YaoMoShan Fm., HongShiGou and MengYuan Counties, QingHai Prov., China (Ordovician of China)

Where: QingHai, China (38.0° N, 101.0° E: paleocoordinates 26.2° S, 118.7° E)

• local area-level geographic resolution

When: YaoMoShan Formation, Llandeilo (461.1 - 458.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, green, sandy shale and wackestone

• grayish green phyllite and wackestone with sandstone at bottom

Primary reference: Stratigraphic Group of Quing Hai Province. 1980. Regional stratigraphic tables of the north western China region: Volume of NinXia Province. Geological Publishing House, Beijing, China [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8679: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 24.08.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

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Pterobranchia
  -
Trigonograptus sp.
Trigonograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Glossograptidae
Glossograptus sp.
 Graptoloidea - Dicranograptidae
Dicellograptus sp., Nemagraptus sp.
Dicellograptus sp. Hopkinson 1871 graptolite
Nemagraptus sp. graptolite
 Graptoloidea - Diplograptidae
Orthograptus sp., Amplexograptus sp.
Orthograptus sp. Lapworth 1873 graptolite
Amplexograptus sp. graptolite
 Graptoloidea - Dichograptidae
Didymograptus sp.
Didymograptus sp. McCoy 1851 graptolite
Gastropoda
 Murchisoniina - Hormotomidae
Hormotoma sp.
Hormotoma sp. Salter 1859 snail
 Bellerophontida -
Bellerophontoidea indet.
Bellerophontoidea indet. M'Coy 1851 snail
 Bellerophontida - Bucanellidae
Bucanella sp.
Bucanella sp. Meek 1871 snail
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
 Strophomenida - Furcitellidae
Oepikina sp.
Oepikina sp. Salmon 1942
 Orthotetida - Triplesiidae
Cliftonia sp.
Cliftonia sp. Foerste 1909
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella sp.
Dalmanella sp. Hall and Clarke 1892
Trilobita
 Asaphida - Remopleurididae
Remopleurides sp.
Remopleurides sp. Portlock 1843 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas sp.
Lonchodomas sp. Angelin 1854 trilobite