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Fig. 7. Representative theropod dinosaur teeth from the J&M in New Late Cretaceous microvertebrate assemblage from the Campanian-Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications
Fig. 7. Representative theropod dinosaur teeth from the J&M site, Colorado, USA, Williams Fork Formation, Campanian–Maastrichtian, Upper Cretaceous. A. cf. Richardoestesia sp., MWC 8865, tooth crown in labial view (A1), mesial (A2) and distal (A3) serration detail views. B. Dromaeosauridae indet., MWC 8872, tooth crown fragment in lingual (B1), distal (B2) and mesial (B3) serration detail views. C. Hadrosauridae indet., MWC 8896, tooth crown in occlusal (C1) and lateral (C2) views.
Fig. 4 in Allometric growth in the frontals of the Mongolian theropod dinosaur Tarbosaurus bataar
Fig. 4. Bivariate allometric results of different parts of Tarbosaurus bataar frontals. A. Length of the frontal between prefrontonasal process and the frontoparietal suture (pfn-pl length, 4) and the width of the nasal process (np width, 1). B. Width of the frontal between medial edge of the orbital slot and the midline (os-mid width, 5) and the width of the nasal process (1). C. Length of the frontal between prefrontonasal process and the frontoparietal suture (4) and the width of the prefrontal suture (prf width, 2). D. Width of the frontal between medial edge of the orbital slot and the midline (5) and the width of the prefrontal suture (2). E. Length of the frontal between prefrontonasal process and the frontoparietal suture (4) and the width of the lacrimal socket (ls width, 3). F. Width of the frontal between medial edge of the orbital slot (5) and the midline and the width of the lacrimal socket (3).
Fig. 3 in Allometric growth in the frontals of the Mongolian theropod dinosaur Tarbosaurus bataar
Fig. 3. Bivariate allometric results of different parts of Tarbosaurus bataar frontals. A. Width of the frontal between medial edge of the orbital slot and the midline (os-mid width, 5) and the depth of the frontal at the region that is immediately anterior to the most anterior point of the sagittal crest (depth, 9). B. Length of the frontal between prefrontonasal process and the frontoparietal suture (pfn-pl length, 4) and the depth of the frontal at the region that is immediately anterior to the most anterior point of the sagittal crest (9). C. Width of the frontal between medial edge of the orbital slot and the midline (5) and the length of the frontal between prefrontonasal process and the frontoparietal suture (4). D. Length of the frontal between prefrontonasal process and the frontoparietal suture (4) and the width of the frontal between the most lateral point of the posterior shelf and the midline (cds-mid width, 6). E. Length of the frontal between prefrontonasal process and the frontoparietal suture (4) and the brain length (8). F. Length of the frontal between prefrontonasal process and the frontoparietal suture (4) and the width of the frontal between medial edge of the orbital slot and the midline (5). G. Length of the frontal between prefrontonasal process and the frontoparietal suture (4) and the width of the frontal between the most lateral point of the posterior shelf and the midline (6). H. Width of the frontal between the most lateral point of the posterior shelf and the midline (6) and the width of the frontal between medial edge of the orbital slot and the midline (5).
Fig. 6. A in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 6. A. Strict consensus tree of 100 most parsimonious trees (CI = 0.238; RI = 0.538; L = 1089) recovered in the cladistic analysis of the dentition-based data matrix with an unconstrained search. B. Strict consensus tree of 100 most parsimonious trees (CI = 0.238; RI = 0.609; L = 669) recovered in the cladistic analysis of the tooth-crown-based data matrix.
Fig. 7 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 7. Results of the discriminant analysis performed at the "group"-level on the whole dataset along the first two canonical axes of maximum discrimination in the dataset with personal measurements of CH (A) and teeth larger than two centimeters (B). A. For 400 teeth belonging to 46 theropod taxa and 12 groupings (PC1 and PC2 account for 38.08% and 30.78% of the total variance, respectively). B. For 725 teeth belonging to 53 theropod taxa and 13 groupings (PC1 and PC2 account for 47.39% and 27.61% of the total variance, respectively). Abbreviations: AL, apical length; CBL, crown base; CBW, crown base width; CH, crown height; MCL, mid crown length; MCW, mid-crown width; MSL, mesial serrated carina length.
Fig. 4 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 4. Abelisaurid tooth of Morphotype III (IIPG-06) from "Dino 1" site (S 39°08'; W 67°40'), Paso Córdoba locality, 14 km southwest of the town of General Roca, Río Negro Province; Allen Formation (middle Campanian–early Maastrichtian, Upper Cretaceous); in labial (A1), lingual (A2), mesial (A3), distal (A4), apical (A5), and basal (A6) views; detail of the distal denticles at the apical three-fourths of the crown height (A7).
Fig. 3 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 3. Abelisaurid tooth of Morphotype II (IIPG-09) from "Dino 1" site S 39°08'; W 67°40'), Paso Córdoba locality, 14 km southwest of the town of General Roca, Río Negro Province; Allen Formation (middle Campanian–early Maastrichtian, Upper Cretaceous); in labial (A1), lingual A2), mesial (A3), distal (A4), apical (A5), and basal (A6) views; detail of the crown apex (A7).
