Phylogeny and Adaptive Radiation of the Neograptina (Graptoloida) during the Hirnantian Mass Extinction and Silurian Recovery

Proceedings of the Yorkshire Geological Society

Volumn 58, Issue 4, 2011, Pages 281-309

  Melchin, M J ^a   Mitchell, C E ^b   Naczk Cameron, A ^a   Fan, J X ^c   Loxton, J ^d  

^a ST FRANCIS XAVIER UNIVERSITY   (Canada)

^b UNIVERSITY AT BUFFALO   (United States)

^c NANJING INSTITUTE OF GEOLOGY AND PALAEONTOLOGY   (China)

^d DALHOUSIE UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ADAPTIVE RADIATION; CLADISTICS; GRAPTOLITE; HIRNANTIAN; MASS EXTINCTION; PHYLOGENY; SILURIAN;

GRAPTOLOIDEA; MONOGRAPTIDAE; NORMALOGRAPTIDAE; RETIOLITIDAE;

EID: 84855546368     PISSN: 00440604     EISSN: 20414811     Source Type: Journal    
DOI: 10.1144/pygs.58.4.301     Document Type: Conference Paper

References (127)

1. ANHUI GEOLOGICAL SURVEY TEAM (ed.) 1982. Graptolites from Anhui. Anhui Science and Technology Publishing House, Hefei.
2. Barrande, J. 1850. Graptolites de la Boheme. Published by the author. Prague.
3. Bates, D. E. B., Kozlowska, A. & Lenz, A. C. 2005. Silurian retiolitid graptolites: Morphology and evolution. Acta Palaeonto-logica Polonica, 50, 705-720. (Pubitemid 41800016)
4. Bjerreskov, M. 1975. Llandoverian and Wenlockian graptolites from Bornholm. Fossils and Strata, 8, 1-93.
5. Boucek, B. 1944. O nekterych ostnitych diplograptidech ceskeho a saskeho siluru. Rozpravy Ceske akademie vedaumeni, Tfida 2, 53(25), 1-6.
6. Boucek, B. & Munch, A. 1952. The Central European Retiolites of the Upper Wenlock and Ludlow. Sbornik ustredniho ustavu Geolog-ickeho, oddilpaleontologicky, 19, 1-54 (Czech text), 55-103 (Russian text), 104-151 (German text).
7. Boucek B. & PRibyl, A. 1941. Uber die Gattung Petalolithus Suess aus dem bohemischen Silur. Mitteilungen der Tschechischen Akademie der Wissenschaften, 1-17.
8. Bulman, O. M. B. 1936. Rhaphidograptus, a new graptolite genus. Geological Magazine, 73, 19-26.
9. Bulman, O. M. B. 1955. Graptolithina with sections on Enteropneusta and Pterobranchia. In: Moore, R. M. (ed.) Treatise on Invertebrate Paleontology Pt. V. Geological Society of America and University of Kansas Press, Boulder and Lawrence, 1-101.
10. Bulman, O. M. B. 1970. Graptolithina with sections on Enteropneusta and Pterobranchia. In: Teichert, C. (ed.) Treatise on Invertebrate Paleontology, Pt. V. Geological Society of America and University of Kansas Press, Boulder and Lawrence, 1-163.
11. Bulman, O. M. B. & Rickards, R. B. 1968. Some new diplograptids from the Llandovery of Britain and Scandinavia. Palaeontology, 11, 1-15.
12. Chaletskaya, O. N. 1960. Novye vidy llandovereyski graptolitov Sredney Azii. In: Markovsky, B. P. (ed.) Novye Vidy Drevnikh Rastenii I Bespozvononochnykh SSSR, Chast' II. Moskva, Gosudarstvennoe Nauchno- Teknicheskoje Izdatel'stvo, 373-375.
13. Chen, X. & Lin, Y. K. 1978. Lower Silurian graptolites from Tongzi, northern Guizhou. Memoirs of Nanjing Institute of Geology and Palaeontology, Academia Sinica, 12, 1-76 (in Chinese).
