Sphinctozoan from the Nakhodka Reef (South Primorye, Russia) and the Lengwu Reef (Zhejiang Province, Southeast China)

• Main Author: Malysheva E.N.
• Format: Article
• Language: Russian
• Published: Institute of Volcanology and Seismology FEB RAS 2019-07-01
• Series: Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
• Subjects: Sphinctozoan; South Primorye; Late Permian; reefs; Southeast China
• Online Access: http://www.kscnet.ru/journal/kraesc/article/view/251

The author has studied sphinctozoans from the Nakhodka Reef (Southern Primorye) and the Lengwu Reef (Southeast China) and revealed within the Nakhodka Reef new taxa for this location Intrasporeocoelia hubiensis Fan and Zhang, 1985 и Celypia cf. bacula Belyaeva, 2000. Besides, the author has revised the composition of these organisms and included them into the taxonomic list. The location of the sphinctozoa in the Nakhodka Reef showed that they are the main frame-building organisms together with algae and crinoids. The Lengwu Reef was formed in three stages, each ended with the development of the reef. A comparative analysis between fossil sponges from the Nakhodka Reef and the Lengwu Reef has revealed a taxonomic affinity of the faunas, which allowed concluding that there is similarity between these sediments in age and depositional environment. The analysis of the layer-by-layer changes in a systematic and quantitative composition of sphinctozoan was conducted, stratigraphic referencing of taxa in the section was implemented.