Chuanlinggou Formation

Chuanlinggou Formation
Stratigraphic range: 1641.7 ± 1.2 Ma [1]
Type	Formation
Underlies	Tuanshanzi Formation
Overlies	Changzhougou Formation
Location
Country	China

The Chuanlinggou Formation is a geologic formation in China. It preserves fossils dating back to the Statherian period of the Paleoproterozoic. It is the first formation to preserve definitive macroscopic eukaryotes, at 1.64 billion years old. ^{[2] [3]}

Paleobiota

After Miao et al, 2024, ^[3] Liu et al, 2023 ^[2] and Zhongying 1986 ^[4]

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Paleobiota

Paleobiota
Genus	Species	Notes	Images
Qingshania	Q. magnifica	Enigmatic filamentous eukaryote
Tuanshanzia	T. sp	Enigmatic frond-like organism; possibly within Archaeplastida	A restoration of Tuanshanzia fasciaria
Changchengia	C. sp	Enigmatic frond-like organism, possibly within Archaeplastida	A restoration of Changchengia sp.
Glossophyton	G. ovalis G. sp	Enigmatic fossil, possibly an alga
Chuaria	C. circularis	Enigmatic fossil, possibly synonymous with Tawuia
Tawuia	T. sinensis T. robusta	Enigmatic fossil, possibly an alga	A restoration of Tawuia sinensis
Siphonophycus	S. sp	Filamentous fossil
Eomycetopsis	E. sp	Filamentous fossil
Archaeotrichion	A. sp	Filamentous fossil
Leiosphaeridia	L. sp	Acritarch
Kildinosphaera	K. sp	Acritarch

References

1. Zhang, Shuan‐Hong; Kamo, Sandra L.; Ernst, Richard E.; Hu, Guo‐Hui; Zhang, Qi‐Qi; El Bilali, Hafida; Zhao, Yue (28 September 2024). "First High‐Precision U–Pb CA–ID–TIMS Age of the Chuanlinggou Formation, North China Craton: Implications for Global Correlations of Black Shales and the Statherian/Calymmian Boundary". Geophysical Research Letters. 51 (18). doi: 10.1029/2024GL109457 .
2. Liu, Jingqi; Zhang, Yang; Shi, Xiaoying; Chen, Anfeng; Tang, Dongjie; Yang, Tinglu (November 2023). "Macroscopic fossils from the Chuanlinggou Formation of North China: evidence for an earlier origin of multicellular algae in the late Palaeoproterozoic". Palaeontology. 66 (6). doi:10.1111/pala.12685.
3. Miao, Lanyun; Yin, Zongjun; Knoll, Andrew H.; Qu, Yuangao; Zhu, Maoyan (26 January 2024). "1.63-billion-year-old multicellular eukaryotes from the Chuanlinggou Formation in North China". Science Advances. 10 (4). doi:10.1126/sciadv.adk3208. PMC   10807817 .
4. Zhongying, Zhang (1 December 1986). "Clastic facies microfossils from the Chuanlinggou Formation (1800 Ma) near Jixian, North China". Journal of Micropalaeontology. 5 (2): 9–16. doi: 10.1144/jm.5.2.9 .