14. Chen, X., Melchin, M. J., Sheets, H. D., Mitchell, C. E. & Fan, J.-X. 2005a. Patterns and processes of latest Ordovician graptolites extinction and recovery based on data from South China. Journal of Paleontology, 79, 842-861. (Pubitemid 41282608)
15. Chen, X., Fan, J.-X., Melchin, M. J. & Mitchell, C. E. 2005b. Hirnantian (latest Ordovician) graptolites from the Upper Yangtze region, China. Palaeontology, 48, 235-280. (Pubitemid 40473080)
16. Churkin, M. & Carter, C. 1970. Early Silurian graptolites from southeastern Alaska and their correlation with graptolitic sequences in North America and the Arctic. Professional Papers U.S. Geological Survey, 653, 1-51.
17. Davies, K. A. 1929. Notes on the graptolite faunas of the Upper Ordovician and Lower Silurian. Geological Magazine, 66, 1-27.
18. Desio, A. 1940. Fossili neosilurici del Fezzan occidentale. Annali del Museo Libico di Storia Naturale, 2, 13-45.
19. Donoghue, P. C. J., Purnell, M. A., Aldridge, R. J. & Zhang, S. 2008. The interrelationships of "complex" conodonts (Vertebrata). Journal of Systematic Palaeontology, 6, 119-153.
20. Elles, G. L. & Wood, E. M. R. 1906. Monograph of British Graptolites, part V. In: Lapworth, C. (ed.) Palaeontographical Society. Monograph of the Palaeontolographical Society, Published by the Palaeontographical Society, London, 181-216.
21. Elles, G. L. & Wood, E. M. R. 1907. Monograph of British Graptolites, part VI. In: Lapworth, C. (ed.) Palaeontographical Society. Monograph of the Palaeontographical Society, Published by the Palaeontographical Society, London, 217-272.
22. Elles, G. L. & Wood, E. M. R. 1908. Monograph of British Graptolites, part VII. In: Lapworth, C. (ed.) Palaeontographical Society. Monograph of the Palaeontographical Society, Published by the Palaeontographical Society, London, 273-258.
23. Fan, J. X. & Chen, X. 2007. Preliminary report on the late Ordovician graptolite extinction in the Yangtze region. Palaeogeography, Pal- aeoclimatology, Palaeoecology, 245, 82-94. (Pubitemid 46274796)
24. Fang, Y. T., Liang, S. J., Zhang, D. L. & Yu, J. L. 1990. Stratigraphy and graptolite fauna of Lishuwo Formation from Wuning, Jiangxi. Nanjing University Publishing House, Nanjing, 1-155 (in Chinese).
25. Finney, S. C., Berry, W. B. N. & Cooper, R. A. 2007. The influence of denitrifying seawater on graptolite extinction and diversification during the Hirnantian (latest Ordovician) mass extinction event. Lethaia, 40, 281-291. (Pubitemid 350027148)
26. Fortey, R. A. & Cooper, R. A. 1986. A phylogenetic classification of the graptoloids. Palaeontology, 29, 631-654.
27. Fortey, R. A., Zhang, Y. & Mellish, C. 2005. The relationships of biserial graptolites. Palaeontology, 48, 1241-1272. (Pubitemid 43096656)
28. Frech, F. 1897. Lethaea geognostica oder Beschreibung und Abbildung fur die Gebirgs-Formationen bezeichnendsten Versteinerungen. Herausgegeben von einer Vereinigung von Palaeontologen, 1. Teil.- Lethaea Palaeozoica. E. Schweizerbart'sche Verlagshandlung, Stuttgart, 544-684.
29. Fu, L. P. & Song, L. S. 1986. Stratigraphy and paleontology of Silurian in Ziyang Region (Transitional Belt). Bulletin of the Xi'an Institute of geology and Mineral Resources, Chinese Academy of Geological Sciences, 14, 1-198 (in Chinese).
30. Goldman, D., Mitchell, C. E., Melchin, M. J., Fan, J. & Wu, S. 2011. Biogeography and Mass Extinction: Extirpation and re-invasion of Normalograptus species (Graptolithina) in the Late Ordovician Palaeo-tropics. Proceedings of the Yorkshire Geological Society, 58, 227-246.
31. Harper, D. A. T. & Williams, S. H. 2002. A relict Ordovician brachiopod fauna from the Parakidograptus acuminatus Biozone (lower Silurian) of the English Lake District. Lethaia, 35, 71-78. (Pubitemid 34290541)
32. Hisinger, H. 1837. Supplementum 1. Lethaea Suecica seu Petrifacta Suecica. D. A. Norstedt et filii, Stockholm, 1-24.
33. Hutt, J. E., Rickards, R. B. & Skevington, D. 1970. Isolated Silurian graptolites from the Bollerup and Klubbedden Stages of Dalarna, Sweden. Geologica et Palaeontologica, 4, 1-23.
