PLIENSBACHIAN (LOWER JURASSIC) BIOSTRATIGRAPHY AND ...

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Figure 1. M etaderoceras sp. cf. M . m outerdei (Frebold, 1970) Figured specimen GSC 83082 (latex cast), lateral view. Joan Formation. GSC loc. C-103114 (locality 59, this report). Figures 2-5. Dubariceras silviesi (Hertlein, 1925) 2. Hypotype GSC 83084, lateral view. Joan Formation. GSC loc. C-90902 (locality 84, this report). 3. Hypotype GSC 83083 (latex cast), lateral view. Joan Formation. GSC loc. C-88231 (locality 90, this report). 4. Hypotype GSC 83085 (latex cast), lateral view. Joan Formation. GSC loc. C-90926 (locality 82, this report). 5. Hypotype GSC 83086 (latex cast), lateral view. Joan Formation. GSC loc. C-103310 (locality 9, this report).
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GEOLOGICAL SURVEY OF CANADA BULLETI
Page 3 and 4:
PREFACE Study of the copious ammoni
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12 12 13 14 21 25 26 35 56 9. Litho
Page 7 and 8:
La faune d’ammonites est dominee
Page 9 and 10:
INTRODUCTION The northern part of t
Page 11 and 12:
Figure 4. Inferred stratigraphic re
Page 13 and 14:
Figure 5. Distribution o f the fiv
Page 15 and 16:
SOUTHWEST A Metres 2500 2000 1500 1
Page 17 and 18:
SECTION 3 3 km southw est of Joan L
Page 19 and 20:
Figure 12. Fossil localities and me
Page 21 and 22:
D escription. Shell midvolute, whor
Page 23 and 24:
fragments at which stage the whorl
Page 25 and 26: Material. A single, large whorl fra
Page 27 and 28: talkeetnaense is known from the Fre
Page 29 and 30: where they trend rursiradiately, th
Page 31 and 32: 40 35 30 25 20 15 10 35 30 25 20 15
Page 33 and 34: 1984 Dubariceras fre b o ld i Domme
Page 35 and 36: Family DACTYLIOCERATIDE Hyatt, 1867
Page 37 and 38: that bear only sporadic tubercles.
Page 39 and 40: Type species. Leptaleoceras leptum
Page 41 and 42: Discussion. Specimen is considered
Page 43 and 44: North America is poorly documented.
Page 45 and 46: Genus and species indet. Plate 16,
Page 47 and 48: Callomon, J.H. 1984: Biostratigraph
Page 49 and 50: Hallam, A. 1988: A re-evaluation of
Page 51 and 52: 1862: U b e r J u ra s s is c h e n
Page 53: Taylor, D.G., Smith, P.L., Laws, R.
Page 56 and 57: Locality Field no. GSC loc. no. GSC
Page 58 and 59: West end o f anticline The followin
Page 60 and 61: F F F F F F K K F K ? ? C K K F F F
Page 63: Figure 1. Camptonectes (Camptochlam
Page 67: Figures 1, 2. U ptonial sp. 1. Figu
Page 71: Figures 1-5. M etaderoceras talkeet
Page 75: Figures 1-4. M etaderoceras sp. cf.
Page 81: Figures 1-6. Leptaleoceras sp. aff.
Page 85: Figures 1, 2. Arieticeras sp. cf. A
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PLIENSBACHIAN (LOWER JURASSIC) BIOSTRATIGRAPHY AND ...

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