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U.S. Oeoxogijcal SUB.Vklir PROFESSIONAL PAPEE AVAILABILITY of BOOKS and MAPS of the U.S f~\r/% OI U.S. OEOXOGIjCAL SUB.VKlir PROFESSIONAL PAPEE AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with prices of the last offerings, are given in the cur­ rent-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Sur­ vey publications released prior to the current year are listed in the most recent annual "Price and Availability List." Publications that are listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" are no longer available. Prices of reports released to the open files are given in the listing "U.S. Geological Survey Open-File Reports," updated month­ ly, which is for sale in microfiche from the U.S. Geological Survey, Books and Open-File Reports Section, Federal Center, Box 25425, Denver, CO 80225. Reports released through the NTIS may be obtained by writing to the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161; please include NTIS report number with inquiry. Order U.S. Geological Survey publications by mail or over the counter from the offices given below. BY MAIL n , OVER THE COUNTER Books Books Professional Papers, Bulletins, Water-Supply Papers, Techniques of Water-Resources Investigations, Circulars, publications of general in- Books of the U.S. Geological Survey are available over the terest (such as leaflets, pamphlets, booklets), single copies of Earthquakes counter at the following Geological Survey Public Inquiries Offices, all & Volcanoes, Preliminary Determination of Epicenters, and some mis- of which are authorized agents of the Superintendent of Documents: cellaneous reports, including some of the foregoing series that have gone out of print at the Superintendent of Documents, are obtainable by mail from WASHINGTON, D.C.-Main Interior Bldg., 2600 corridor, 18th and CSts.,NW. U.S. Geological Survey, Books and Open-File Reports DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. Federal Center, Box 25425 . LOS ANGELES, California-Federal Bldg., Rm. 7638,300 N. Denver, CO 80225 Los Angeles St. MENLO PARK, California-Bldg. 3 (Stop 533), Rm. 3128, Subscriptions to periodicals (Earthquakes & Volcanoes and 345 Middlefield Rd. Preliminary Determination of Epicenters) can be obtained ONLY from RESTON, Virginia-503 National Center, Rm. 1C402,12201 the Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 Superintendent of Documents South State St. Government Printing Office - SAN FRANCISCO, California-Customhouse, Rm. 504,555 Washington, D.C. 20402 Battery St. SPOKANE, Washington~U.S. Courthouse, Rm. 678, West (Check or money order must be payable to Superintendent of Docu- 920 Riverside Ave.. ments.) . ANCHORAGE, AIaska~Rm. 101,4230 University Dr. ANCHORAGE, Alaska-Federal Bldg, Rm. E-146, 701 C St. Maps For maps, address mail orders to U.S. Geological Survey, Map Distribution Maps Federal Center, Box 25286 Maps may ^ purchased over the counter at the U.S. Geologi- Denver, CO 80225 cal 5^^^ Offices where books are sold (all addresses in above list) and at the following Geological Survey offices: Residents of Alaska may order maps from ROLLA, Missouri-1400 Independence Rd. Alaska Distribution Section, U.S. Geological Survey, . DENVER, Colorado-Map Distribution, Bldg. 810, Federal New Federal Building - Box 12 Center 101 Twelfth Ave., Fairbanks, AK 99701 . FAIRBANKS, Alaska-New Federal Bldg., 101 Twelfth Ave. Paleontology of Late Proterozoic and Early Cambrian Rocks of East-Central Alaska By CAROL WAGNER ALLISON U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1449 A total of37 species-level taxa referable to the bacteria, cyanobacteria, algae, acritarcha, fungi, port/era, coelenterata or arthropoda, and one trace fossil from Late Proterozoic and Early Cambrian nonstromatolitic horizons in east-central Alaska are described and compared with similar fossils elsewhere UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1988 U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Any use of trade names and trademarks in this publication is for descriptive purposes only and does not constitute endorsement by the U.S. Geological Survey Library of Congress Cataloging-in-Publication Data Allison, Carol Wagner. Paleontology of Late Proterozoic and Early Cambrian rocks of east-central Alaska. (Paleontology of Alaska) (Geological Survey professional paper ; 1449) Bibliography: p. Supt. of Docs.: 19.16:1449 1. Paleontology Precambrian. 2. Paleontology Cambrian. 