# Zhuganpo Formation

The Zhuganpo Formation is a Triassic geologic unit found in southern China. It has historically been known as the Zhuganpo Member of the Falang Formation. A diverse fossil assemblage known as the Xingyi biota or Xingyi Fauna can be found in the upper part of the Zhuganpo Formation. Fossils of the Xingyi biota include articulated skeletons of marine reptiles, abundant fish, and a plentiful assortment of invertebrates indicating a Ladinian to Carnian age for the sediments of the formation.

## Paleobiota
### Invertebrates

* Ammonites: Clionitites sp., Detoniceras sp., Haoceras xingyiense, Parasturia sp., Protrachyceras sp., Ptychites sp., Sinomeginoceras (S. wangi, S. xingyiense), Trachyceras sp., Xenoprotrachyceras cf. primum, Yangites densicostatus,
* Bivalves: Daonella sp.
* Conodonts: Gladigondolella malayensis, Metapolygnathus / Paragondolella / Quadralella (Q. aff. acuminatus, P. foliata, P. inclinata, Q. intermedius, Q. langdaiensis, P. maantangensis, P. navicula, M. nodosus, M. parafoliata, Q. aff. praelindae, P. polygnathiformis, Q. shijiangjunensis, Q. tadpole, Q. uniformis, Q. wanlanensis, Q. aff. wayaoensis, Q. yongueensis, Q. aff. zonneveldi)
* Crinoids: Traumatocrinus hsui
* Crustaceans ("shrimps"): Schimperella acanthocercus (Lophogastrida)

### Fish

* Acrolepidae indet.
* Archaesemionotus sp.
* aff. Arctacanthus sp. (Chimaeriformes?)
* Asialepidotus shingyiensis (Ionoscopiformes)
* Birgeria liui
* Caturidae indet.
* Eosemionotus sp.
* Favusodus orientalis (Euselachii)
* Fuyuanichthys wangi (Ginglymodi)
* Fuyuanperleidus dengi
* Guizhouamia bellula
* Guizhoubrachysomus minor
* Guizhoucoelacanthus guanlingensis
* Guizhouniscus microlepidus
* Habroichthys sp.
* Keichouodus nimaiguensis (Euselachii)
* Luganoia fortuna (Luganoiidae)
* Malingichthys (M. nimaiguensis, M. wanfendlinensis; Pholidophoridae)
* Marcopoloichthys sp.
* Peltopleurus (P. orientalis, P. tyrannos)
* Peripeltopleurus sp. (Wushaichthyidae)
* Pholidophoridae indet.
* Potanichthys xingyiensis (Thoracopteridae)
* Rosaodus xingyiensis (Elasmobranchii)
* Saurichthys sp.
* Sinoeugnathus kueichowensis
* Wushaichthys exquisitus (Wushaichthyidae)
* Xingyia gracilis

### Reptiles

Reptiles of the Zhuganpo Formation :
| Genus | Species | Notes | Images |
| Anshunsaurus | A. huangnihensis | An askeptosauroid thalattosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Anshunsaurus | A. wushaensis | An askeptosauroid thalattosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Brevicaudosaurus | B. jiyangshanensis | A small nothosaur with an unusually short torso and tail | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Diandongosuchus | D. fuyuanensis | A semiaquatic archosauriform, interpreted as a basal phytosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Dingxiaosaurus | D. luyinensis | A pistosauroid of uncertain validity. Previously believed to have been from the Yangliujing Formation. | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Fuyuansaurus | F. acutirostris | A "protorosaur" archosauromorph, possibly a tanystropheid | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Glyphoderma | G. kangi | A placochelyid placodont | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Guizhouichthyosaurus | G. sp. | A large predatory merriamosaurian ichthyosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Keichousaurus | K. hui | A keichousaurid pachypleurosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Lariosaurus | L. xingyiensis | A small nothosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Litorosuchus | L. somnii | A semiaquatic archosauriform related to Vancleavea campi | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Macrocnemus | M. fuyuanensis | A small basal tanystropheid | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Nothosaurus | N. youngi | A large nothosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Qianichthyosaurus | Q. xingyiensis | A small toretocnemid ichthyosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Qianxisaurus | Q. chajiangensis | A basal eosauropterygian, possibly related to pachypleurosaurs or nothosaurs | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Tanystropheus | T. cf. hydroides | A large tanystropheid, previously classified as T. cf. longobardicus | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Tanystropheus | T. sp. | A small tanystropheid, previously classified as T. cf. longobardicus | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Wangosaurus | W. brevirostris | A pistosauroid | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Xinpusaurus | X. xingyiensis | A thalattosauroid thalattosaur | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |
| Yunguisaurus | Y. liae | A pistosauroid | Diandongosuchus fuyuanensis Keichousaurus hui Guizhouichthyosaurus |