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58 results for “Neopterygii”
FIGURE 6 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 6. Tlayuamichin itztli gen. et sp. nov. Detailed photograph of the skull in IGM 6716 (holotype). Scale bar equals = 50 mm.
FIGURE 8 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 8. Tlayuamichin itztli gen. et sp. nov. Detailed photograph of the skull in IGM 6720. Scale bar equals = 45 mm.
FIGURE 4 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 4. Tlayuamichin itztli gen. et sp. nov. Specimen IGM 6719 preserved in right lateral view. Scale bar equals 50 mm.
FIGURE 11 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 11. Tlayuamichin itztli gen. et sp. nov., jaws in IGM 6719. A, photograph; B, line drawing. Note that the retroarticular bone is a little displaced posteriorly. Scale bar equals = 10 mm.
FIGURE 3 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 3. Tlayuamichin itztli gen. et sp. nov. A, Specimen IGM 6717 preserved in right lateroventral view. B, specimen IGM 6718 preserved in right lateral view. Scale bars equal 70 mm.
FIGURE 2 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 2. Tlayuamichin itztli gen. et sp. nov. Holotype (IGM 6716) preserved in left lateral view. Standard length of the specimen = 403 mm. Scale bar equals 70 mm.
FIGURE 7 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 7. Tlayuamichin itztli gen. et sp. nov. Line drawing of the skull in IGM 6716 (holotype). Scale bar equals = 50 mm.
FIGURE 13 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 13. Tlayuamichin itztli gen. et sp. nov. Detailed photograph of: A, the dorsal fin in IGM 6718; B, the anal fin in IGM 6718. Scale bars equal = 20 mm.
FIGURE 12 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 12. Tlayuamichin itztli gen. et sp. nov., detailed photograph of the anterior part of the skull preserved in ventral view in IGM 6717. Scale bar equals = 10 mm.
FIGURE 10 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 10. Tlayuamichin itztli gen. et sp. nov., ethmoidal region of the skull in IGM 6716 (holotype) showing the paraethmoids as indicated in Figure 7 (labeled as "pet"). Scale bar equals = 10 mm.
FIGURE 5 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 5. Tlayuamichin itztli gen. et sp. nov. Specimen IGM 6720 preserved in right lateral view. Scale bar equals = 50 mm.
FIGURE 15 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico
FIGURE 15. Tlayuamichin itztli gen. et sp. nov. Detailed photograph of: A, the dorsal ridge scales in IGM 6719; B, several partially articulated scales in IGM 6717 showing the well-developed articular, anterodorsal and anteroventral processes. Scale bars equal = 10 mm.
FIG. 7 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 7. {Lophionotus kanabensis from the Lower Jurassic Moenave Formation, AMNH 8871. (A) Skull in dorsal view, (B) drawing of skull in dorsal view. Scale bar equals 1 cm.
FIG. 5 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 5. {Lophionotus chinleana, new species, from the Upper Triassic Chinle Formation, AMNH 5682, latex peel of complete specimen in left lateral view. Scale bar equals 1 cm.
FIG. 4 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 4. {Lophionotus chinleana, new species, from the Upper Triassic Chinle Formation, UMNH VP 19417 skull in left lateral view. Stippled areas indicate sensory canals preserved on the specimen. Scale bar equals 1 cm.
FIG. 8 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 8. Phylogenetic relationships of ginglymodian fishes based on a strict (left) and 50-percent majority rule (right) consensus tree from 16 equally parsimonious trees. Unambiguous synapomorphies occurring in each of the 16 trees are indicated on the strict consensus, with symmetric bootstrap frequencies for clades indicated on the 50-percent majority rule consensus tree. (A) {Semionotidae; (B) {Semionotiformes; (C) Lepisosteiformes; (D) Ginglymodi.
FIG. 6 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 6. {Lophionotus kanabensis from the Lower Jurassic Moenave Formation. Type specimen AMNH 8870 in (A) dorsal view of skull; (B) right lateral view of skull; (C) drawing of skull right lateral view, stippled areas indicate visible sensory canals, grayed areas indicate sensory pores; (D) left lateral view of skull; (E) right oblique view of complete specimen; (F) ventral view of caudal fin. All scale bars equal approximately 1 cm.
FIG. 3 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 3. {Lophionotus chinleana, new species, from the Upper Triassic Chinle Formation, UMNH VP 19417 drawing, outline of general body form shown with dashed line, stippled areas on skull indicate preserved sensory canals. Scale bar equals 1 cm.
FIG. 2 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 2. {Lophionotus chinleana, new species, from the Upper Triassic Chinle Formation, UMNH VP 19417 in (A) left lateral view of complete specimen, (B) close-up of skull region; UMNH VP 19418 in (C) left lateral view of complete skeleton, (D) close-up of skull region. All scale bars equal 1 cm.
FIG. 1 in Biodiversity and Evolutionary History of Lophionotus (Neopterygii: Semionotiformes) from the Western United States
FIG. 1. (A) Locality map of Lisbon Valley, Utah (indicated by black square on inset), showing localities (approximate) for specimens of {Lophionotus chinleana, new species. Walt's Quarry, the type locality for {L. chinleana, new species, is indicated. Kanab, Utah, the type locality for {L. kanabensis, is indicated on inset. (B) Generalized stratigraphic column for the Chinle Formation in Lisbon Valley, Utah. Specimens of {L. chinleana, new species, were collected from the Walt's Quarry horizon.
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