34. Jones, O. T. 1909. The Hartfell-Valentian succession in the district around Plynlimon and Pont Erwyd (North Cardiganshire). Quarterly Journal of the Geological Society ofLondon, 65, 463-537.
35. Keble R. A. & Benson' W. N. 1929. Ordovician graptolites of North-west Nelson. Transactions of the New Zealand Institute, 59, 840-863.
36. Koren T. & Bjerreskov M. 1997. Early Llandovery monograptids from Bornholm and the southern Urals: taxonomy and evolution. Bulletin of the Geological Society of Denmark, 44, 1-43.
37. Koren T. & Bjerreskov, M. 1999. The generative phase and first radiation event in the early Silurian monograptid history. Palaeogeography, Palaeoclimatology, Palaeoecology, 154, 3-9. (Pubitemid 29511187)
38. Koren T. N. & Melchin, M. J. 2000. Lowermost Silurian graptolites from the Kurama Range, eastern Uzbekistan. Journal of Paleontology, 74, 1093-1113. (Pubitemid 32145302)
39. Koren T. N., Mikhaylova, N. F. & Tsai, D. T. 1980. Graptolity. In: Apollonov M. K., Bandaletov S. M. & Nikitin, I. F. (eds) Granitsa Ordovika I Silura v Kazakhstane. Nauka Kazakh SSR Publishing House, Alma-Ata, 121-170.
40. Koren T. N., Oradovskaya, M. M., Pylma, L. J., Sobolevskaya, R. F. & Chugaeva M. N. 1983. Granitsa Ordovika I Silura na Severo-Vostoke S.S.S.R. Nauka Publishers, Leningrad, 1-205.
41. Koren T. N. & Rickards, R. B. 1996. Taxonomy and evolution of Llandovery biserial graptoloids from the southern Urals, western Kazakhstan. Special Papers in Palaeontology, 54, 1-103.
42. Koren T. N. & Rickards, R. B. 2004. An unusually diverse Llandovery (Silurian) diplograptid fauna from the southern Urals of Russia and its evolutionary significance. Paleontology, 47, 859-918. (Pubitemid 39033258)
43. Kozlowska-Dawidziuk, A., Lenz, A. C. & Bates, D. E. B. 2003. A new classification of ancorate diplograptids. In: Ortega, G. & Acenolaza G. F. (eds) INSUGEO, Serie Correlation Geologica. Proceedings of the 7th International Graptolite Conference & Field Meeting of the International Subcommission on Silurian Stratigraphy. Cumunicarte Editorial, Tucuman, Argentina, 565-569.
44. Kurck C. 1882. Nagra nya graptolitarter fran Skane. Geologiska Foreningens i Stockholm Forhandlingar, 6, 294-304.
45. LaPorte D. F., Holmden C. et al. 2009. Local and global perspectives on carbon and nitrogen cycling during the Hirnantian glacia- tion. Palaeogeography, Palaeoclimatology, Palaeoecology, 276, 182-195.
46. Lapworth, C. 1873. On an improved classification of the Rhabdophora. Geological Magazine, 10, 500-504, 555-560.
47. Lapworth, C. 1876. On Scottish Monograptidae. Geological Magazine, 3, 308-321, 350-360, 499-507, 544-552.
48. Lapworth, C. 1877. On the graptolites of County Down. Proceedings of the Belfast Naturalists Field Club, 1, 107-147.
49. Lapworth, H. 1900. The Silurian sequence of Rhayader. Quarterly Journal of the Geological Society of London, 56, 67-137.
50. Legrand P. 1970. Les couches a Diplograptus du Tassili de Tarit (Ahnet, Sahara algerien). Bulletin de la Societe d'Historire naturelle de l'Afrique du Nord, 60, 3-58.
51. Legrand P. 1977. Contribution al'etude des graptolites du Llandoverien inferieur de L'Oued in Djerane (Tassili N'Ajjer oriental, Sahara algerien). Bulletin de la Societe d'Historire Naturelle de l'Afrique du Nord, 67, 141-196.
52. Legrand P. 1987. Modo de desarrollo del Suborden Diplograptina (Graptolithina) en el Ordovicico superior y en el Silurico. Implica-ciones taxonomicas. Revista Expanola de Paleontologia, 2, 59-64.
