REFERENCES
- Achab, A., Rubinstein, C.V. & Astini, R.A., 2006: Chitinozoans and acritarchs from the Ordovician peri-Gondwana volcanic arc of the Famatina System, northwestern Argentina. Review of Palaeobotany and Palynology139, 129–149.
- Bureau of Geology of Guizhou Province, 1978: Geological Report of the Tongzi area (with Geological Map of 1:200 000). Bureau of Geology of Guizhou Province. 183 pp (in Chinese).
- Chen, P. & Zhan, R., 2006: The Lower to Middle ordovician Dawan formation and its coeval rocks in the Yangtze region. Journal of Stratigraphy30, 11–20.
- De la Puente, G.S. & Rubinstein, C.V., 2013: Ordovician chitinozoans and marine phytoplankton of the Central Andean Basin, northwestern Argentina: a biostratigraphic and paleobiogeographic approach. Review of Palaeobotany and Palynology198, 14–26.
- Fang, X., 1986: Ordovician micropalaeoflora in Kunming–Luquan region, Yunnan Province and its stratigraphical significance. Professional Papers of Stratigraphy and Palaeontology16, 125–172 (in Chinese with English abstract).
- Fang, X. & Hou, J., 1988: Silurian microflora and chitinozoa in Guanyinqiao, Qijiang County, Sichuan Province, and their stratigraphic significance. Professional Papers of Stratigraphy and Palaeontology20, 198–209 (in Chinese with English abstract).
- Li, J., 1987: Ordovician acritarchs from the Meitan Formation of Guizhou province, south-west China. Palaeontology30, 613–634.
- Li, J., 1989: Early Ordovician Mediterranean province acritarchs for Upper Yangtze Region, China. In Chinese Academy of Science (ed.): Developments in Geoscience: Contribution to the 28th Geological Congress 1989, 231–234. Science Press, Washington, D.C.
- Li, J., Servais, T. & Brocke, R., 2002a: Chinese Palaeozoic acritarchs: review and perspectives. Review of Palaeobotany and Palynology118, 181–193.
- Li, J., Servais, T. & Yan, K., 2010: Acritarch biostratigraphy of the Lower–Middle Ordovician boundary: the Global Stratotype Section and Point (GSSP) of Huanghuachang, South China. Newsletter on Stratigraphy43, 235–250.
- Li, J., Servais, T., Yan, K. & Zhu, H., 2004: A nearshore–offshore trend in the acritarch distribution of the Early–Middle Ordovician of the Yangtze Platform, South China. Review of Palaeonbotany and Palynology130, 141–161.
- Li, J., Wang, Y., Servais, T. & Brocke, R., 2002b: Ordovician acritarchs from Meitan Formation of Huanghuachong, Guizhou, South China. Acta Palaeontologica Sinica41, 95–102 (in Chinese with English abstract).
- Li, J. & Yuan, X., 1998: Arenigian acritarchs from the Chaochiapa Formation of Ningqing County, Shaanxi Province. Acta Micropalaeontologica Sinica15, 272–285 (in Chinese with English abstract).
- Molyneux, S.G., 2009: Acritarch (marine microphytoplankton) diversity in an Early Ordovician deep-water setting (the Skiddaw Group, northern England): implications for the relationship between sea-level change and phytoplankton diversity. Palaeogeography, Palaeoclimatology, Palaeoecology275, 59–76.
- Playford, G., Ribecai, C. & Tongiorgi, M., 1995: Ordovician acritarch genera Peteinosphaeridium,Liliosphaeridium, and Cycloposphaeridium: morphology, taxonomy, biostratigraphy, and palaeogeographic significance. Bollettino della Società Paleontologica Italiana34, 3–54.
- Quintavalle, M. & Playford, G., 2006: Palynostratigraphy of Ordovician strata, Canning Basin, Western Australia. Part 1: acritarchs and prasinophytes. Palaeontographica Abteilung B275, 1–88.
