摘要
本文首次报道贵州独山地区翁项群上部发现的丰富的孢型化石研究结果,共发现孢子5属,8种和变种,疑源类15属,22种和变种(包括未定种),其中疑源类2个新种,Domasia dushanensis,Pterospermella minutum。通过孢型化石研究,确定翁项群上部为中志留世,相当西欧卢德洛统(Ludlovian)。根据孢型化石研究,讨论了翁项群上部古地理,古气候和沉积环境。
Samples from the upper parts of the Wengxiang Group in Dushan County, Guizhou Province yielded a diverse and well preserved palynomorphs,including spores,Acritarch-s, Chninozoans and Scolecodonts. These spores and Acritarchs include thirty species and varieties, twenty genera, two of which are new, the new species of acritarchs include Do-masia dushanensis, Pterosperomella minutum.
The Palynomorphs from upper parts of the Wengxiang Group is most similar to those assemblages reposted from the Middle Silurian (Ludlovian) of England, but common elements also occur western Europe, Northern America.
Based on palynomorphs data, the Palaeogeography, Palaeoclimatology, and palaeoenvironment are discussed.
出处
《贵州地质》
1993年第1期45-53,共9页
Guizhou Geology
