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FIG. 2. Scaphite terminology. A, B, D in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 2. Scaphite terminology. A, B, D. Macroconch, left (A, B) and right (D) lateral views. The position of the last septum marks the base of the body chamber. The umbilical seam of the shaft is straight in macroconchs. C. Close-up of the umbilicus; the umbilical diameter is measured parallel to the long axis of the specimen. D. Angle of orientation of the aperture with respect to the vertical (orientation). Abbreviations: HP = whorl height of the phragmocone along the long axis; HS = whorl height at midshaft; HH = whorl height of the hook at the point of recurvature; LMAX = maximum length along the long axis; apt. ∢ = apertural angle; SA ∢ = septal angle; UD = umbilical diameter; X= center of buoyancy; • = center of mass.

FIG. 19 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 19. Scaphites (S.) depressus Reeside, 1927, macroconch, TMP2016.041.0012, 132.5 m, Wapiabi Formation, Ram River, Alberta. A. Right lateral; B. apertural; C. ventral; D. left lateral.

FIG. 24 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 24. Sphenoceramus ex gr. cardissoides (Goldfuss, 1835), TMP 2016.041.0272, RV, Wapiabi Formation, West Thistle Creek, 125.3 m, A, lateral view, B, posterior view, C, anterior view. The photograph is ×1.

FIG. 1 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 1. Map of southwestern Alberta, Canada, showing localities mentioned in the text (for more details, see Plint et al., this issue).

FIG. 13 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 13. Volviceramus exogyroides (Meek and Hayden, 1862), TMP 2016.041.0415, LV, Wapiabi Formation, Bighorn Dam, interval 50–60 m, A, lateral view of the juvenile stage, B, lateral view of the adult stage, C, anterior view. All photographs are ×1.0.

FIG. 18 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 18. Scaphites (S.) depressus Reeside, 1927, macroconch, TMP2016.041.0011, 132.5 m, Wapiabi Formation, Ram River, Alberta. A. Right lateral; B. apertural; C. ventral; D. left lateral.

FIG. 12 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 12. Scaphites (S.) ventricosus Meek and Hayden, 1862, macroconch, TMP2016.041.0167, 51.3 m, Wapiabi Formation, Chungo Creek, Alberta. A. Right lateral; B. apertural; C. ventral; D. left lateral.

FIG. 15 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 15. Scaphites (S.) ventricosus Meek and Hayden, 1862, macroconchs, Montana. A, B. AMNH 108451, Kevin Member, Marias River Shale, Toole County, Montana. A. Left lateral; B. apertural. C, D. AMNH 91921, Kevin Member, Marias River Shale, Toole County, Montana. C. Left lateral; D. apertural.

FIG. 6 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 6. Inoceramus kleini Müller, 1888, double-valve specimen, TMP 2016.041.0407, Wapiabi Formation, Bighorn Dam, 47.0 m: A, posterior view, B, anterior view, C, right lateral, view; the specimen is ×1.

FIG. 16 in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 16. Intraclastic pebble lag resting on surface SS0 at Thistle Creek west (fig. 5). A. General view of siderite pebbles seen from above; scale bar in each image = 20 cm. B. Detail of panel A showing pitted, bioeroded surface of a siderite pebble. C. Side view of conglomerate showing clasts filling a shallow erosional trough (arrows).

FIG. 14. A in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 14. A portion of the Muskiki Member exposed in Sheep River (fig. 11), illustrating typical sandier-upward successions (arrows) bounded by flooding surfaces. The regionally mappable surface CS3 is indicated.

FIG. 18. A in Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin

FIG. 18. A. Overview of the lower part of the Coniacian succession at Burnt Timber Creek (fig. 9) illustrating depositional cyclicity and bounding surfaces E7 and CS1 to CS5. Note the prominent sandier-upward succession culminating in surface CS4. B. Overview of part of the Sheep River canyon (fig. 11). The CS4 surface caps an upward-coarsening package that, in this view, is repeated by a thrust fault; Walaszczyk (circled) provides an indication of scale. C. Detailed view of the subtle, but sharp CS4 surface that is mantled with a few mm of chert and phosphate pebbles and granules and separates bioturbated siltstone and very fine-grained sandstone below from silty clay above.

