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441 results for “Maastrichtian”
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 19 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 19. Diagram of the results of a quantitative reconstruction of a growth series of five Tyrannosaurus rex specimens.
Figure 15 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 15. Dorsal skull roof of LACM 23845. Left frontal in lateral (A), medial (B), dorsal (C), and ventral (E) views; right frontal in dorsal (D) view; parietals in rostral (F), left lateral (G), dorsal (H), and ventral (I) views; nuchal crest in right lateral (J), left lateral (K), caudal (L), and rostrodorsal (M) views.
Figure 11 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 11. Facial bones of LACM 23845. Left maxilla in lateral view (A); right lacrimal in dorsal (B), lateral (C), and ventral (D) views; left quadratojugal in lateral (E) and medial (F) views; squamosal process of right quadratojugal in lateral (G) and medial (H) views, and the jugal process of the right quadratojugal in lateral (I) and medial (J) views.
Figure 9 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 9. Nasals of LACM 23845 in right lateral (A), dorsal (B), left lateral (C), and ventral (D) views.
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 12 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 12. Comparison of the quadratojugal of LACM 23845 with other tyrannosaurids in left lateral view. AMNH 5027 modified after Osborn (1912) and PIN 551–2 after Maleev (1974).
Figure 8 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 8. Comparison of the dorsal skull roof of LACM 28345 with other tyrannosaurids. AMNH 5027 modified after Osborn (1912) and CMN 8506 modified 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 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 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 13 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 13. Comparison of the surangular of LACM 23845 with other tyrannosaurids in left lateral view. AMNH 5027 modified after Osborn (1912) and CMN 8506 after Russell (1970).
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 1 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 1. Facial bones of LACM 28471. Snout in dorsal view (A); frontal process of nasals in dorsal (B) and ventral (C) views; snout in left lateral (D) and right lateral (E) views, and the nasal process of the right maxilla in lateral (F) and medial (G) views.
Figure 2 in Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America
Figure 2. Dorsal skull roof of LACM 28471. Left frontal (A) and right frontal (B) in dorsal view; joint surface of the parietal in caudal view (C); joint surface of the postorbital in lateral view (D) and cross section of this contact (E); left frontal in ventral (F) and lateral (G) views and cross section through the orbit (H); parietals in left lateral (I), rostral (J), right lateral (K), dorsal (L), and ventral (M) views; nuchal crest fragment in rostral (N), dorsal (O), and caudal (P) views.
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 First Cretaceous teleostean otolith assemblage (Arkadelphia Formation, upper Maastrichtian) from Arkansas, USA, early Gadiformes, and the Western Interior Seaway
Figure 7. Otoliths from the Cretaceous Arkadelphia Formation. All specimens unless otherwise noted are inner views of right sagittae. Length in mm. A. Apateodus crenellatus? Schwarzhans and Stringer (2020b), DMNH 2021-09-17, 1.78 mm. B. Palaeogadus? belli sp. nov., DMNH 2021-09-18, 1.25 mm (paratype). C. Palaeogadus? belli sp. nov., DMNH 2021-09-19, 1.78 mm (paratype). D. Palaeogadus? belli sp. nov., 2021-09-20, 2.21 mm (paratype). E. Palaeogadus? belli sp. nov., DMNH 2021-09-21, 2.34 mm (paratype). F. Palaeogadus? belli sp. nov., DMNH 2021-09-22, 3.13 mm (holotype). G. Palaeogadus? belli sp. nov., DMNH 2021-09-22, 3.13 mm (holotype, outer view). H Palaeogadus? belli sp. nov., DMNH 2021-09-22, 3.13 mm (holotype, dorsal view).
Figure 5 in First Cretaceous teleostean otolith assemblage (Arkadelphia Formation, upper Maastrichtian) from Arkansas, USA, early Gadiformes, and the Western Interior Seaway
Figure 5. Otoliths from the Cretaceous Arkadelphia Formation. All specimens unless otherwise noted are inner views of right sagittae. Length in mm. A. Elops sp., DMNH 2021-09-01, 1.89 mm. B. Albuliformes indeterminate, DMNH 2021-09-02, 1.42 mm. C. Elopothrissus sp. DMNH 2021-09-03, 1.83 mm. D. Genartina sp. DMNH 2021-09-04, 0.85 mm. E. Osmeroides sp. DMNH 2021-09-05, 3.85 mm. F. Anguilla? chickasawae Schwarzhans and Stringer (2020b), DMNH 2021-09-6, 1.90 mm. G. Echiophis aff. E. semisphaeroides Schwarzhans (2003), DMNH 2021-09-07, 3.25 mm. H. Muraenanguilla? sp. DMNH 2021-09-08, 2.18 mm.
Figure 8 in First Cretaceous teleostean otolith assemblage (Arkadelphia Formation, upper Maastrichtian) from Arkansas, USA, early Gadiformes, and the Western Interior Seaway
Figure 8. Otoliths from the Cretaceous Arkadelphia Formation. All specimens unless otherwise noted are inner views of right sagittae. Lapilli are macular views. Length in mm. A. Palaeogadus cf. P. weltoni Schwarzhans and Stringer (2020a), DMNH 2021-09- 23, 1.46 mm. B. Gadiformes indeterminate, DMNH 2021-09-24, 1.56 mm. C. Tippaha mythica Schwarzhans and Stringer (2020a), DMNH 2021-09-25, 3.85 mm. D. Eutawichthys maastrichtiensis Nolf and Stringer (1996), DMNH 2021-09-26, 3.93 mm. E. Eutawichthys zideki Nolf and Stringer (1996), DMNH 2021-09-27, 1.42 mm. F. Eutawichthys cf. E. stringeri Schwarzhans, Huddleston, and Takeuchi (2018b), DMNH 2021-09-28, 1.85 mm. G. Ampheristus cf. A. americanus Schwarzhans and Stringer (2020a), DMNH 2021-09-29, 1.58 mm. H. Protobythities brzobohatyi Schwarzhans (2010), DMNH 2021-09-30, 1.68 mm. I. Lapillus type 1, DMNH 2021-09-31, 2.98 mm.
Figure 2 in First Cretaceous teleostean otolith assemblage (Arkadelphia Formation, upper Maastrichtian) from Arkansas, USA, early Gadiformes, and the Western Interior Seaway
Figure 2. Regional map of otolith-bearing Cretaceous sites mentioned in the text. Dashed line shows approximate shoreline during the late Maastrichtian (Roberts and Kirschaum 1995, Dastas et al. 2014, Stringer and Sloan 2018).
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.