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PAPER 64-6 ILLUSTRATIONS OF CANADIAN FOSSILS EARLY LOWER CRETACEOUS (BERRI ASIAN AND VALANGINIAN) OF THE CANADIAN WESTERN CORDILLERA, BRITISH COLUMBIA J. A. Jeletzky Price, 75 cents 1964 GEOLOGICAL SUR VEY OF CANADA PAPER 64-6 Illustra tions of C a nadian Fossils EARLY LOWER CRETACEOUS (BERRIASIAN AND VALANGINIAN} OF THE CANADIAN WESTERN CORDILLERA, BRITISH COLUMBIA By J.A. Jeletzky DEPARTMENT OF MINES AND TECHNICAL SURVEYS CANADA © Crown Copyrights reserved Available by mail from the Queen's Printer, Ottawa, and at the following Canadian Government bookshops: OTTAWA Daly Building, Corner Mackenzie and Rideau TORONTO Mackenzie Building, 36 Adelaide St. East MONTREAL Aeterna-Vie Building, 1182 St. Catherine St. West or through your bookseller A deposit copy of this publication is also available for reference in public libraries across Canada Price 75 cents Ca t . No. M44-64 16 Price subject to change without notice ROGER DUHAMEL, F. R. S. C. QUEEN'S PRINTER AN D CONTROLLER OF STATIO NERY OTTAWA, 1964 Illustra tions of Cana dian Fossils EARLY LOWER CRETACEOUS (BERRIASIA N AND VALANGINIAN) OF THE CANADIAN WESTERN CORDILLERA, BRITISH COLUMBIA This report is one of a series planned to provide illustra tions of stratigraphically important Cana dian fossils a nd is de signed for the use of field geologists. Illustrated herein are some of the index fossils for the early Lower Cretaceous (Be rriasian a nd Valanginian) of the Canadian Western Cordi llera of British Columbia . The rel ative stratigraphic positions of the fossils illustrated and the correlation of their zones with the standard zones of a djacent North American regions are shown in the table on page 3 . M ore detailed information on the zonal indices illustrated in this report will be found in GSC Bulletin 103 (in prep. ) . Selected Bibliography C rickrnay, C.H. I 930a: Fossils from H arrison Lake area, British Columbia; Nat. Mus . Can., Bull. 63, pp. 33-66, 15 pls., 7 figs . l 930b: The structural connection between the Coast R ange of British Columbia and the Cascade R a n ge of Washington; Geol. M ag., vol. 67, pp. 482-491, 2 fig s , 1 geol. m a p. 1962: Gross stratigraphy of H arrison L a ke are a, British Columbia; publ. by a uthor, Calgary, Evelin deMi lle Books, A rt. 7 , 12 pp . , 1 corr . chart . Donovan, D. T. 1953: The Jurassic and C retaceous stratigraphy a nd palaeontology of Trail, East Greenla nd; Medd. om Gr6nla nd, Bd. 111 (4), 150 pp . , 25 pls., 14 figs. Imlay, R. W. 1959: Succ ession and speciation of the pelecypod Aucella; U.S . Geol. Surv . , Prof P a per 3 14-G, pp. 155-1 69, pls. 16-19. 1960 : Ammonites of Early Cretaceous age (Valanginian a nd Hauterivia n) from the P acific Coast Sta te s ; U.S. Geol. Surv., Prof. Paper 334-F, pp. 167-228, pls. 24 -43, 4 tables, figs. 34-36. - 2 - Jeletz ky, J.A. 1950: Stratigraphy of the west coast of Vancouver Island between Kyuquot Sound and Esperanza Inlet, B r itish C o lumbia; Geol. Surv. C an., P a per 50-37, 52 pp., 1 corr. c h art, 1 geol. map. 1959: Uppe r most Jurassic and Lowermost Cre taceous zones of the C anadian Western Cordillera ; Proc . Roy. Soc. C an., vol. LIU, sec. 4, p. 24 (abstract only}. 1963: Evolution a nd biochronology of North American Buchia in l atest Jurassic and early E arly Cretaceous time ; Geol. Soc. Amer., Abstract s for 1962, Spee . P aper 73-.-- (in prep.): L a te Upper Jurassic and early Lower Cretaceous Fossil Zones of the Canadian Weste r n Cordillera, British Columbia; Geol. Surv. C an., Bull. 103 . L a husen, J. 1 888: Ueber die russischen Aucellen; Mem. Com. Geol., t. VIII, No . 1, 45 pp., 5 pls., figs. A-C. Pavlow, A. P. 1907: Enchainement des aucelles et a ucellines du Cretace russe; Soc. Imp. Na t. Moscou, Nouveaux mem., t. 17, 93 pp., 6 pls., 4 f igs . Sokolov, D. l 908a: Aucellen vom Timan und von Spitz ber gen; M em . Com. Geol., (n. se r .), No. 36, 29 pp., 3 pls. (Russian with Germa n summary). l 908b: Ueber Aucellen a us dem Norden und Osten von Sibirien; Mem. Acad. Imp. Sci., St. Petersburg, VIII ser ., Cl. Phys . Math. Sci., vol. XXI (3) , 1 8 pp. , 3 pls . Whiteaves, J. F. 1 882: On the Lowe r Cretaceous rocks of British C olumbia ; Trans. Roy. Soc. C an. , sec. IV, pp. 81-86, 3figs . Fossil zones of the Conadia n western ~"'<(w Fossil zones of arctic Canada, Greenland Suggested zonol sequence for the 1959, 1960) zonol sequence "'w Cordillera and northwestern port of lmloy's ( o"Z< and northeastern British Columbia States of California and Oregon, for the States of California and ~ the State of Washington, U. S. A . ~ :;;"'.. (this report) (this report) (this report) Oregon, U. S. A. ~ -.9,~2 Buchio crouico//is s. sir. Buchio crauicol/is s. str Dichotomites off. qualsinoensis, Oichotomiles quolsinoensis and ?