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531 results for “Oregon”
Figure 8 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 8. Glycymeris andersoni Dickerson (1917), Gries Ranch Formation. A. Interior of right valve, hypotype UCMP 110730. B, C. Exterior and interior of right valve, hypotype UCMP 110729. D, E. Ventral and do2rsal of articulated valves, hypotype UCMP 110731. Scale bars=1 cm.
Figure 3 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 3. Crenella porterensis Weaver (1912) (A–C, E) and C. washingtonensis Weaver (1916) (D, F). A. Articulated, left valve, hypotype UCMP 32410, Lincoln Creek Formation, height 18.2 mm. B. articulated, hypotype USNM 561803, Keasey Formation, height 13.5 mm. C. Exterior mold in matrix, hypotype UCMP 110725, Keasey Formation, height 10.8 mm. D. Right valve, hypotype UCMP 32250, Blakeley Formation, height 12.5 mm. E. Partial shell exterior in matrix, hypotype UCMP 110726, Keasey Formation, height 10.3 mm. F. Partial shell exterior in matrix, hypotype 110727, Keasey Formation, height 5.4 mm.
Figure 7 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 7. Porterius woodfordi (Hanna, 1927), Ardath Shale, paratype UCMP 31063. A. Exterior of with numerous very fine radial ribs, scale bar=1 cm B. previously unfigured cardinal area and hingeplate, scale bar=1 mm.
Figure 2 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 2. Alternative reconstructions of the life habit of Crenella decussata. A. Completely encased in crypt of cemented sedimentary grains, living below sediment-water interface in North Atlantic. B, C. Byssus attached to shell fragments, living at sedimentwater interface in North Pacific.
Figure 18. Delectopecten kieli n in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 18. Delectopecten kieli n. sp. Low voltage scanning Electron Micrographs. A. Right valve exterior, Paratype, UCMP 110750. B. Right valve exterior, Paratype, UCMP 110751. C. Right valve exterior UMMP 110752. D. Right valve exterior, Paratype UCMP 110753. E. Left valve exterior, Paratype, UCMP 110754. F. Left valve exterior, Paratype UCMP 110755. G. Right valve interior, Paratype UCMP 110756. H. Right valve interior, Holotype, UCMP 110746. I. Right valve interior, Paratype UCMP 110757. J. Articulated, left valve exterior rotated within right valve interior, Paratype UCMP 110758. K. Detail of sculpture on J. L. Articulated, left valve exterior displaced on top of right valve interior, Paratype UCMP 110759. Range of shell lengths: 2.2–3.2 mm.
Figure 13 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 13. Bathyisognomon smithwickensis? Right valve exterior, left valve exterior, and exterior view of ligament pits on large, incomplete specimen from Loc. LACM IP5806. Scale bar=5 cm.
Figure 12. Bathyisognomon smithwickensis n in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 12. Bathyisognomon smithwickensis n. sp. A–C. Right valve exterior, left valve exterior, and exterior view of ligament pits, double-valved holotype, UCMP 110744. D–F. Right valve exterior, left valve exterior, and exterior view of ligament pits, double valved paratype, UCMP 110745. Scale bars=5 cm.
Figure 22 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 22. Propeamussium (Parvamussium) mistensis n. sp., uncoated latex casts of three paratypes. A. Left valve exterior, USNM 561853. B. Left valve exterior, USNM 561856. Right valve exterior, USNM 561850. Scale bars=3 mm.
Figure 21 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 21. Propeamussium (Parvamussium) mistensis n. sp., paired color images of molds in matrix and corresponding ammonium chloride-coated casts. A. Left valve exterior, holotype USNM 561849, length 8 mm. B. Left valve exterior, paratype USNM 561856, length 8.1 mm. C. Right valve exterior, paratype USNM 561850, length 5 mm. D. Right valve exterior on top of left valve, paratype USNM 561854, length 7 mm. E. Left valve interior, Paratype USNM 561852, length 6 mm.
Figure 11 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 11. Isognomon? sp. Fragment of nacreous isognomonid ligament area with narrow ligament pits and five shallowly concave interspaces. USNM 561801. Scale bar=1 cm.
Figure 17. Delectopecten kieli n in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 17. Delectopecten kieli n. sp. A. Right valve exterior, Holotype, UCMP 110746. B. Right valve exterior, Paratype, UCMP 110747. C. Left valve exterior, Paratype, UCMP 110748. D. Right valve exterior, Paratype UCMP 110749. Scale bars=1 mm. E. Detail of camptonectes sculpture on B, with reticulations and splitting of fine radial ribs (white circles). Scale bar=0.5 mm.
Figure 5 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 5. Porterius gabbi (Dickerson, 1917), Keasey Formation. A, B. Exterior and Interior of right valve, hypotype USNM 561838, scale bar=1 cm. C. Detail of cardinal area and hinge plate of B, scale bar=1 mm. D. Interior of left valve interior in matrix, hypotype UCMP 110736, scale bar=1 cm. E–H. Interior and exterior of left valve, hypotype UCMP 110737, with detail views of hinge tooth striations (G) and interior shell lines (H), scale bar=1 cm.