53. Legrand P. 1999. Approche stratigraphique de l'ordovicien terminal et du silurien inferieur du sahara algerien par l'etude des diplograptides (graptolites). Docteur d'Etat es Sciences, Universite Michel de Montaigne, Bordeaux III, unpublished.
54. Legrand P. 2002. La formation des argiles de Tedjert (?Ordovicien terminal-Silurien inferieur) au Tassili Oua-n-Haggar oriental (Sahara algerien) et sa faune graptolitique. Annales de la Societe Geolologique du Nord, Serie 2, 9, 215-229.
55. Lenz, A. C. & Melchin M. J. 1987. Silurian retiolitids from the Cape Phillips Formation, Arctic Islands, Canada. Bulletin of the Geological Society of Denmark, 35, 161-170.
56. Lenz, A. C. & Melchin M. J. 1997. Phylogenetic analysis of the Silurian Retiolitidae. Lethaia, 29, 301-309. (Pubitemid 27367127)
57. Lenz, A. C., Melchin M. J. & Kozlowska, A. 2010. Aeronian and lower Telychian retiolitid graptolites, Arctic Canada. 40. The 20th Canadian Paleontology Conference and Canadian Association of Palynologists, Program and Abstracts, September, 2010, Halifax, Canada.
58. Li, J. 1999. Lower Silurian Graptolites from Southern Anhui. Bulletin of the Nanjing Institute ofGeology and Palaeontology, Academia Sinica, 14, 70-157 (in Chinese, English summary).
59. Li, J. & Ge M. 1981. Development and systematic position of akidograptids. Acta Palaeontologica Sinica, 20, 225-234 (in Chinese).
60. Loydell D. K. 1992. Upper Aeronian and Lower Telychian (Llandovery) graptolites from western Mid-Wales. Part 1. Monograph of the Palaeontographical Society, 146, 1-55, pl.1.
61. Loydell D. K. 2007. Graptolites from the Upper Ordovician and Lower Silurian of Jordan. Special Papers in Palaeontology, 78, 1-66.
62. Loydell D. K. & Maletz J. 2009. Isolated graptolites from the Lituigraptus convolutus biozone (Silurian, Llandovery) of Dalarna, Sweden. Palaeontology, 52, 273-296.
63. Loydell D. K., Mallett A. M., Mikulic, D. G., Kluessendorf, J. & Norby R. D. 2002. Graptolites from near the Ordovician-Silurian boundary in Illinois and Iowa. Journal of Paleontology, 76, 134-137. (Pubitemid 34816979)
64. Lukasik J. J. & Melchin M. J. 1994. Atavograptus primitivus (Li) from the earliest Silurian of Arctic Canada: Implications for monograptid evolution. Journal of Paleontology, 68, 1159-1163.
65. Lukasik J. J. & Melchin M. J. 1997. Morphology and classification of some early Silurian monograptids (Graptoloidea) from the Cape Phillips Formation, Canadian Arctic Islands. Canadian Journal of Earth Sciences, 34, 1128-1149.
66. Maddison D. R. & Maddison W. P. 2000. MacClade 4. Sinauer Associates, Sunderland, Massachusetts.
67. Maletz, J., Carlucci J. & Mitchell, C. E. 2009. Graptoloid cladistics, taxonomy and phylogeny. Bulletin of Geosciences, 84, 7-19.
68. M'Coy F. 1850. On Some New Genera and Species of Silurian Radiata in the Collection of the University of Cambridge. Annual & Magazine of Natural History, ser. 2, 6, 270-290.
69. Melchin M. J. 1987. Late Ordovician and Early Silurian graptolites, Cape Phillips Formation, Canadian Arctic Archipelago. Unpublished PhD thesis, University of Western Ontario, Canada.
70. Melchin M. J. 1989. Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands. Canadian Journal of Earth Science, 26, 1726-1746.
71. Melchin M. J. 1998. Morphology and phylogeny of some Early Silurian 'diplograptid' genera from Cornwallis Island, Arctic Canada. Palaeontology, 41, 263-315.
