下三叠统海相烃源岩是下扬子区最有利的烃源岩，陆相沉积也具有一定的生烃潜力。
The Lower Triassic Marine source rock is the most favorable one in the Lower Yangtze area, and the continental deposit has certain hydrocarbon generating potential.
贵州紫云石头寨二叠系生物礁型古油藏是滇黔桂地区上古生界生物礁型古油藏的典型代表。
The Shitouzhai Permian paleo-oil reservoir in Guizhou province is a typical example of numerous Upper Paleozoic reef-type paleo-oil reservoirs in the Yunnan, Guizhou and Guangxi region.
(古生)板足鲎目的：一种巨大的、有节的，属于板足鲎目的水生节肢动物，生存于奥陶纪到二叠纪时期。
Eurypterid: any of various large segmented aquatic arthropods of the order eurypterida that existed from the ordovician period to the Permian period.
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