Plate 99 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 99 Baillie-Back. 1 Neidium sp. (6862) 2, 3 N. apiculatum (6862) 4 N. fossum [N. sp. PH] (6862) 5 N. affine var. humerus (6862) 6 N. fossum (6858) 7 N. amphigomphus (6863) 8 N. ampliatum [N. ampliatum sensu lato PH] (6856, 6864) 9 N. fossum (6863). Scale bar: 10 µm.

Plate 94 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 94 Baillie-Back. 1 Cymbopleura stauroneiformis (6857) 2 C. angustata (6857) 3 C. incerta var. spitsbergensis (6857) 4 C. sp. (6862) 5–8 C. incertiformis var. linearis (6856) 9 C. anglica (6862) 10 C. neoheteropleura (6857) 11 C. apiculata (6858) 12, 13 C. tynnii (6856, 6857, 6859, 6863) 14 C. fluminea (6858, 6866). Scale bar: 10 µm.

Plate 9 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 9 Waterton. 1 Gomphosinica geitleri (4520) 2 Gomphonema sp. [cf. G. capitatum] (4543) 3 Gomphonema angusticephalum (4542) 4–7 Gomphonema pala (4539) 8 Gomphonema sp. (4520) [cf. Gomphonema angusticlavatum or cf. G. subclavatum (KJ)] 9 Gomphonema capitatum (4532) 10 Gomphonema subtile (4542) 11 Gomphonema brebissonii sensu lato (4543) 12, 13 Gomphonema truncatum sensu lato (4545) 14 Gomphonema anglicum (4542) 15–20 Gomphonema sp. [G. sublaticollum (KJ)] (4562, 4570). Scale bar: 10 µm.

Plate 86 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 86 Baillie-Back. 1–8 Eunotia sarek (6856, 6863, 6866) 9 E. pseudopapilio (6861). Scale bars: 10 µm.

Plate 83 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 83 Baillie-Back. 1–7 Eunotia elegans [E. nymanniana sensu lato PH] (6856, 6857, 6860) 8, 9 Eunotia neocompacta (6859, 6864) 10 Eunotia septentrionalis (6858) 11 Eunotia ursamaioris [E. ursamaioris sensu lato PH] (6862) 12 Peronia fibula (6865) 13 Eunotia minor (6862, 6865) 14 Eunotia braendlei (6862) 15 Eunotia sp. [cf. E. ursamaioris] (6862) 16 Eunotia lapponica (6862) 17, 18 Eunotia silesioscandica (6858, 6862) 19–21 Eunotia neoborealis (6864, 6865) 22–24 Eunotia denticulata (6857). Scale bars: 10 µm.

Plate 79 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 79 Baillie-Back. 1–5 Eunotia pseudopectinalis (6856, 6857, 6859, 6865) 6–8 E. pectinalis (6862). Scale bars: 10 µm.

Plate 76 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 76 Coppermine. 1–3 Epithemia smithii (6826, 6827) 4 Denticula tenuis (6830) 5 Cymatopleura solea (6832) 6 Rhopalodia gibba (6832) 7 Denticula sp. [cf. D. valida] (6831) 8–10 Denticula kuetzingii (6830, 6833). Scale bars: 10 µm.

Plate 85 from: Bahls L, Boynton B, Johnston B (2018) Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada. PhytoKeys 105: 1-186. https://doi.org/10.3897/phytokeys.105.23806

Plate 85 Baillie-Back. 1, 2 Eunotia diodon (6865) 3–7 E. islandica (6861, 6864) 8, 9 E. suecica [Fig. 9 E. bigibboidea PH](6861) 10 E. perminuta (6861) 11, 12 E. sp. (6859, 6865) 13–16 E. circumborealis (6856, 6859, 6860, 6865) 17, 18 E. superbidens (6861, 6866). Scale bars: 10 µm.