File:Phymolepis cuifengshanensis.PNG

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DescriptionPhymolepis cuifengshanensis.PNG	English: Results The lateroventral fossa of trunk shield and Chang’s apparatus are three-dimensionally restored in P. cuifengshanensis. The canal that is positioned just anterior to the internal cavity of Chang’s apparatus probably corresponds to the rostrocaudal canal of euantiarchs. The endocranial morphology of P. cuifengshanensis corroborates a general pattern for yunnanolepidoids with additional characters distinguishing them from sinolepids and euantiarchs, such as a developed cranio-spinal process, an elongated endolymphatic duct, and a long occipital portion. Discussion In light of new data from Phymolepis and Yunnanolepis, we summarized the morphology on the visceral surface of head shield in antiarchs, and formulated an additional 10 characters for the phylogenetic analysis. These cranial characters exhibit a high degree of morphological disparity between major subgroups of antiarchs, and highlight the endocranial character evolution in antiarchs.
Date	Published 2018, https://doi.org/10.7717/peerj.4808
Source	https://peerj.com/articles/4808/
Author	Artwork by Dinghua Yang. Download full-size imageDOI: 10.7717/peerj.4808/fig-5

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current	21:20, 1 June 2018		3,508 × 2,084 (8.43 MB)	Tillman (talk \| contribs)	{{Information \|description ={{en\|1=Results The lateroventral fossa of trunk shield and Chang’s apparatus are three-dimensionally restored in P. cuifengshanensis. The canal that is positioned just anterior to the internal cavity of Chang’s apparatus probably corresponds to the rostrocaudal canal of euantiarchs. The endocranial morphology of P. cuifengshanensis corroborates a general pattern for yunnanolepidoids with additional characters distinguishing them from sinolepids and euantiarchs, s...

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