Dendroids from the Strata Near the Cambrian—Ordovician Boundary of Taoyuan, Hunan Province[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1987,26(4):49-58.
Dendroids from the Strata Near the Cambrian—Ordovician Boundary of Taoyuan, Hunan Province[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1987,26(4):49-58.DOI:
Dendroid graptolites of the late Cambrian and early Ordovican from Taoyuan
Hunan are dealt with in this paper. They consist of 40 species and subspecies assigned to 9 genera
of which there are 11 new species. At this locality Late Cambrian and Tremadoc stage (early Ordovician) contain four graptolite zones as follows: Heterograptus zone
Anisograptus zone
Dictyograptus flabelliformis zone
Dictyograptus wutingshanensis zone. These dendroids found from the key strata are very importent for the study and correlation of Cambrian-Ordovician boundary