New Cambrian lobopods and chaetognaths of the Siberian Platform

被引:0
作者
Yu. E. Demidenko
机构
[1] Russian Academy of Sciences,Paleontological Institute
来源
Paleontological Journal | 2006年 / 40卷
关键词
lobopods; protoconodonts; Chaetognatha; Early Cambrian; Toyonian Stage; Yudoma River; Siberian Platform; Russia;
D O I
暂无
中图分类号
学科分类号
摘要
The association of isolated remains of lobopods with a netlike structure, including plates of Microdictyon rozanovi sp. nov. and sclerites with spinelike process of Onychomicrodictyon spiniferum gen. et sp. nov., as well as saberlike sclerites of Protohertzina yudomica sp. nov. interpreted as grasping spines of chaetognaths, is described from the middle part of the Inikan Formation of the Toyonian Stage of the Lower Cambrian (Lermontovia dzevanovskii Zone). The diagnoses and species composition of the genera Microdictyon and Protohertzina are refined.
引用
收藏
页码:234 / 243
页数:9
相关论文
共 21 条
  • [1] Bengtson S.(1976)The Structure of Some Middle Cambrian Conodonts, and the Early Evolution of Conodont Structure and Function Lethaia 9 185-206
  • [2] Bengtson S.(1991)Oddballs from the Cambrian Start to Get Even Nature 351 184-185
  • [3] Chen J.(1989)Early Cambrian Netted Scale-Bearing Worm-Like Sea Animal Acta Palaeontol. Sin. 28 1-16
  • [4] Hou X.(2003)Early Cambrian Lobopodian Sclerites and Associated Fossils from Kazakhstan Palaeontology 46 93-112
  • [5] Lu H.(1981)Lower and Middle Ordovician Conodonts from the Ibex Area, Western Millard County, Utah Brigham Young Univ. Geol. Stud. 28 1-160
  • [6] Dzik J.(1987)The Oldest Known Well-Preserved Phaeodaria (Radiolaria) from Southern Shaanxi Geoscience 1 301-310
  • [7] Ethington R. L.(1987)The Lower Cambrian Microfauna of Comley and Rushton, Shropshire, England Palaeontogr. Abt. A 198 41-100
  • [8] Clark D. L.(1995)Cambrian Lobopodians—Ancestors of Extant Onychophorans? Zool. J. Linn. Soc. 114 3-19
  • [9] Hao Y.(1973) n. g., ein phosphatisches Microfossil aus dem Altpaläozoikum Paläontol. Z. 473 217-228
  • [10] Shu D.(1975)Phosphatic Microfossils from the Ordovician of the Unites States Fieldiana Geol. 35 1-9