气候变化领域集成服务门户(CCPortal): Integrated biostratigraphy of Upper Cretaceous deposits from an exceptional continental vertebrate-bearing marine section (Transylvanian Basin, Romania) provides new constraints on the advent of 'dwarf dinosaur' faunas in Eastern Europe

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DOI	10.1016/j.marmicro.2023.102328
	Integrated biostratigraphy of Upper Cretaceous deposits from an exceptional continental vertebrate-bearing marine section (Transylvanian Basin, Romania) provides new constraints on the advent of 'dwarf dinosaur' faunas in Eastern Europe
	Balc, R.; Bindiu-Haitonic, R.; Kovecsi, S. -a.; Vremir, M.; Ducea, M.; Csiki-Sava, Z.; Tabara, D.; Vasile, S.
发表日期	2024
ISSN	0377-8398
EISSN	1872-6186
起始页码	187
卷号	187
英文摘要	The present paper outlines the results of a detailed study of calcareous nannofossils and small foraminifera made on Campanian marine deposits from the southwestern part of the Transylvanian Basin, Romania, part of the marine-to-continental transitional Petresti succession that yielded the oldest temporally well-constrained continental vertebrate remains in this area. These results are integrated with new and previously published palynostratigraphic information as well as with novel detrital zircon geochronometry data. All three groups of fossils (calcareous nannofossils, small foraminifera, and palynomorphs) convergently indicate an early to middle Late Campanian age for the marine part of the Petresti section. Based on detrital zircon analyses, the most likely maximum depositional age of the studied deposits is 76 +/- 1.7 Ma, thus confirming the age supported by microfossil assemblages. Palaeoenvironmental interpretation of the fossil assemblages recovered from the marine part of the Petresti section suggests that despite their flysch-like facies, these beds were deposited in a continental shelf setting, under suboxic conditions and frequent fluctuations in nutrient supply to the seafloor, but quite stable environmental conditions within the water column. The synthesis of all currently available biostratigraphic and geochronologic data from the Petresti succession suggests a middle-late Late Campanian start for the expansion of the emergent land areas that made up the latest Cretaceous Hateg Island, earlier than previously accepted dates (Maastrichtian) for this event. Furthermore, it documents the establishment of a diversified continental vertebrate faunal assemblage by the second half of the Late Campanian on these emergent lands while also providing further evidence for a later, post-Campanian arrival of certain iconic Hateg Island dinosaur groups such as titanosaurs and hadrosauroids. Finally, our data show that kogaionid multituberculate mammals were already members of the earliest known Hateg Island faunas, extending the fossil record of this group from the Maastrichtian into the later part of the middle Late Campanian.
英文关键词	Micropalaeontology; Marine sediments; Palaeoenvironmental reconstruction; Detrital zircon; Campanian; Hateg Island
语种	英语
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:001165397600001
来源期刊	MARINE MICROPALEONTOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303943
作者单位	Babes Bolyai University from Cluj; Babes Bolyai University from Cluj; University of Bucharest; Babes Bolyai University from Cluj; University of Arizona; University of Bucharest; Alexandru Ioan Cuza University
推荐引用方式 GB/T 7714	Balc, R.,Bindiu-Haitonic, R.,Kovecsi, S. -a.,et al. Integrated biostratigraphy of Upper Cretaceous deposits from an exceptional continental vertebrate-bearing marine section (Transylvanian Basin, Romania) provides new constraints on the advent of 'dwarf dinosaur' faunas in Eastern Europe[J],2024,187.
APA	Balc, R..,Bindiu-Haitonic, R..,Kovecsi, S. -a..,Vremir, M..,Ducea, M..,...&Vasile, S..(2024).Integrated biostratigraphy of Upper Cretaceous deposits from an exceptional continental vertebrate-bearing marine section (Transylvanian Basin, Romania) provides new constraints on the advent of 'dwarf dinosaur' faunas in Eastern Europe.MARINE MICROPALEONTOLOGY,187.
MLA	Balc, R.,et al."Integrated biostratigraphy of Upper Cretaceous deposits from an exceptional continental vertebrate-bearing marine section (Transylvanian Basin, Romania) provides new constraints on the advent of 'dwarf dinosaur' faunas in Eastern Europe".MARINE MICROPALEONTOLOGY 187(2024).