Gaoyuzhuang Formation
| Gaoyuzhuang Formation | |
|---|---|
| Stratigraphic range: 1588.8±6.5 Ma [1] | |
| Type | Formation |
| Underlies | Yangzhuang Formation |
| Overlies | Dahongyu Formation |
| Thickness | ~1800 m |
| Location | |
| Country | China |
The Gaoyuzhuang Formation is a geologic formation in China. It preserves fossils dating back to the Calymmian period of the Mesoproterozoic. It is one of the first formations to preserve definitive macroscopic eukaryotes, at almost 1.6 billion years old.[2] In addition to this, the site preserves a diverse microbiota with various cyanobacteria and fungus-like fossils known.[3]
Paleobiota
[edit | edit source]After Chen et al, 2023,[2] Shi et al, 2017,[3] Liu et al, 2015[4] and Seong-Joo & Golubic, 1999[5]
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Paleobiota
[edit | edit source]| Paleobiota | ||||
|---|---|---|---|---|
| Genus | Species | Notes | Images | |
| Grandilingulata |
|
Enigmatic frond-like organism |
 | |
| Tuanshanzia |
|
Enigmatic frond-like organism; possibly within Archaeplastida |
 | |
| Proterotainia |
|
Enigmatic filamentous organism, possibly within Vendotaenida. |
 | |
| Qingshania |
|
Enigmatic filamentous eukaryote | ||
| Ramificansa |
|
Enigmatic filamentous alga, possibly a rhodophyte | ||
| Siphonophycus |
|
Cyanobacteria | ||
| Oscillatoriopsis |
|
Cyanobacteria | ||
| Veteronostocale |
|
Cyanobacteria | ||
| Cyanonema |
|
Cyanobacteria | ||
| Palaeolyngbya |
|
Cyanobacteria | ||
| Coccostratus |
|
Cyanobacteria | ||
| Eoentophysalis |
|
Cyanobacteria | ||
| Eoschizothrix |
|
Cyanobacteria | ||
| Arctacellularia |
|
Cyanobacteria | ||
| Chlorogloeaopsis |
|
Cyanobacteria | ||
| Archaeoellipsoides |
|
Cyanobacteria | ||
| Obruchevella |
|
Cyanobacteria, commonly found in Neoproterozoic sediments | ||
| Changchengonema |
|
Cyanobacteria | ||
| Eoaphanocapsa |
|
Cyanobacteria | ||
| Eosynechococcus |
|
Cyanobacteria | ||
| Myxococcoides |
|
Cyanobacteria | ||
| Palaeoanacystis |
|
Cyanobacteria | ||
| Sphaerophycus |
|
Cyanobacteria | ||
| Tetraphycus |
|
Cyanobacteria | ||
| Saccolyngbya |
|
Cyanobacteria | ||
| Cephalophytarion |
|
Cyanobacteria | ||
| Coniunctiophycus |
|
Acritarch | ||
| Clonophycus |
|
Acritarch | ||
| Leiosphaeridia |
|
Acritarch | ||
| Leioarachnitum |
|
Acritarch | ||
| Trachysphaeridium |
|
Acritarch | ||
| Microconcentrica |
|
Acritarch | ||
| Baltisphaeridium |
|
Acritarch | ||
| Cornutosphaera |
|
Acritarch | ||
| Paleamorpha |
|
Acritarch | ||
In addition to these fossils, five unnamed forms are also known. Forms A and B are only known from one specimen, Form C is too fragmentary to be named, and Forms D and E bear no resemblance to any plant, prokaryote, animal or protist. However, various hyphomycetous fungi do form similar structures to forms D and E, thus they may be within this group.[3]
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).