Which paleontological fossils should be designated as first-class key protected fossils?

Article 4 of the National Classification Standard for Paleontological Fossils clearly stipulates that paleontological fossils with great scientific value, such as studying the origin of life, the origin and evolution of important biological categories, discussing the global or intercontinental stratigraphic correlation and the evolution of key paleogeography and paleoenvironment, should be listed as first-class key protected paleontological fossils. Includes the following contents:

Table 5- 1 Paleontological fossil model specimens officially named in the Classification Table of Major Protected Paleontological Fossils (1).

(2) Important tetrapod vertebrate solid fossils with great scientific value, small quantity, complete preservation or close to complete preservation.

Figure 5- 1 Last Supper-Marcy Swallow

Note: Fossils preserve the predatory state of animals. This specimen is a first-class protected fossil, which is very rare and precious (Photo/Zhao Hongshan). (3) Preserved important tetrapod vertebrate solid fossils with special burial state (Figure 5- 1) or key parts.

(4) Solid fossils of fish-like vertebrates with important evolutionary value that are endemic to China or few in number and well preserved.

(5) Completely preserved invertebrate fossils and higher plant fossils (excluding wood fossils) with extremely outstanding scientific value in studying the origin and evolution of important biological groups.

(6) Giant wood fossils with clear structure or high integrity are preserved.

(7) A nest or nearly a nest of vertebrate egg fossils with intact eggshells, and one or more fossils containing embryonic eggs with taxonomic significance; Large or concentrated vertebrate footprint fossils with obvious characteristics and indicating motion characteristics.

(8) Other first-class protected paleontological fossils determined by the Ministry of Land and Resources.