References
- Barnes, C.R., Norford, B.S., and Skevington, D., 1981, The Ordovician system in Canada. International Union of Geological Sciences Publication, 28, 210 p
- Bulman, O.M.B., 1934, On the graptolites prepared by Holm 6, structural characters of some Dictyonema and Desmograptus species from the Ordovician and Silulian rocks of Sweden and the east Baltic region. Arkiv f. Zoologie, 26A (5), 1-52
- Bulman, O.M.B., 1941, Some dichograptids of the Tremadocian and Lower Ordovician. Annals and Magazine of Natural History, 11 (7), 100-121
- Bulman, O.M.B., 1950, Graptolites from the Dictyonema Shales of Quebec. Quarterly Journal of the Geological Society, 106, 63-99 https://doi.org/10.1144/GSL.JGS.1950.106.01-04.05
- Bulman, O.M.B., 1970, Graptolithina. Treatise on Invertebrate Paleontology, Part V, Graptolithina with sections on Enteropneusta and Pterobranchia. 2nd ed., Geological Society of America and University of Kansas Press, 163 p
- Chapman, A.J., Durman, P.N., and Rickards, R.B., 1996, A provisional classification of the graptolite Order Dendroidea. Palaeontological Zoology, 70 (1/2), 189-202
- Cho, H.S., 2003, Early Ordovician Graptolites from the Mungok Formation of Yeongwol Area, Korea. Unpublished Master dissertation, Korea National University of Education, Chungbuk, 127 p
- Choi, D.K., 1998, The Yongwol Group (Cambrian-Ordovician) redefined: a proposal for the stratigraphic nomenclature of the Choson Supergroup. Geosciences Journal, 2, 220-234 https://doi.org/10.1007/BF02910166
- Choi, D.K., Park, G.H., and Kim, D.H., 1994, Tremadocian trilobites from the Mungok Formation, Yeongweol area, Korea. Journal of Paleontoogical Society of Korea, 10, 209-2
- Choi, J.Y., 1993, Conodont biostratigraphy and paleoecology of the Lower Paleozoic Mungok Formation in the Yeongwol-gun and Pyungchang-gun, Korea. Unpublishing MS dissertation, Yonsei University, 124 p
- Cooper, R.A., 1979, Sequence and correlation of Tremadoc graptolite assemblages. Alcheringa, 3, 7-19 https://doi.org/10.1080/03115517908565436
- Cooper, R.A., 1999, Ecostratigraphy, zonation and global correlation of earliest planktic graptolites. Lethaia, 32, 1-16 https://doi.org/10.1111/j.1502-3931.1999.tb00576.x
- Cooper, R.A. and Stewart, I., 1979, The Tremadoc graptolite sequence of Lancefield, Victoria. Palaeontology, 22, 767-797
- Erdtmann, B.-D., 1982, A reorganization and proposed phylogenetic classification of planktic Tremadoc (early Ordovician) dendroid graptolites. Norsk Geologisk Tidsskrift, 62, 121-144
- Fortey, R.A. and Cooper, R.A., 1986, A phylogenetic classification of the graptoloids. Palaeontology, 29, 631-653
- Hall, J., 1851, New genera of fossil corals. American Journal of Science, 2, 398-401
- Hall, J., 1865, Graptolites of the Quebec Group. Geological Survey of Canada, Canadian organic remains, Decade, 2, 1-151
- Hedberg, H.D. (ed.), 1976, International Stratigraphic Guide-a guide to stratigraphic classification, terminology, and procedure: John Wiley and Sons, New York, 200 p
- Hopkinson, J. and Lapworth, C., 1875, On new British graptolites. Annals and Magazine of National History, 5, 149-177
- Jackson, D.E., 1967, Psigraptus, a new genus from the Tremadoc of Yukon, Canada. Geological Magazine, 104, 311-315 https://doi.org/10.1017/S0016756800048895
- Jackson, D.E., 1974, Tremadoc graptolites from Yukon territory, Canada. In Rickards, R.B., Jackson, D.E., and Hughes, C.P. (eds.), Graptolite studies in honour of O.M.B. Bulman, Special Paper in Palaeontology, 13, 35-58
- Jackson, D.E., 1975, New data on Tremadoc graptolites from Yukon, Canada. Palaeontology, 18, 883-887