Figure 20 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 20. Variation in shell morphology in living North Pacific Propeamussiidae. A, B. Right and left valves of Propeamussium jeffreysi (E.A. Smith, 1885), SBMNH 126833. C, D. Right and left valves of Cyclopecten davidsoni (Dall, 1898), SBMNH 123955. E, F. Right and left valves of Parvamussium alaskense (Dall, 1871), SBMNH 103661. Scale bars=1 cm.
Figure 4. A in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 4. A. Crenella porterensis detail of coarser ribs and rib increase by splitting (yellow arrow) and by intercalation (black arrows) (enlarged from Fig. 3A). B. Crenella washingtonensis detail of finer ribs and rib increase by intercalation (black arrows) (comparable enlargement from Fig. 3D).
Figure 16 in Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part II: The pteriomorphs
Figure 16. Delectopecten vancouverensis (Whiteaves, 1893), North Pacific live-collected, articulated representative of the type species of Delectopecten. SBMNH 130085. A. Left valve. B. Right valve. C. Enlargement of byssal notch with ctenolium (yellow circle). Scale bars=1 mm.
Figure 14 in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA
Figure 14. Urticales. Cannabaceae/Moraceae Wood Type 1. UF 278-87894. A, B. Wood diffuse-porous, vessels solitary and in radial multiples; marginal parenchyma, TS. C. Alternate intervessel pitting, polygonal in outline, simple perforation plates, ray with sheath cells, TLS. D. Vessel to parenchyma pits, similar in size to intervessel pitting with reduced borders, RLS. E. Rays predominantly multiseriate, 1-2-seriate rays rare, TLS. F. Ray body cells procumbent, marginal row of upright/square cells, RLS. Scale bars‒500 µm in A; 200 µm in B, E; 100 µm in F; 50 µm in C, D.
Figure 4 in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA
Figure 4. Magnoliaceae. Magnolia hansnooteboomii, UF 278-84871. A. Diffuse-porous wood, vessels predominantly in radial multiples, T.S. B, C. Scalariform perforation plates with fewer than 20 bars, helical thickenings in vessel elements, RLS. D. Scalariform intervessel pitting, TLS. E. Vessel-ray parenchyma pits with reduced borders, horizontally elongate in outline, RLS. F, G. Rays mostly 3‒4 cells wide, scalariform perforation plates, non-septate fibers, note scalariform intervessel pits in F and tyloses (T) in G, TLS. Scale bars=200 µm in A; 100 µm in G; 50 µm in B, E, F; 20 µm in C, D.
Figure 9 in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA
Figure 9. Fagaceae. Quercinium sp, UF 278-84878. A. Diffuse- to semi-ring-porous wood; vessels exclusively solitary, very slight tendency to diagonal arrangement, TS. B. Simple perforation plates (PP), RLS. C. Vasicentric tracheids, uniseriate rays, axial parenchyma strands, TLS. D. Vessel-ray parenchyma pits with reduced borders to simple, tyloses, RLS. E, F. Rays of two distinct sizes, TLS. Scale bars=200 µm in A, E; 100 µm in B, C, F; 50 µm in C; 20 µm in D.
Figure 3 in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA
Figure 3. Cupressaceae. Taxodioxylon sp. A, C, E–I. UF 278-84886. B, D. UF 278-84889. A, B. Narrow latewood zone, axial parenchyma diffuse and in short tangential lines, TS. C. Latewood with compression wood, TS. D, E. Uniseriate rays, TLS. F. End walls of axial parenchyma smooth, TLS. G. Circular bordered pits on radial walls of longitudinal tracheids, occasionally biseriate; most rays homocellular composed of ray parenchyma, bottom ray with top marginal row possibly composed of ray tracheids (RT) RLS. H. Ray composed of ray parenchyma, horizontal and end walls smooth, RLS. I. Taxodioid cross-field pits, RLS. Scale bars=200 µm in A, B; 100 µm in C, D, E, G; 50 µm in F, H; 20 µm in I.
Figure 6. Platanaceae. Platanoxylon haydenii. A, B in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA
Figure 6. Platanaceae. Platanoxylon haydenii. A, B. Diffuse-porous wood, vessels mostly solitary, a few tangential multiples; diffuse and diffuse-in-aggregates axial parenchyma; fiber walls of medium thickness, TS, UF 278-84881(A), UF 278-84874 (B). C. Scalariform perforation plates, UF 278-84874, RLS. D. Opposite intervessel pitting, UF 278-84874, TLS. E. Wide (>10-seriate) and tall (>1 mm) rays, UF 278-.84874, TLS. F. Rays composed predominantly of procumbent cells, UF 278-84879, RLS. Scale bars=500 µm in E; 200 µm in A; 100 µm in B, F; 50 µm in C, D.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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