-l~ l y ficoceros sp. ind. Olcostephonus pedci H• 0 otomiles I /tL=pm ently ob•ent on C:=- sinoensis ii Olcostephanus peclci a nd ~It ~ c& r; Homolsomiles slontoni ~ >- 0 ] z <( Dicl'.o tomites cf. g igontevs, Bvchio n. sp. off. inRoto Bvc.h10 n. sp. off. inRoto Polyptychites H g r. keyserlingi, ] z Oicholomiles gigonlet1s 6 Buchio n. sp. inRolo ~ z c ~ "' </) <( :::> > --. 0 A t t ? ?_/f z >- w t . u ,) .9. ToWo (Tollio) t z"' Homo/somiles "" .9. mutobilis s. lolo < 6 mutabilis s. loto ~ >w mulai:::.• lo/f z ·a. ~ ·s "'u g (.;> Tellio (To/fia) > Buchio "' poucicostofo Tol/io (To //io ) cf. to/Ii, .9. tolmotschowi ~ etc. To//io (Tol/io ) spp. s. Iota l Buchio lo/molschowi s. loto "(~ "' .2 g~ l 1 Kilionello crauiplicoto, No ammonites known Thurmonniceras colifornicum and Sorosine/lo hyotti ________J i ? t---1----~-_l l Spiticeras (Spiticeros) spp., Buchio uncitoides s. loto " / n. sp., . z N~comiles <( Groebericeras? n. sp., etc. Bochio volgensis s. str., To/lia (To//io ) d. ?•------"' z poyeri, Tollio {Subcra.spediles) spp. z6 < z ;;;~ :!!< "'> &Khio uncitoides s. loto I I No fossil eYidence. Regionol unconformity? ~ s~h i~ ~;~oid~ No fossil eYidence ~~ ~ z II < Buchio olcensis s. lo to, Tol/ia (Subcraq>ediles) ;;; Bvchia ohnsis s. loto off. plicompholus Buchio olcensis, , _, "' s. Io ta etc. · " ~ GSC TABLE 1. Correlation ol early Lower Cretaceous fossil zones, Conodion western Cordillera and norlhwestern part ol State ol Vvasnington, U. S. A ., with those of adjacent regions of western and northwestern North America - 4 - PLATE I FIGURES la-lb: Buchia o kensis (Pavlow, 1907) s. lato. West coast of Vancouver Island, west side of the main body of Gra ssy Island . One Tree Formation, about 14-16 feet above the base of the section and 8-10 feet above the Jurassic-Cretaceous contact. Lower Berriasian. GSC No . 16589. An inte rnal cast of an incomplete giant representative of the species. la. Lateral view of the exterior of the left valve . lb. Anterior view of the same. FIGURES Za-Zb: Buchia o kensis (Pavl ow, 1907) s. lato. West coast of Vancouver Island, main body of Grassy Island, One Tree Formatio~ated rocky hill on its southeast side overlooking the beach about 100 feet southeast from the only group of trees on the island . Collected from a 2-foot sandstone bed. Lower Berdasian. GSC No . 16592 . An extreme Buchia volgeneis-like variant of the species preserved as an internal cast with considerable patches of the inner sheU-layer in places. 2a. Lateral view of the exterior of the left valve. 2b. Anterior view of the same . FIGURES 3a-3b: Buchia okensis (Pavlow, 1907) s. lato. Sarne locality, etc. as figs. l a -lb. GSC No. 16591. An internal cast of a small,~· volgensia - and~ · terebratuloides-like variant of the species. 3·a. Lateral view of the exterior of the left valve. 3b. Anterior view of the same . FIGURES 4a- 4b: Buchia okensis (Pavlow , 1907) s. lato. Same l ocality , etc. as figs. 2a-2b. An internal cast (a small patch of the shell-layer is preserved at the margin of the valve) of a medium-sized, fairly typical representative of the species. GSC No. 16590 . 4a . Lateral view of the exterior of the left valve . 4b. Anterior view of the same. FIGURES 5a-5b: Buc hia okenais (Pavlow) var. elliptica (Pavlow). Same locality, etc. as figs. 2a-2b. An extreme and rare representative of the variant. Left valve. GSC No. 17311. Sa. Lateral view of the exterior. Sb. Anterior view of the same. F IGURES 6a-6b: Buc hia okensis (Pavlow, 1907) var. canadiana (Crickmay , 1930). West coast of Vancouver Island, McQuarry Island, middle part of the main body. One Tree Formation, about 8-10 feet above the Jurassic Cretaceous contact. A medium-sized, fairly typic a l representative of the variant, somewhat transitional to ~·~var. trigonoides (Pavlow non Lahusen) in the outline of the valve. Left valve. GSC No. 16593. 6a. Lateral view of the exterior . 6b. Anterior view of the same. FIGURES 7a-7b: Buchia okensis (Pavlow, 1907) s. lato. Locality as in figs. l a- lb. An almost complete giant representative of the specie~nternal cast of the right valve with considerable patches of the inner and outer shell-layer preserved in places. GSC No. 16594. 7a . Lateral view of the exterior. 7b . Oblique, poste rior view of the same. FIGURES Ba-Sb: B uchia okensis (Pavlow, 1907) var. Locality as in figs. 2a-2b. An internal cast of a large representative transitional between the typical form and~ - £· var.