72. Melchin M. J. 1999. Origin of the Retiolitidae: insights from a new graptolite genus from the early Silurian of Arctic Canada. Lethaia, 32, 261-269. (Pubitemid 30242011)
73. Melchin M. J. 2008. Restudy of some Ordovician-Silurian boundary graptolites from Anticosti Island, Canada, and their biostrati- graphic significance. Lethaia, 41, 155-162. (Pubitemid 351676553)
74. Melchin M. J. & Holmden C. 2006. Carbon isotope chemostratig- raphy of the Llandovery in Arctic Canada: Implications for global correlation and sea-level change. GFF, 128, 173-180. (Pubitemid 44294008)
75. Melchin M. J. & Mitchell C. E. 1991. Late Ordovician extinction in the Graptoloidea. In: Barnes, C. R. & Williams, S. H. (eds) Advances in Ordovician Geology. Geological Survey of Canada, Canada, Paper 90-9, 143-156.
76. Melchin M. J., Koren T. N. & Storch, P. 1998. Global diversity and survivorship patterns of Silurian graptoloids. In: Landing, E. & Johnson, M. E. (eds) Silurian Cycles: Linkages of Dynamic Stratigraphy with Atmospheric, Oceanic, and Tectonic Changes, James Hall Centennial Volume. New York State Museum, Bulletin, 491, 165-182.
77. Melchin M. J., Naczk-Cameron A. & Koren', T. N. 2003. New insights into the phylogeny of Rhuddanian (Lower Llandovery) graptolites. In: Ortega, G. & Acenolaza, G. F. (eds) INSUGEO, Serie Correlation Geologica. Proceedings of the 7th International Graptolite Conference & Field Meeting of the International Subcom- mission on Silurian Stratigraphy. Cumunicarte Editorial, Tucuman, Argentina, 67-68.
78. Melchin M. J., Naczk-Cameron A. & Koren', T. N. 2004. New insights into the phylogeny of Rhuddanian (Lower Llandovery) graptolites. 38. Canadian Paleontology Conference, 2004. St. Andrews, NB.
79. Melchin M. J., Naczk-Cameron A. & Koren', T. N. 2005. Phylo- genetic Analysis of some Rhuddanian (Lower Llandovery, Silurian) Graptolites. North American Paleontological Convention, Halifax, Nova Scotia, June 19-25, 2005, Program and Abstracts, 84-85.
80. Mitchell, C. E. 1987. Evolution and phylogenetic classification of the Diplograptacea. Palaeontology, 30, 353-405.
81. Mitchell, C. E. 1990. Directional macroevolution of the diplograp- tacean graptolites: a product of astogenetic heterochrony and directed speciation. In: Taylor, P. D. & Larwood, G. P. (eds) Major Evolutionary Radiations. Systematics Association Special Volume, Clarendon Press, Oxford, 235-264.
82. Mitchell, C. E., Goldman, D., Klosterman, S. L., Maletz, J., Sheets, H. D. & Melchin, M. J. 2007a. Phylogeny of the Ordovician Diplograptoidea. Acta Palaeontologica Sinica, 46 (supplement), 332-339.
83. Mitchell, C. E., Sheets, H. D., et al. 2007b. Species abundance changes during mass extinction and the inverse Signor-Lipps effect: apparently abrupt graptolite mass extinction as an artifact of sampling. Acta Palaeontologica Sinica, 46 (supplement), 340-346.
84. Mitchell, C. E., Storch, P., Holmden, C, Melchin, M. J. & Gutierrez-Marco, J. C. 2011. New stable isotope data and fossils from the Hirnantian Stage in Bohemia and Spain: Implications for correlation and paleoclimate. 371-378. .Gutierrez-Marco, J. C., Rabano, I. & Garcia-Bellido D. (eds.), Ordovician of the World. Cuadernos del Museo Geominera, 14. Instituto Geologico y Minero de Espana, Madrid.
85. Mu E., LI J., GE M., Chen X., Ni Y., Lin, Y. & Mu, H.-N. 1974. Silurian Graptoloidea. 211-231. In: Nanjing Institute Of Geology And Palaeontology, A. S. (ed.) A handbook of the stratigraphy and paleontology in southwest China. Science Press, Nanjing.
86. Naczk-Cameron A. 2000. Systematics and Phylogeny of some early Silurian graptolites: Glyptograptus and related genera. Unpublished MSc thesis, St. Francis Xavier University, Canada.
87. NANJING INSTITUTE OF GEOLOGY AND PALAEONTOLOGY (ed.) 1983. Palaeontological Atlas of East China, 1. Early Paleozoic. Geological Publishing House, Beijing, 1-657 (in Chinese).
88. Nicholson, H. A. 1868. On the graptolites of the Coniston Flags; with notes on the British species of the genus Graptolites. Quarterly Journal of the Geological Society of London, 24, 521-545.
