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Ordovician limestones in Brechin Quarry, Ontario

Helje Pärnaste

Ph.D.

E-mail: helje.parnaste(ät)ttu.ee
Homepage: www.gi.ee/~helje

Systematics and evolution of the Ordovician trilobites, their implication to the functional morphology, palaeoenvironment, and palaeogeography.

Recent publications

Ebbestad, J. O. R., Högström, A. E. S., Frisk, Å. M., Martma, T., Kaljo, D., Kröger, B., Pärnaste, H. 2015. Terminal Ordovician stratigraphy of the Siljan district, Sweden. GFF 137(1), 44-57. | DOI |

Bergström, J., Pärnaste, H. and Zhou, Z-Y. 2013. Trilobites and biofacies in the Early–Middle Ordovician of Baltica and a brief comparison with the Yangtze Plate. Estonian Journal of Earth Sciences 62(4), 205-230. | DOI |

Liang, K., Lee, D.-L., Elias, R.J., Pärnaste, H. and Mõtus, M.-A. 2013. Growth characteristics of Protoheliolites norvegicus (Tabulata; Upper Ordovician; Estonia). Palaeontology 56(4), 867-891. | DOI |

Pärnaste, H., Bergström, J. 2013. The asaphid trilobite fauna: Its rise and fall in Baltica. Palaeogeography, Palaeoclimatology, Palaeoecology 389, 64-77. | DOI |

Pärnaste, H., Bergström, J. and Zhou, Z-Y. 2013. High-resolution trilobite stratigraphy of the Lower–Middle Ordovician Öland Series of Baltoscandia. Geological Magazine 150(3), 509–518. | DOI |

Hints, L., Pärnaste, H., Gailite, L-I. 2012. Hirnantia sagittifera (Brachiopoda) and Mucronaspis mucronata s.l. (Trilobita) in the Upper Ordovician of the East Baltic: taxonomy and distribution. Estonian Journal of Earth Sciences 61(2), 65-81. | DOI |

Pärnaste, H. & Viira, V. 2012. On the lower boundary of the Floian Stage in Estonia. Estonian Journal of Earth Sciences 61(4), 205–209. | DOI |

Popp, A., Pärnaste, H. 2011. Biometry and life style of the Ordovician proetide trilobite Cyamella stensioei Owens, 1979. GFF 133(3-4), 111-123. | DOI |

Pärnaste, H., Popp, A. 2011. Telephina (Trilobita) record from the Viivikonna Formation of the Kukruse Regional Stage NE Estonia. Estonian Journal of Earth Sciences 60(2), 83-90. | DOI |

Hints, L., Hints, O., Kaljo, D., Kiipli, T., Männik, P., Nõlvak, J. & Pärnaste, H. 2010. Hirnantian (latest Ordovician) bio- and chemostratigraphy of the Stirnas-18 core, western Latvia. Estonian Journal of Earth Sciences 59(1), 1-24. | DOI |

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