Chancelloriid sclerites from the lowermost Cambrian of North China and discussion of sclerite taxonomy

Hao Yun, Xingliang Zhang*, Luoyang Li, Bing Pan, Guoxiang Li, Glenn A. Brock

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Chancelloriid sclerites from the lowermost Cambrian Xinji Formation (Series 2, Stage 3), southern margin of the North China platform, are systematically described. Thousands of isolated sclerites from three sections are assigned to three genera and four species, including Chancelloria cf. eros, Allonnia tripodophora, Archiasterella pentactina, and Ar. tetraspina. To accurately document the taxonomic significance of the sclerite structure, modified formulas (m+nC, m+nA, and m+0) are put forward to represent the full series and variation of sclerite forms. Based on the sclerite construction, statistical analysis on the proportions of different sclerite forms in the rock samples and the composition of sclerites in previously described chancelloriid scleritomes, a new scheme for identification and classification of isolated sclerites reconciled within the framework of the complete scleritome, is proposed.

    Original languageEnglish
    Pages (from-to)65-75
    Number of pages11
    JournalGeobios
    Volume53
    DOIs
    Publication statusPublished - Apr 2019

    Keywords

    • Chancelloriids
    • taxonomy
    • Xinji Formation
    • Cambrian Series 2
    • North China
    • Taxonomy

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