مورد إلكتروني
Biostratigraphical and palaeogeographical implications of Early Cambrian hyoliths from the North China Platform
| العنوان: | Biostratigraphical and palaeogeographical implications of Early Cambrian hyoliths from the North China Platform |
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| بيانات النشر: | Naturhistoriska riksmuseet, Enheten för paleobiologi 2019 |
| تفاصيل مُضافة: | Bing, Pan Skovsted, Christian Sun, Haijing Li, Guoxiang |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | A succession of diverse hyolith assemblages comprising 10 genera and 14 species are reported from the lower Cambrian Shangwan and Sanjianfang sections of the Xinji Formation, and Xiaomeiyao section of the Houjiashan Formation, which crop out along the southern margin of the North China Platform. Most of the specimens are represented by both conchs and opercula. The identified orthothecids include Conotheca australiensis, Cupitheca holocyclata, C. costellata, Neogloborilus applanatus, N. spinatus, Tegminites hymenodes, Triplicatella disdoma, T. xinjia sp. nov. and Paratriplicatella shangwanensis gen. et sp. nov. The hyolithids comprise Protomicrocornus triplicensis gen. et sp. nov., Microcornus eximius, M. petilus, Parkula bounites and Parakorilithes mammillatus. Some anomalous taxa possess characteristics of both Hyolithida and Orthothecida, such as C. australiensis, Neogloborilus and P. triplicensis. Protomicrocornus may constitute a sister group of other hyolithids. The teeth of Parkula bounites and clavicles of Parakorilithes mammillatus are documented for the first time. The hyolith assemblages from North China are probably coeval, and can be correlated with the Cambrian upper Stage 3–lower Stage 4. Many taxa are also globally distributed and have significant potential for biostratigraphical correlations. In accordance, the hyoliths from North China reveal closest compositional similarities to faunas from eastern Gondwana, and especially South Australia. However, some taxa are shared with Laurentian assemblages suggesting cosmopolitanism, and possibly planktonic larval dispersal. |
| مصطلحات الفهرس: | hyolith, taxonomy, biostratigraphy, palaeogeography, North China Platform, Cambrian Stage 3–4, Geology, Geologi, Article in journal, info:eu-repo/semantics/article, text |
| DOI: | 10.1080.03115518.2019.1577492 |
| URL: | Alcheringa, 0311-5518, 2019, 43, s. 351-380 |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess |
| ملاحظة: | application/pdf English |
| أرقام أخرى: | UPE oai:DiVA.org:nrm-3371 0000-0001-7366-7680 doi:10.1080/03115518.2019.1577492 1234506450 |
| المصدر المساهم: | UPPSALA UNIV LIBR From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1234506450 |
| قاعدة البيانات: | OAIster |
| DOI: | 10.1080.03115518.2019.1577492 |
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