Peipiaosteidae

Peipiaosteidae Temporal range: Late Jurassic–Early Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Specimen of longidorsalis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Acipenseriformes
Family:	†Peipiaosteidae Liu and Zhou, 1965
Genera
See text

Peipiaosteidae is an extinct family of fish, known from the Late Jurassic and Early Cretaceous of Asia. It is considered to be a member of Acipenseriformes, related to sturgeons (Acipenseridae) and paddlefish (Polyodontidae). Fossils have been found in freshwater deposits in China, Russia, Kazakhstan, and Mongolia. They are generally considered either the earliest diverging group of Acipenseriformes, or the sister group to the clade containing Acipenseridae and Polyodontidae.^[1]

Taxonomy[]

After.^[1]

• Stichopterus Reis, 1910
  • Stichopterus woodwardi Reis, 1910 , Russia, Early Cretaceous
  • Stichopterus popovi Jakovlev, 1977 , Mongolia, Early Cretaceous (Aptian)
  • Indeterminate remains are known from the Early Cretaceous Murtoi Formation, Russia.^[2]
• Peipiaosteus fengningensis Bai, 1983
  • Peipiaosteus fengningensis Bai, 1983 Yixian Formation, China, Early Cretaceous (Aptian),
• Lu, 1995
  • Liaosteus hongi Lu, 1995 Haifanggou Formation, China, Middle-Late Jurassic (Callovian/Oxfordian)
• Jakovlev, 1977
  • Spherosteus scharovi Jakovlev, 1977 Karabastau Formation, Kazakhstan, Middle-Late Jurassic (Callovian/Oxfordian)
• Jin et al., 1995
  • Yanosteus longidorsalis Jin et al., 1995 Yixian Formation, China, Early Cretaceous (Aptian)

References[]