- Raevskaya, E., Vecoli, M., Bednarczyk, W. & Tongiorgi, M., 2004: Billingen (Lower Arenig/Lower Ordovician) acritarchs from the East European Platform and their palaeobiogeographic significance. Lethaia37, 97–111.
- Ribecai, C., Raevskaya, E. & Tongiorgi, M., 2002: Sacculidium gen. nov. (Acritarcha), a new representative of the Ordovician Stelomorpha-Tranvikium plexus. Review of Palaeobotany and Palynology121, 163–203.
- Tongiorgi, M., Yin, L. & Di Milia, A., 2003: Lower Yushangian to Zhejiangian palynology of the Yangtze Gorges area (Daping and Huanghuachang Sections), Hubei province, South China. Palaeontographica Abteilung B266, 1–160.
- Vecoli, M., 1999: Cambro-Ordovician palynostratigraphy (acritarchs and prasinophytes) of the Hassi-R'Mel area and northern Rhadames Basin, North Africa. Palaeontographia Italica86, 1–112.
- Xu, W., 2001: Acritarchs and its organic stratigeochemistry from the Arenigian in the Sandu area. Xuzhou: China University of Mining and Technology Press. 140 pp (in Chinese with English summary).
- Yan, K., 2007: Ordovician acritarchs in South China: biodiversity and paleobiogeography. Ph. D. thesis. Nanjing Institute of geology and palaeontology, Chinese Academy of Sciences, Nanjing, China. 227 pp (in Chinese with English summary).
- Yan, K. & Li, J., 2005: Ordovician biostratigraphy of acritarchs from the Meitan Formation of Honghuayuan Section, Tongzi, Guizhou, Southwest China. Journal of Stratigraphy29, 236–256 (in Chinese with English abstract).
- Yan, K., Li, J. & Servais, T., 2013: An Early–Middle Ordovician acritarch and prasinophyte assemblage from Houping, Chongqing city, South China: Biostratigraphical and palaeoenvironmental implications. Review of Palaeobotany and Palynology198, 110–133.
- Yan, K., Servais, T. & Li, J., 2010: Revision of the Ordovician acritarch genus Ampullula Righi 1991. Review of Palaeobotany and Palynology163, 11–25.
- Yan, K., Servais, T., Li, J., Wu, R. & Tang, P., 2011: Biodiversity patterns of Early-Middle Ordovician marine microphytoplankton in South China. Palaeogeography, Palaeoclimatology, Palaeoecology299, 318–334.
- Yin, L., 1995: Early Ordovician Acritarchs from Hunjiang Region, Jilin, and Yichang Region, Hubei province, China. Palaeontologica Sinica New Series A 185, Beijing: Science Press. 170 pp (in Chinese with English summary).
- Yin, L. & Playford, G., 2003: Middle Ordovician acritarchs from the Global Stratotype Section of Huangnitang in Changshan, Zhejiang, China. Acta Palaeontologica Sinica42, 89–103 (in English with Chinese abstract).
- Yu, C., 1933: Notes on the hiatus between the Ichang limestone and Neichia formation. Bulletin of the Geological Society of China12, 39–42.
- Zhang, W., Xu, H., Chen, X., Chen, J., Yuan, K., Lin, Y. & Wang, J., 1964: Ordovician of northern Guizhou. In Nanjing Institute of Geology and Palaeontology (ed.): Palaeozoic rocks from northern Guizhou, 33–78. Nanjing: Nanjing Institute of Geology and Palaeontology (in Chinese).
- Zhang, Y., Chen, X., Goldman, D., Zhang, J., Cheng, J., & Song, Y., 2010: Diversity and paleobiogeographic distribution patterns of Early and Middle Ordovician graptolites in distinct depositional environments of South China. Science in China (Series D)53, 1811–1827.
- Zhang, Y., Zhou, Z., & Zhang, J., 2002: Sedimentary differentiation during the latest early Ordovician – earliest Darriwilian in the Yangtze block. Journal of Stratigraphy26, 302–314 (in Chinese with English abstract).