size:  Look at the picture

Description

[Introduction]: Look carefully at the picture, the representative rare fossils are medium in size, the original natural plate is not repaired, the color is clear, and the main body is beautifully preserved, complete, and pure natural fossils are extinct

[Origin]: Daohugou, Inner Mongolia

[Horizon]: Jiulongshan Formation

[Time]: 170 million years from the Middle Jurassic

[Specification]: The picture has a ruler for reference

[Purpose]: Scientific research, exhibition, popular science, teaching, teaching aids, natural resources collection, gifts to friends, gifts, ornaments.