- Jackson, D.E. and Lenz, A.C., 1999, Occurrence of Psigraptus and Chigraptus gen. nov. in the Tremadoc of the Yukon Territory, Canada. Geological Magazine, 136 (2), 153-157 https://doi.org/10.1017/S0016756899002332
- Jackson, D.E. and Lenz, A.C., 2003, Taxonomic and biostratigraphical significancd of the Tremadoc graptolite fauna from northern Yukon Territory, Canada. Geological Magazine, 140 (2), 131-156 https://doi.org/10.1017/S0016756802007227
- Jin, Y.P., 2002, Biostratigraphy and Paleontology of the early Ordovician graptollites from the Mungok Formation, Yeongwol, Korea. Unpublished Ph.D. dissertation, Korea National University of Education, Chungbuk, 172 p
- Kim, D.H., 1999, Stratigraphy and Paleontology of the Lower Ordovician Mungok Formation, Yongwol, Korea. Unpublished Ph.D. dissertation, Seoul National University, Seoul, 263 p
- Kim, D.H. and Choi, D.K., 1995, Kainella (Trilobita, Early Ordovician) from the Mungok formation of Yeongweol area and its stratigraphic significance. Journal of the Geological Society of Korea, 31, 579-582
- Kim, D.H. and Choi, D.K., 1999, Occurrence of Leiostegium (Trilobita, Early Ordovician) from the Mungok Formation. Journal of the Paleontological Sociey of Korea, 15, 109-114
- Kim, D.H. and Choi, D.K., 2000a, Jujuyaspis and associated trilobites from the Mungok Formation (Lower Ordovician), Yongwol, Korea. Journal of Paleontology, 74, 1031-1042 https://doi.org/10.1666/0022-3360(2000)074<1031:JAATFT>2.0.CO;2
- Kim, D.H. and Choi, D.K., 2000b, Lithostratigraphy and biostratigraphy of the Mungok Formation (Lower Ordovician), Yongwol, Korea. Geosciences Journal, 4, 301-311 https://doi.org/10.1007/BF02914039
- Kim, J.Y., Hwang, K.S., and Park, S.I., 1994, Trace fossils and storm-influenced deposits of the Mungok Formation (Early Ordovician), Yeongwol, Korea. Journal of the Korean Earth Science Society, 15, 115-125
- Kim, J.Y., Cho, H.S., and Erdtmann, B.-D., 2006, Psigraptus jacksoni from the Early Ordovician Mungok Formation, Yeongwol area, Korea: taxonomy and development. Alcheringa, 30, 11-22 https://doi.org/10.1080/03115510608619341
- Kobayashi, T., 1960, The Cambrian-Ordovician formations and faunas of South Korea, Part , Palaeontology . Journal of the Faculty of Science, 2 (3), 217-275
- Kobayashi, T., 1966, Stratigraphy of the Chosen Group in Korea and South Manchuria and its relation to the Cambro-Ordovician Formations of other areas, section A, The Chosen Group of South Korea. Journal of the Faculty of Science, 2 (16), 1-84
- Kobayashi, T. and Kimura, T., 1942, A discovery of a few Lower Ordovician graptolites in south Chosen with a brief note on the Ordovician zones in eastern Asia. Japanese Journal of Geology and Geography, 18, 307-311
- Kobayashi, T., Yosimura, I., Iwaya, Y., and Hukasawa, T., 1942, The Yukusen geosyncline in the Chosen period: brief notes on the geologic history of the Yukosen orogenic zone, 1. Proceedings of the Imperial Academy of Tokyo, 18, 579-584
- Lee, B.S. and Lee, J.D., 1999, Conodonts from the Mungog Formation (Lower Ordovician), Yeongweol. Journal of the Paleontological Society of Korea, 15, 21-42
- Linnarsson, J.G.O., 1871, Om nara forsteningar fran Sveriges och Norges. Ofversigt af Kongl Vetenskaps-Akademiens Forhandlingar, 6, 789-796
- Maletz, J. and Erdtmann, B.D., 1987, Adelograptus tenellus (Linnarsson 1871): Its astogenetic development and its stratigraphical and palaeogeographical distribution. Bulletin of the Geological Society of Denmark, 35, 179-190
- Miller, S.A., 1889, North American geology and palaeontology. Western Methodist Book Concern, Ohio, 664 p
