文献类型：期刊文献

英文题名：New material of Schizopholis (family Botsfordiidae) from the Tsinghsutung Formation (Cambrian Series 2, Stage 4) in Songtao County, Guizhou Province, South China

作者：Wei, Buqing Yang, Xinglian Wang, Dezhi Wu, Weiyi Mao, Yongqin

第一作者：Wei, Buqing

通信作者：Yang, XL[1];Yang, XL[2];Yang, XL[3]

机构：[1]Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China;[2]Guizhou Univ, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang 550025, Peoples R China;[3]Guizhou Prov Key Lab Palaeontol & Palaeoenvironm, Guiyang 550025, Peoples R China;[4]Guizhou Inst Technol, Coll Resources & Environm Engn, Guiyang 550003, Peoples R China;[5]Guizhou Acad Sci, Inst Mt Resources, Guiyang 550001, Peoples R China

第一机构：Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China;corresponding author), Guizhou Univ, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang 550025, Peoples R China;corresponding author), Guizhou Prov Key Lab Palaeontol & Palaeoenvironm, Guiyang 550025, Peoples R China.

年份：2026

卷号：45

期号：1

起止页码：259-273

外文期刊名：JOURNAL OF MICROPALAEONTOLOGY

收录：;Scopus(收录号：2-s2.0-105036838724);WOS:【SCI-EXPANDED(收录号:WOS:001737616300001)】；

基金：This work was supported by research grants from the National Natural Sciences Foundation of China (grant nos. 42262003, 42330209, and 42262002) and the Guizhou Science and Technology Fund (grant nos. Gui. Sci. Bas. ZD[2025]100 and Gui. Sci. Plat. ZSYS [2024]002).

语种：英文

摘要：Organophosphatic brachiopods, widely distributed across several Cambrian tectonic plates, are crucial in understanding the evolution of early brachiopods. Here, we report newly discovered material of Schizopholis yorkensis from the Tsinghsutung Formation (Cambrian Series 2, Stage 4) in Songtao County, Guizhou Province, South China. This study presents the first systematic description of S. yorkensis from South China and extends its palaeobiogeographical distribution significantly. These specimens obtained through acid etching exhibit well-preserved morphological characteristics, including two tubercles on the dorsal metamorphic shell and three tubercles on the ventral metamorphic shell. Additionally, the ventral valve has divergent delthyrium throughout its ontogeny. Palaeogeographical analysis indicates that Schizopholis was predominantly distributed in low-latitude regions and reached its highest diversity level during the Cambrian Age 4, suggesting a phase of rapid spatial expansion during this interval. Schizopholis yorkensis was previously known from only North China and Australia during the Cambrian Age 3, but its subsequent distribution implies an expansion to South China and Antarctica during the Cambrian Age 4. In contrast, S. napuru is largely restricted to the Cambrian Age 4, providing vital auxiliary information for the palaeobiogeographical and biostratigraphical correlations.