89. Nicholson, H. A. 1869. On some new species of graptolites. Annals and Magazine of Natural History, series 4, 4, 231-242.
90. Obut A. M. 1955. Graptolity. Polevoy Atlas Ordovicoy y Silurskoy Fauny Siberskoy Platformy. Gosgeoltechizdat, Moscow, 136-139.
91. OBUT, A. M. 1965. Graptolity silura omulevsky gor (bassein reki Kolymy). Stratigrafiya y Paleontologiya Paleozoya Aziatskoy Chasti CCCP, Moscow, 33-46.
92. OBUT, A. M. & Sennikov N. V. 1985. Ocobennocti llandoveriyckich planktontovich coobschestv Sibirskoy Platformi. In: Betechtuna, O. A. & Zhuravleva I. T. (eds) Sreda y Jizn v Geologichechom Proshlom (Paleobasseiny i ich Obitateli). Trudy Instituta Geologii I Geofiziki, Nauka Publishing House, Novosibirsk, 628, 51-60.
93. OBUT, A. M. & Sobolevskaya R. F. 1966. Graptolitit rannego silura i Kazachstane. Akademii Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii Geofiziki, Ministerstvo Geologii SSSR, Nauchno-issledovatelskie Institut Geologii Arktiki, 1-56.
94. OBUT, A. M., Sobolevskaya R. F. & Merkur'eva, A. P. 1968. Graptolity Llandoveri v kernach burovitch skvazhin Norilskogo raiona. Akademia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii I Geofiziki, Ministerstvo Geologii SSSR, Nauchno- Issledovatel'sky Institut Geologii Arktiki. Moscow, 1-137.
95. OBUT, A. M., Sobolevskaya R. F. & Nikolaev, A. A. 1967. Graptoliti y stratigrafiya nizhnego silura okainnykh podnyatii kolym-skogo massifa. Akademiya Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii I Geofiziki, Ministerstvo Geologii SSSR, Nauchno-Issledovatel'sky Institut Geologii Arktiki. Sibirskoe otdelenije, Institut Geologii I Geofiziki, Moscow, 1-162.
96. Packham G. H. 1962. Some diplograptids from the British Lower Silurian. Palaeontology, 5, 498-526.
97. PaskeviCius, J. 1976. On some new Llandoverian diplograptids of the eastern Baltic. In: Kaljo, D. & Koren', T. N. (eds) Graptolites and Stratigraphy. Academy of Sciences of Estonian SSR, Institute of Geology, Tallinn, 140-151.
98. Perner J. 1895. Estudes sur les Graptolites de Boheme: II Partie, Monographie des Graptolites de V Etage D. Raimond Gerhard, Prague.
99. PRibyl A. 1947. Classification of the genus Climacograptus Hall 1865. Bulletin International de l'Academie Tcheque des Sciences, Prague, 48, 1-12.
100. PRibyl, A. 1948. Nekolik novych graptolitovych podrodu z celedi Dimorphograptidae a Diplograptidae. Vestnik Statniho geologick-eho ustavu Ceskoslovenske Republicky, 23, 37-48.
101. Rickards R. B. 1970. The Llandovery (Silurian) graptolites of the Howgill Fells, northern England. Palaeontographical Society Monograph, 123, 1-108.
102. Rickards R. B. 1972. Climacograptus scalaris (Hisinger) and the subgenus Glyptograptus (Pseudoglyptograptus ). Geologiska Foreningens Stockholm Forhandlingar, 94, 271-280.
103. Rickards R. B. & Hutt J. E. 1970. The earliest monograptid. Proceedings of the Geological Society of London, 1663, 115-119.
104. Rickards R. B., Hutt J. E. & Berry, W. B.N. 1977. Evolution of Silurian and Devonian graptoloids. Bulletin of the British Museum (Natural History), Geology, 28, 1-120.
105. Rickards R. B. & Koren T. N. 1974. Virgellar meshwork and sicular spinosity in Llandovery graptoloids. Geological Magazine, 111, 193-204.