3. Paleontology Alaska. I. Title. II. Series. HI. Series: Geological Survey professional paper ; 1449. QE724.A45 1988 560'.1'71 86-600399 For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225 CONTENTS Page Abstract --------------------------- 1 Systematic paleontology Continued Introduction ------------------------- 1 Protista Incertae Sedis Continued Acknowledgments -------------------- 3 Type F------------------------ 27 General stratigraphy and collecting areas ---------- 3 Type G------------------------ 28 Eagle area ------------------------ 3 Fungi -------------------------- 28 Tatonduk area ---------------------- 4 Phycomycetae -------------------- 28 Nation area ----------------------- 7 ?0rder Saprolegniales -------------- 28 Woodchopper area -------------------- 9 Genus Cylindromyces ------------ 28 Correlation ------------------------ 10 Cylindromyces septatus- --------- 29 Paleontology ------------------------- 10 ?Fungi Imperfecti -------------------- 30 Sampling procedures ------------------- 11 Order Fungi Sporae Dispersae ------------ 30 Laboratory procedures ------------------ 13 Family Monocellae ---------------- 30 Interpretation ---------------------- 13 Oval Spore Type A-------------- 30 Sample repository -------------------- 13 Oval Spore Type B-------------- 31 Systematic paleontology ------------------- 14 ?Fungi -------------------------- 31 Bacteria ------------------------- 14 Type A------------------------ 31 Genus Eoastrion ------------------- 14 Type B------------------------ 32 lEoastrion sp. ------------------ 14 Porifera ------------------------- 33 Cyanobacteria ---------------------- 15 Incertae Sedis -------------------- 33 ?0rder Pleurocapsales ---------------- 15 ?Porifera ------------------------- 33 Genus Sphaerocongregus ------------- 15 Unnamed multirayed form -------------- 33 Sphaerocongregus variabilis --------- 15 Family Chancelloriidae ---------------- 34 1 Sphaerocongregus sp. ------------ 17 Genus Chancelloria --------------- 34 Genus Bavlinella ----------------- 17 Chancelloria sp. --------------- 34 Bavlinella sp., Nation area ---------- 17 IChancelloria Type A- ------------ 36 Bavlinella sp., Eagle area ---------- 18 IChancelloria Type B------------- 36 Sphaerocongregus and Bavlinella -------- 19 Coelenterata ----------------------- 36 Biologic affinity --------------- 19 Class Anthozoa ------------------- Age --------------------- 36 19 Genus Tabulaconus- --------------- 36 Order Nostocales ------------------- 19 Tabulaconus kordeae ------------- 36 Family Nostocaceae --------------- 19 ?Arthropoda ----------------------- 37 Genus Paleonostocalia ------------ 19 Type A- ----------------------- 37 Paleonostocalia irregularia -------- 20 Type B------------------------ ?Cyanobacteria ---------------------- 21 37 Filament Type A------------------- Type C------------------------ 37 21 Metazoa Incertae Sedis ----------------- Filament Type B - - - - - 37 21 Brabbinthes churkini ----------------- Filament Type C - - - - - 22 37 Incertae Sedis ---------------------- Coccoid Type A ----- 22 38 tOldhamia ---------------------- Coccoid Type B ----- 23 38 Type A------------------------ Acritarcha ---------- 23 39 Type B------------------------ Acanthomorphitae 23 39 Acanthomorph Type A 23 Type C------------------------ 39 Acanthomorph Type B-------------- 24 References Cited ----------------------- 40 Protista Incertae Sedis 24 Appendix A Locality descriptions -------------- 44 Type A------- 24 Appendix B Thin-section coordinates for specimens Type B------- 24 illustrated on plates ------------------- 46 Type C------- 25 Appendix C Coordinates for lower left corner of cover slips Type D------- 25 of thin sections --------------------- 48 Type E ------- 26 Index ---------------------------- 49 ILLUSTRATIONS [Plates follow index] PLATE 1. lEoastrion, Tatonduk area. 2. Bavlinella, Obruchevella, other cyanobacterial, protistan, and fungal(?) microfossils, Tatonduk and Eagle areas. 3. Paleonostocalia, Nation area. 4. Paleonostocalia and cyanobacterial(?) microfossils, Nation area. Ill IV CONTENTS PLATE 5. ?Fungi, Nation area. 6. Chancelloria and enigmatic thready structures, Nation area. 7. 1'Chancelloria and stauract spicules, Nation area. 8. Enigmatic thready structures, Nation area. 9. ?Arthropoda and Incertae Sedis, Nation area. 10. Brabbinthes, Nation area. 11. Protista, ?Porifera, and enigmatic microfossils, Nation area. 12. Cylindromyces, Sphaerocongregus, and protistan microfossils, Woodchopper area. 13. Sphaerocongregus, ?Fungi, Woodchopper area. 14. Sphaerocongregus, ?Fungi, Woodchopper area. 15. Sphaerocongregus, Woodchopper area. 16. Sphaerocongregus and protistan microfossils, Woodchopper area. 17. Acanthomorph acritarchs and other protistan microfossils, Woodchopper area. 18. Oldhamia, lOldhamia, Tabulaconus, and ?Arthropoda; Tatonduk, Nation, and
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