WANG, WANG, WANG, XU, TANG, ZHANG, HU, GU & HAO, 1998
Locality: Sihetun, western Liaoning Province, Northeastern China.
Horizon: Yixian Formation, third member, grayish-white tuffaceous coarse-median sandstone with fine gravels, covered by black intermediate-basic volcanic rock.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
Locality: Sihetun, western Liaoning Province, Northeastern China.
Horizon: Yixian Formation, third member, grayish-green medium-fine sandstone with gray and grayish-white siltstone, silty shale in the upper part, grey, grayish-black, grayish-white shale with siltstone, silty mudstone and grayish-white, light yellow tuffinte, tuffaceous sandstone and mudstone in the middle part, light yellow silty mudstone, mudstone with convolute bedding in the lower part.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
Locality: Sihetun, western Liaoning Province, Northeastern China.
Horizon: Yixian Formation, third member, grey, grayish-black, grayish-white shale with light yellow sandstone, siltstone, silty mudstone and more than 10 layers of light yellow tufite, tuffaceous sandstone and mudstone.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
Locality: Sihetun, western Liaoning Province, Northeastern China.
Horizon: Tuchengzi Formation, first member, sandstone and sandstone with gravels, lower vertebrate-bearing horizon.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
Locality: Sihetun, western Liaoning Province, Northeastern China.
Horizon: Tuchengzi Formation, first member, sandstone and sandstone with gravels, upper vertebrate-bearing horizon.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
Locality: Sihetun, western Liaoning Province, Northeastern China.Horizon: Tuchengzi Formation, first member, sandstone and sandstone with gravels, middle 0lower part of the lower vertebrate bearing horizon.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given: