Lagoonal wetland flora in whooper swan ( cygnus cygnus ) nature reserve in rongcheng of shandong .

荣成大天鹅自然保卫区泻湖湿地植物区系。

In the jurassic and cretaceous , generally it was also the shelf sea ( shallow sea ) , but there were lacustrine and lagoonal environments in different parts of the basin .

侏罗纪－白垩纪在总的浅海陆棚环境下，盆地不同地区也形成了湖泊和湖环境。