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本文记述了海拉尔盆地红旗凹陷红D-1井(深805-385m)和红D-3井(深727.1-723.4m)白垩纪非海相微体浮游藻类16属24种,分属于沟鞭藻类9属14种,包括1个新联合种:Protoelipsodiniumfibratum(BatenetLister)comb.nov.,绿藻5属6种,包括1新种:Te-trastrumminorsp.nov.,和疑源类2属4种;其中有些淡水绿藻(Tetrastrum属和Tetraedron属)的化石在我国尚属首次报道。文中建立了3个藻类组合:自下而上是Protoelipsodiniumfi-bratum-Dinogymniopsisdaqingensis组合(即组合A),Nyktericysta-Vesperopsis-Leiosphaeridia组合(组合B)和Dinogymniopsistuberculata-D.granulata组合(组合C),论述了藻类的组合特征并与国内外有关的藻类组合进行了对比,较详细地讨论了这些藻类组合的地质时代应为白垩纪(依次很可能为Baremian期、Barremian-Aptian期和Cenomanian早期),认为它们反映了?
This paper describes 24 Cretaceous non-marine microflora of 16 algae from the red D-1 well (deep 805-385 m) and red D-3 well (deep 727.1-723.4 m) in the Hongqi Sag of the Hailaer Basin, There are 14 species of 9 genera of dinoflagellates, including 1 new species: Protoelipsodiniumfibratum (BatenetLister) comb. nov , 5 genera and 6 species of green algae, including 1 new species: Te-trastrumminorsp. nov , And 4 genera of genus Providence. Some of the fossils of Tetrastrus and Tetraedon are the first reported in China. Three algae combinations were established in the paper: bottom-up combination of Protoelipsodiniumfi-bratum-Dinogymniopsis daqingensis (ie combination A), Nyktericysta-Vesperopsis-Leiosphaeridia combination (combination B) and Dinogymniopsistuberculata-D. The granulata assemblage (combination C) discusses the assemblage characteristics of algae and compares them with the relevant algal assemblages at home and abroad. The geologic epoch of these algal assemblages should be discussed in more detail as Cretaceous (most likely Baremian, Barremian- Aptian and Cenomanian), think they reflect?