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104 results for “Burgess Shale”
FIGURE 25. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 25. Allonnia tintinopsis n.sp. associated with Vauxia. 1. ROM 49587B, RQ 8.3, dry. 2. ROM 49584A, RQ 8.1, wet.
FIGURE 21. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 21. Allonnia tintinopsis n.sp. Apical tufts and orifices. 1. ROM 62524A (also in Figure 17.1), RQ 8.7, dry. 2. ROM 49608a, RT, dry/pol. 3. ROM 49608b, RT, dry/pol. 4. ROM 49607A, RQ 10.7, wet/pol. 5. ROM 62525B, RQ 8.4, dry. 6. ROM 62525B, RQ 8.4, dry/pol. 7. ROM 62520B (also in Figure 24.3), RQ 9.0, wet. 8, 9. ROM 62587, RQ 8.4, wet/pol (8), wet (9). 10. ROM 49614B, RQ 9.0, dry/pol. 11, 12. ROM 49620B (counterpart to the upper right specimen in Figure 27.3), RQ 9.0, 11. Dry/pol. 12. Detail of 11 (position marked by frame), dry/pol. Scale bars in all pictures equal 1 mm.
FIGURE 23. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 23. Allonnia tintinopsis n.sp. Apical tufts. 1. ROM 49605(1), RQ 9.2, wet/pol. 2, 3. ROM 62591, UE. 2. Wet. 3. Detail of 2 (position marked by frame), wet.
FIGURE 20. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 20. Allonnia tintinopsis n.sp. with stalk-like constrictions. 1. ROM 49616B, RQ 9.1, dry. 2. ROM 49596A, RQ 8.4, dry. 3, 4. ROM 49603, RQ 8.9. 3, Dry/pol. 4. Detail of 3 (position marked by frame), dry/pol.
FIGURE 18 in Chancelloriids of the Cambrian Burgess Shale
FIGURE 18. Ray length against distance from base in Allonnia tintinopsis n.sp. ROM 49610A, RQ 11.4 (left; white squares) and ROM 49607A, RQ 10.7 (right; black circles).
FIGURE 19. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 19. Allonnia tintinopsis n.sp. with stalk-like constriction. ROM 49573, ST. 1. Complete specimen, dry. 2. Detail of 1 (position marked by frame), dry, showing lower part of stalk with densely packed sclerites and debris.
FIGURE 16. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 16. Allonnia tintinopsis n.sp., ROM 62527, part (1, 2) and counterpart (3), BW -110. 1. The larger specimen to the right in 1 is the holotype (ROM 62527[1]). 2. Holotype, detail of apical part (position marked in 1), with tuft. 3. Detail of lower part of body of holotype (counterpart; position on part marked in 1), showing morphology and arrangement of sclerites. Small letters at mid right denote lateral (L) and ascending (A) rays of selected sclerites. All pictures taken wet.
FIGURE 17. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 17. Allonnia tintinopsis n.sp. Apical tufts and concentration gradient of pyrite. 1. ROM 62524A (also in Figure 21.1), RQ 8.7, wet. 2. ROM 62516B, RQ 8.8, wet. 3. ROM 62519B, RQ 8.2, wet. 4. ROM 62586, wet. 5. ROM 62517, RQ 8.8, wet.
FIGURE 36. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 36. Allonnia tintinopsis n.sp. together with Micromitra shells and carapace of Isoxys. ROM 49602B, RQ 8.7, dry.
FIGURE 14. Chancelloria eros Walcott, 1920 in Chancelloriids of the Cambrian Burgess Shale
FIGURE 14. Chancelloria eros Walcott, 1920 (1, 2), and C. cf. eros (3–5), ST. 1. ROM 49574, dry. 2. ROM 49572, dry. 3–5. ROM 49576, dry. Items 4 and 5 show details of the upper and lower portions, respectively, of 3.
FIGURE 44. Archiasterella coriacea n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 44. Archiasterella coriacea n.sp. 1. ROM 49619A, RQ, wet. 2. ROM 49567A, UE, wet. Arrow points to tuft.
FIGURE 22. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 22. Allonnia tintinopsis n.sp. ROM 49612A, RQ 9.8, dry/pol. 1. Apical part of body, with tuft. 2, 3. Details of 1 (positions marked by frames).
FIGURE 43. Archiasterella coriacea n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 43. Archiasterella coriacea n.sp. ROM 49617B, RQ 13.8. 1. Complete specimen, wet. 2. Detail of upper specimen in 1 (position marked by frame), wet. 3. Detail of 1 (position marked by frame), wet, showing stalk uniting upper and lower specimen.
FIGURE 33 in Chancelloriids of the Cambrian Burgess Shale
FIGURE 33. Association of Allonnia tintinopsis n.sp., bodies and attachments, on bedding slab. ROM 62585, RQ 8.4. 1. Part; arrow points to specimen represented by counterpart in 3, dry. 2. Tracing of bodies (red; darker tones toward the apex) and root bulbs (grey), based on both part and counterpart. 3. Counterpart of specimen with root bulb marked by arrow in 1, dry.
FIGURE 40. Archiasterella coriacea n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 40. Archiasterella coriacea n.sp, ROM 57573, WQ -130. 1. Wet. 2, 3. SEM stereographs (red/blue anaglyphic images) of latex casts taken of counterpart to show structure of integument. Frames show positions of details 2 and 3.
FIGURE 38. Archiasterella coriacea n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 38. Archiasterella coriacea n.sp., holotype, ROM 62531A (same specimen as in Figures 31.4 and 39), BW - 130. 1. Complete specimen showing alignment of sclerites, wet. 2. Detail of 1 (position marked by frame) showing the apical tuft, wet. 3. Detail of 1 (position marked by frame) showing the attitude of sclerites relative to the body wall, wet.
FIGURE 12. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 12. Allonnia tintinopsis n.sp. intergrown with or superimposed on Chancelloria eros Walcott, 1920. 1–3. ROM 49605(2) (intergrown with a specimen of Vauxia), RQ 9.2. 1. Same as figure 12B in Bengtson, 2000; see that paper for details on settings. 2, 3. Details of 1 (positions marked by frames), dry. 4–6. ROM 62537B, RQ 8.4. 4. Wet. 5, 6. Details of 4 (positions marked by frames), dry. Net-like patches are fragments of Micromitra shells.
FIGURE 35 in Chancelloriids of the Cambrian Burgess Shale
FIGURE 35. Intergrowth of Allonnia tintinopsis n.sp. with Vauxia. ROM 62521B, RQ 8.4. 1. Dry. 2. Detail of 1 (position marked by frame), dry.
FIGURE 28. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 28. Allonnia tintinopsis n.sp., two specimens on the same slab showing probable attachment to hyoliths (1, wet) and Vauxia (2, wet). ROM 62518A, RQ 8.2. Inset in 2 (dry) shows blowup of isolated, probably extraneous, Chancelloria-like sclerite in Allonnia scleritome.
FIGURE 26. Allonnia tintinopsis n in Chancelloriids of the Cambrian Burgess Shale
FIGURE 26. Allonnia tintinopsis n.sp. ROM 57574, RQ 8.5. Apical tuft and orifice. 1. Dry. 2–4. Details of preceding pictures (positions marked by frames), dry.
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