Fig. 1 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 1. Location maps of the study area within the Neuquén Basin (A, B). Geological map indicating the different units recognized in Paso Córdoba (Argentina), star marks collecting of specimens (C). Field photos of the excavation of specimens (D, E).
Fig. 8 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 8. One of the paleoecological interpretations of the Paso Córdoba site. Theropods scavenging the carcass of a sauropod. Artwork by Jorge González, San Salvador de Jujuy, Argentina.
Fig. 5 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 5. Strict consensus tree of two most parsimonious trees (CI = 0.198; RI = 0.457; L = 1314) recovered in the cladistic analysis of the dentition-based data matrix with constrained search and setting the three morphotypes as floating terminals.
Fig. 2 in Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
Fig. 2. Abelisaurid tooth of Morphotype I (IIPG-02) from "Dino 1" site (S 39°08'; W 67°40'), Paso Córdoba locality, 14 km southwest of the town of General Roca, Río Negro Province; Allen Formation (middle Campanian–early Maastrichtian, Upper Cretaceous); in labial (A1), lingual (A2), mesial (A3), distal (A4), apical (A5), and basal (A6) views; detail of marginal undulations (A7); mesial (A8) and distal (A9) denticles at the apical three-fourths of the crown height; detail of the mesial denticles at the apical three-fourths of the crown height (A10). Abbreviations: cs, concave surfaces; mca, mesial carina; dca, distal carina; sps, spalled surface; ids, interdenticular sulcus; idsp; interdenticular space.
Figure 12 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 12. Right manual ungual phalanx of digit I in A,C, ventral, and B,D, lateral views. A-B, Megaraptor; C-D, Australovenator and schematic representation in E,G, ventral, and F,H, lateral views. E-F, Megaraptor; G-H, Australovenator. Scale bar: 2 cm. Abbreviations: ff, flexor facets.
Figure 10. Right manual phalanx 1 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 10. Right manual phalanx 1 of digit I in ventral view and schematic representations of Megaraptor (A, C), Australovenator (B,D). Scale bar: 2 cm. Note the well-developed longitudinal ventral furrow.
Figure 9 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 9. Proximal end of right phalanx I.1 of A, Megaraptor; B, Australovenator; C, Allosaurus; D, Tyrannosaurus (modified from Brochu, 2003); and E, Deinonychus (modified from Ostrom, 1969). Not to scale.
Figure 6 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 6. Left manus in dorsal view of A, Dilophosaurus (modified from Welles, 1980); B, Allosaurus; C, Megaraptor; D, Sinocalliopteryx; E, Tanycolagreus (modified from Carpenter et al., 2005); F, Deinonychus (modified from Ostrom, 1969); G, Scipionyx (modified from Dal Sasso and Maganuco, 2011); H, Guanlong (modified from Xu et al., 2009); and I, Sinosauropteryx (modified from Currie and Chen, 2001). Not to scale.
Figure 11 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 11. Right manual ungual phalanx of digit I in ventral view and schematic representation of Megaraptor (A,C); and Australovenator (B,D). Not to scale.
Figure 8. A-C in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 8. A-C, left first metacarpal in dorsal view of A, Megaraptor, B, Australovenator, and C, Rapator; D-F, proximal view of left metacarpus of D, Guanlong (modified from Xu et al.,2009), E, Tanycolagreus (modified from Carpenter et al., 2005), and F, Deinonychus (modified from Ostrom, 1969); G-H, proximal view of right first metacarpal of G, Rapator, and H, Australovenator. Not to scale. Abbreviations: pdp, proximomedial process; vpI, ventral process of metacarpal I; vpII, ventral process of metacarpal II.
Figure 7. Right metacarpals II and I in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 7. Right metacarpals II and I in dorsal view of A, Acrocanthosaurus (modified from Currie and Carpenter, 2000); B, Torvosaurus (modified from Galton and Jensen, 1979); C, Megaraptor; D, Deinonychus (modified from Ostrom, 1969); E, Guanlong (modified from Xu et al., 2009). Not to scale. Abbreviations: ep, extensor pit; pdp, proximomedial process; ps, proximolateral surface.
Figure 5 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 5. Left "semilunate" carpal in proximal (upper row) and dorsal (lower row) of A, Allosaurus, B, Acrocanthosaurus (modified from Currie and Carpenter, 2000); C, Megaraptor; D, Guanlong (modified from Xu et al., 2014); E, Ornitholestes (mofiied from Carpenter et al., 2005); F, Tanycolagreus (modified from Carpenter et al., 2005); G, Alxasaurus (modified from Xu et al., 2014); H, Deinonychus (modified from Ostrom, 1969); and I, Australovenator (modified from White et al., 2012). Not to scale. Abbreviations: ag, anterior groove; dp, distal projections.
Figure 3 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy
Figure 3. Left manus of Megaraptor namunhuaiquii (MUCPv 341) in dorsal view (A) and schematicrepresentation (B). Scale bar: 1 cm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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.