摘要
本文首次报道了松辽盆地白垩系中发现的枝角类(Cladocera)卵鞍化石。记述了1新种、2未定种:Ceriodaphnia toutainensis sp.nov.ephippium,C.sp.ephippium,Moinasp.ephippium。枝角类卵鞍化石为陆相沉积的良好标志。松辽盆地嫩江组三段发现的卵鞍化石全为单卵鞍,推测产此化石的地区当时为湖盆的浅水区,沉积环境正常。
The materials studied in this paper were obtained from the core of the 1stand 3rd Members of the upper Lower Cretaceous Nenjiang Formation in theSongliao Basin, with 1 new species and 2 indeterminate species separately refer-red to the genus Ceriodaphnia of the Daphnidae and the genus Moina of theMoinidae. The discovery of fossil cladoceran ephippia is significant in that it is forthe first time these fossils have ever been found from the Cretaceous in theworld and that it contributes to a better understanding of the biostratigraphyof the upper Lower Cretaceous in the Songliao Basin.
出处
《微体古生物学报》
CSCD
北大核心
1990年第1期77-81,111,共5页
Acta Micropalaeontologica Sinica
