کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5787922 | 1642045 | 2017 | 50 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Late Cretaceous ostracod fauna from the Shenjiatun section (Songliao Basin, Northeast China): Biostratigraphic and palaeoecological implications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Late Cretaceous ostracod fauna from the Shenjiatun section (Songliao Basin, Northeast China): Biostratigraphic and palaeoecological implications Late Cretaceous ostracod fauna from the Shenjiatun section (Songliao Basin, Northeast China): Biostratigraphic and palaeoecological implications](/preview/png/5787922.png)
چکیده انگلیسی
This work provides the first detailed taxonomic study of ostracod species from the Shenjiatun section (Nenjiang Formation, Songliao Basin, northeast China). Ten species belonging to seven genera are recognized. At the species level, this ostracod fauna shows a high degree of endemicity. The ontogeny of two species is recognized in this study, and sexual dimorphism within Daqingella arca is unequivocally recognized for the first time. The ostracod fauna suggests that this fossil-bearing sedimentary succession should be assigned to members 3-4 (Campanian) of the Nenjiang Formation (mainly Member 3) instead of representing 'Quaternary sediments' as previously thought. On the basis of the ostracod fauna, Member 3 of the Nenjiang Formation at Shenjiatun represents a shallow-littoral, lacustrine depositional environment that, at least in the upper part of Member 3, potentially included less stable conditions characterized by smaller, ephemeral waterbodies and increased (non-marine, oligohaline) salinities through evaporation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cretaceous Research - Volume 78, October 2017, Pages 174-190
Journal: Cretaceous Research - Volume 78, October 2017, Pages 174-190
نویسندگان
Yaqiong Wang, Benjamin Sames, Huanyu Liao, Dangpeng Xi, Yanhong Pan,