Phymolepis

Phymolepis Temporal range: Early Devonian, Lochkovian PreꞒ Ꞓ O S D C P T J K Pg N
Phymolepis cuifengshanensis restoration
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	†Antiarchi
Family:	†Yunnanolepididae
Genus:	†Phymolepis Zhang, 1978
Type species
†Phymolepis cuifengshanensis Zhang, 1978
Other species
†P. guoruii Zhu, 1996

Phymolepis is an extinct genus of yunnanolepidid placoderm from the Early Devonian of China.[1] The type species, P. cuifengshanensis, was named by Zhang Goroui in 1978[1][2] and was re-evaluated in 2018,[3] while a second species, P. guoruii, was named and described in 1996.[4]

The holotype of P. cuifengshanensis is IVPP V4225.3, a nearly complete trunk shield, and it was found in the Xitun Formation, near Cuifengshan.[2] The paratype is IVPP V4425.6, a posterior median dorsal plate, and several other specimens of varying completeness have also been referred to Phymolepis,[3] with some specimens also being recovered from the Xishancun Formation.[4]

References

1. Chang, K-J. (1978). Symposium on the Devonian System of South China: Early devonian antiarchs from Cuifengshan, Yunnan. Institute of Geology and Mineral Resources of the Chinese Academy of Geological Sciences, ed. Geological Press; Beijing: 1978; pp. 292–297.
2. Zhang, G. (1978). The antiarchs from the Early Devonian of Yunnan. Vertebrata PalAsiatica. 1978;16:147–186.
3. Yajing Wang; Min Zhu (2018). "Redescription of Phymolepis cuifengshanensis (Antiarcha: Yunnanolepididae) using high-resolution computed tomography and new insights into anatomical details of the endocranium in antiarchs". PeerJ. 6: e4808. doi:10.7717/peerj.4808. PMC 5978403. PMID 29868260.
4. Zhu, Min (1996-01-01). "The phylogeny of the Antiarcha (Placodermi, Pisces), with the description of Early Devonian antiarchs from Qujing, Yunnan, China". Bull. Mus. Nat. Hist. Natur., Sér.