106. Rickards R. B., Ortega G., Bassett, M., Boso, M. A. & Monaldi, C. R. 2002. Talacastograptus, an unusual biserial graptolite, and other Silurian forms from Argentina and Bolivia. Ameghiniana, 39, 343-350. (Pubitemid 36280863)
107. Russel J. C., Melchin M. J. & Koren', T. N. 2000. Development, taxonomy, and phylogenetic relationships of species of Para- climacograptus (Graptoloidea) from the Canadian Arctic and the southern Urals of Russia. Journal of Paleontology, 74, 84-91. (Pubitemid 30086475)
108. Sadler, P. M., Cooper, R. A. & Melchin, M. J. 2009. A new approach to constructing high resolution time scales and an example from the Early Paleozoic. Bulletin of the Geological Society of America, 121, 887-906.
109. Sadler, P. M., Cooper, R. A. & Melchin, M. J. 2011. Sequencing the Graptoloid Clade: building a global diversity curve from local range-charts, regional composites and global time-lines. Proceedings of the Yorkshire Geological Society, 58, 329-344.
110. Sennikov N. V. 1976. Graptolity y stratigrafiya nizhnego silura Gornogo Altaya. Akademiya Nauk SSSR, Sibirskoe otdelenie, Institut geologii i geofiziki, Trudy, 1-230.
111. Sobolevskaya R. F. 1974. Novye Ashgillskie graptolity v basseine srednego techenia r Kolymy. In: Obut, A. M. (ed.) Graptolites of the USSR. Nauka, Siberian Branch, Novosibirsk, 63-71 (in Russian).
112. Storch P. 1983. The genu. Diplograptus (Graptolithina) from the lower Silurian of Bohemia. Vestnik Ustredniho ustavu geologickeho, 58, 159-170.
113. Storch P. 1985. Orthograptus s.l. and Cystograptus (Graptolithina) from the Bohemian lower Silurian. Vestnik Ustredniho ustavu geologickeho, 60, 87-99.
114. Storch P. 1989. Late Ordovician graptolites from the upper part of the KraluvDvur Formation of the Prague Basin (Barrandian, Bohemia). Vestnik Ustredniho ustavu geologickeho, 64, 173-186.
115. Storch P. & Feist R. 2008. Lowermost Silurian graptolites of Montagne Noire, France. Journal of Paleontology, 82, 938956.
116. Storch P. & Loydell D. K. 1996. The Hirnantian graptolites Normalograptus persculptus and "Glyptograptus" bohemicus: Strati- graphical consequences of their synonymy. Palaeontology, 39, 869-881. (Pubitemid 126593756)
117. Storch P. & Serpagli E. 1993. Lower Silurian graptolites from southwest Sardinia. Bollettino della Societa Paleontologica Italiana, 32, 3-57. (Pubitemid 24428751)
118. Storch P Mitchell, C. E., Finney, S. C. & Melchin, M. J. 2011. Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A. Bulletin of Geosciences, 86, 301-386.
119. Suess E. 1851. Uber bohmische Graptolithen. Naturwissenschaftliche Abhandlungen von W. Haidinger, 4, 87-134.
120. Swofford D. L. 2002. PAUP. Phylogenetic Analysis Using Parsimony (and Other Methods). Sinauer Associates, Sunderland, Massachusetts.
121. TornquisT S. L. 1890. Undersokningar ofver Siljansomradets graptoliter, I. Lunds Universitets Arsskrifter, 26, 33.
122. Underwood, C. J. 1998. Population structure of graptolite assemblages. Lethaia, 31, 33-41.
123. Urbanek A. 1997. The emergence and evolution of linograptids. In: Urbanek A. & Teller, L. (eds) Silurian Graptolite Faunas in the East European Platform: Stratigraphy and Evolution. Palaeontologica Polonica, 56, 233-269.
124. Williams, S. H. 1983. The Ordovician-Silurian boundary graptolite fauna of Dob's Linn, southern Scotland. Palaeontology, 26, 605-639. (Pubitemid 16299044)
125. Ye, S. 1978. Class Graptolithina. In: CHENGDU INSTITUTE OF GEOLOGY AND MINERAL RESOURCES (ed.) PartI. From Sinian to Devonian, Atlas ofFossils ofSouthwest China. Geological Publishing House, Beijing, China, 431-686 (in Chinese).
126. Zalasiewicz, J. 1996. Aeronian (Silurian: Llandovery) graptolites from central Wales. Geologica et Palaeontologica, 30, 1-14.
127. Zalasiewicz, J. & Tunnicliff, S. 1994. Uppermost Ordovician to Lower Silurian graptolite biostratigraphy of the Wye Valley, central Wales. Palaeontology, 37, 695-720.