. FMNH PR2081, Tyrannosaurus rex. Posterior extent of vomers, as shown in a photograph of a cast of the skull (A) in left posterolateral view, through the orbit and infratemporal fenestra (the postorbital has been removed); and (B) in a coronal CT slice. See Appendix 1 for abbreviations.
FIGURE 14 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 14. Internal morphology of Tyrannosaurus rex maxilla. A, MOR 555, left maxilla in medial view. Arrows show passage of caudal antromaxillary fenestra and promaxillary fenestra. B, Generalized cartoon of medial surface of left maxilla (based in part on Osborn, 1912:fig. 23), showing approximate extent of medial wall of maxillary antrum. The ridge for attachment of this wall over the maxillary fenestra can be seen in A. See Appendix 1 for abbreviations.
FIGURE 31 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 31. Horizontal slices through the endocranial cavity of FMNH PR2081, Tyrannosaurus rex. Each slice is 0.5 mm thick; spacing between slices is 5 mm, with the dorsalmost slice at A and ventralmost at F. Broad separation of the ophthalmic (V1) and maxillary-mandibular (V2,3) branches of the trigeminal nerve can be seen. Abbreviations in Appendix 1.
FIGURE 25 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 25. FMNH PR2081, Tyrannosaurus rex. Quadrate pneumaticity. A, Ventral view of left quadrate, showing external appearance of condylar and quadrate recesses. B, Sagittal slice through right quadrate showing divergence of quadrate and condylar recesses. C, Horizontal slice through right quadrate showing same divergence. See Appendix 1 for abbreviations.
FIGURE 19 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 19. FMNH PR2081, Tyrannosaurus rex. A, Dorsolateral view through right antorbital fenestra, showing right palatine and associated structures. B, CT slice through skull (see C for plane of section), passing through palatine at level of foramen for palatine recess. See Appendix 1 for abbreviations. Photograph by J. Weinstein.
FIGURE 44 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 44. FMNH PR2081, Tyrannosaurus rex. Coronal CT sections through right jaw. Slices go from anterior (A) to posterior (C) and are separated by 1.4 cm each. A small channel (saf2) extends from the surangular channel to the articular antrum. Abbreviations in Appendix 1.
FIGURE 13 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 13. FMNH PR2081, Tyrannosaurus rex. Internal morphology of maxilla from coronal CT imagery. A, Slice through promaxillary recess anterior to promaxillary fenestra. B, Slice through promaxillary fenestra. C, Slice through maxillary fenestra. D, Slice immediately behind maxillary fenestra, passing through caudal antromaxillary fenestra. E, Cartoon showing approximate location of each slice. See Appendix 1 for abbreviations.
FIGURE 12 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 12. FMNH PR2081, Tyrannosaurus rex. A, Cartoon of lateral view of skull showing distribution of alveolar and circumfenestral rows of mental foramina. B, Closeup of single mental foramen from right maxilla, showing imprint of ramifying nerve.
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