- Mu, A.T., 1953, A preliminary study on the graptolites in Taitzeho valley, Laiotung. Acta Palaeontologica Sinica, 1 (1), 23-35
- Mu, A.T., 1955, The new materials of the dendroid graptolites of China. In Lee, J.S., Young, C.C., Sze, S.C., Sun, Y.C., Yin, T.S., Yu, C.C., and Chen, H., (eds.), Palaeontologia Sinica, Whole Number 138, New Series, B (5), 33-62
- Nicholson, H.A., 1872, Monograph of British Grpatolites. Edinberg and London, 133 p
- Paik, I.S., Woo, K.S., and Chung, G.S., 1991, Stratigraphic, sedimentologic and paleontologic investigation of the Paleozoic sedimentary rocks in Yeongweol and Gabsan areas: depositional environments of the Lower Ordovician Mungog formation in the vicinity of Yeongwol. Journal of the Geological Society of Korea, 27, 357-370
- Park, K.H., Choi, D.K., and Kim, J.H., 1994, The Mungog Formation (Lower Ordovician) in the northern part of Yeongwol area: lithostratigraphic subdivision and trilobite faunal assemblages. Journal of the Geological Society of Korea, 30, 168-181
- Rickards, R.B. and Stait, B.A., 1984, Psigraptus, its classification, evolution and zooid. Alcheringa, 8, 101-111 https://doi.org/10.1080/03115518408618936
- Rickards, R.B., Partridge, P.L., and Bank, M.R., 1991, Psigraptus jacksoni Rickards and Stait-systematics, reconstruction, distribution and preservation. Alcheringa, 15, 243-254 https://doi.org/10.1080/03115519108619022
- Roemer, F., 1897, Lethaea geognostica; Theil 1, Lethaea palaeozoica, 1. Bd., Graptolithiden: (Lief. 1-2 by Roemer, F.; Lief. 3 continued by Frech, F.), 544-684
- Salvador, A. (ed.), 1994, International Stratigraphic Guide-a guide to stratigraphic classification, terminology, and procedure. International Union of Geological Sciences and the Geological Society of America, Inc., Colorado, 214 p
- Stubblefield, C.J. and Bulman, O.M.B., 1927, On the Shineton Shales of the Wrekin district. Quarterly Journal of Geological Society of London, 83, 96-146 https://doi.org/10.1144/GSL.JGS.1927.083.01-05.05
- Vandenberg, A.H.M. and Cooper, R.A., 1992, The Ordovician graptolite sequence of Australasia. Alcheringa, 16, 33-85 https://doi.org/10.1080/03115519208619032
- Wang, X. and Erdtmann, B.-D., 1986, The earlist Ordovician graptolite sequence of Hunjiang, Jilin province, China. Acta Geologica Sinica, 60 (3), 13-27
- Wang, X. and Erdtmann, B.-D., 1987, Zonation and correlation of the earliest Ordovician graptolites from the Hunjang, Jinlin province, China. Bulletin of the Geological Society of Denmark, 35, 245-257
- Wang X. and Wang C., 2001, Tremadocian (Ordovician) graptolite diversification events in China. Alcheringa, 25, 155-168 https://doi.org/10.1080/03115510108619102
- Williams, S.H. and Stevens, R.K., 1991, Late Tremadoc graptolites from western Newfoundland. Palaeontology, 34, 1-47
- Won, M.Z. and Lee, H.Y., 1977, Age and biostratigraphy of the Mungog (Samtaesan) Formation by means of the condont fauna. Journal of the Geological Society of Korea, 13, 97-107
- Yosimura, I., 1940, Geology of the Neietsy (Yeongwol) district, Kogendo (Kangwondo), Chosen. Journal of the Geological Society of Japan, 47, 113-122
- Zhang, Y. and Erdtmann, B.-D., 2004, Tremadocian (Ordovician) biostratigraphy and graptolites at Dayangcha (Baishan, Jilin, NE China). Palaontologische Zeitschrift, 78 (2), 323-354 https://doi.org/10.1007/BF03009229
- Zhao, X.L., Lin, Y.K., and Zhang, S.X., 1988, Xinchangian (early Ordovician) graptolite sequence in Hunjiang area of Jilin with comments on Cambrian- Ordovician Boundary. Acta Palaeontologica Sinica, 27 (2), 188-204