Haifanggou Formation Stratigraphic range: Middle Jurassic |
|
---|---|
Type | Geological formation |
Underlies | Tiaojishan Formation |
Overlies | Beipiao Formation |
Lithology | |
Primary | Conglomerate |
Other | Sandstone, mudstone, coal |
Location | |
Region | Inner Mongolia |
Country | China |
The Haifanggou Formation (also known as the Jiulongshan Formation) is a fossil-bearing rock deposit located in northeastern China, near Daohugou village of Ningcheng County. The rocks consists of coarse conglomerates, sandstone, mudstone and thin coal layers. The formation dates from the Middle Jurassic.[1]
Contents |
Color key
|
Notes Uncertain or tentative data are in small text; |
Insects of the Haifanggou Formation | |||||
---|---|---|---|---|---|
Genus | Species | Year of description | Abundance | Notes | Images |
|
A. neimengguensis[2] |
||||
F. macularis[3] |
1 specimen |
||||
J. astictus[3] |
1 specimen |
||||
M. daohugoensis[4] |
1 specimen |
||||
|
S. ningchengensis[5] |
An aphid |
Plants of the Haifanggou Formation | |||||
---|---|---|---|---|---|
Genus | Species | State | Abundance | Notes | Images |
S. sinensis[6] |
A possible early flowering plant |
||||
X. sinensis[7] |
An early flowering plant |