Hostname: page-component-5d84bcc8dc-lvw85 Total loading time: 0 Render date: 2026-08-18T18:02:51.674Z Has data issue: false hasContentIssue false
  • English
  • Français

A new tetraradial olivooid (Medusozoa) from the lower Cambrian (Stage 2) Yanjiahe Formation, South China

Published online by Cambridge University Press:  27 December 2019

Junfeng Guo ,
Jian Han Open the ORCID record for Jian Han [Opens in a new window] ,
Heyo Van Iten Open the ORCID record for Heyo Van Iten [Opens in a new window] ,
Zuchen Song ,
Yaqin Qiang ,
Wenzhe Wang ,
Zhifei Zhang ,
Guoxiang Li ,
Yifei Sun  and
Jie Sun
Junfeng Guo
Affiliation:
School of Earth Science and Resources, Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Chang'an University, Xi'an 710054, P.R. China , <757542074@qq.com>, <2695489023@qq.com>, <512718116@qq.com>
Jian Han*
Affiliation:
State Key Laboratory of Continental Dynamics, Shaanxi Key Laboratory of Early Life and Environments, Department of Geology, Northwest University, 229 Taibai Road, Xi'an 710069, P.R. China , , <531626765@qq.com>, <55718471@qq.com>
Heyo Van Iten*
Affiliation:
Department of Geology, Hanover College, Hanover, Indiana 47243, USA Department of Invertebrate Paleontology, Cincinnati Museum Center, 1301 Western Avenue, Cincinnati, Ohio 45203, USA
Zuchen Song
Affiliation:
School of Earth Science and Resources, Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Chang'an University, Xi'an 710054, P.R. China , <757542074@qq.com>, <2695489023@qq.com>, <512718116@qq.com>
Yaqin Qiang
Affiliation:
School of Earth Science and Resources, Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Chang'an University, Xi'an 710054, P.R. China , <757542074@qq.com>, <2695489023@qq.com>, <512718116@qq.com>
Wenzhe Wang
Affiliation:
School of Earth Science and Resources, Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Chang'an University, Xi'an 710054, P.R. China , <757542074@qq.com>, <2695489023@qq.com>, <512718116@qq.com>
Zhifei Zhang
Affiliation:
State Key Laboratory of Continental Dynamics, Shaanxi Key Laboratory of Early Life and Environments, Department of Geology, Northwest University, 229 Taibai Road, Xi'an 710069, P.R. China , , <531626765@qq.com>, <55718471@qq.com>
Guoxiang Li
Affiliation:
State Key Laboratory of Palaeobiology and Stratigraphy and Center for Excellence in Life and Paleoenvironment, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, P.R. China
Yifei Sun
Affiliation:
State Key Laboratory of Continental Dynamics, Shaanxi Key Laboratory of Early Life and Environments, Department of Geology, Northwest University, 229 Taibai Road, Xi'an 710069, P.R. China , , <531626765@qq.com>, <55718471@qq.com>
Jie Sun
Affiliation:
State Key Laboratory of Continental Dynamics, Shaanxi Key Laboratory of Early Life and Environments, Department of Geology, Northwest University, 229 Taibai Road, Xi'an 710069, P.R. China , , <531626765@qq.com>, <55718471@qq.com>
*
*Corresponding author.
*Corresponding author.
Get access Rights & Permissions [Opens in a new window]

Abstract

Octapyrgites elongatus n. gen. n. sp., a relatively rare, tetraradial olivooid (Cnidaria, Medusozoa), is described from Bed 5 of the Yanjiahe Formation (Cambrian Stage 2) near Yichang, China. Although similar to Olivooides and Quadrapyrgites from the Fortunian Stage in consisting of a partially corrugated (longitudinal) periderm with a quadrate (transverse) apical portion and V-shaped apertural lobes, O. elongatus is substantially larger than other olivooids. The elongate apical region of O. elongatus is similar to four-sided Anaconularia anomala (Barrande, 1867), though with a flat tip that may have been an adaption for a sessile mode of life. As in other olivooids, embryonic development in O. elongatus may have been direct. Last, the paucity of olivooids and the absence of pentaradial cnidarians and carinachitids in Cambrian Stage 2 indicate a marked decline in the disparity of cnidarians near the Fortunian–Cambrian Age 2 boundary, when by contrast bilaterians underwent rapid diversification.

UUID: http://zoobank.org/60acc2f9-44f8-4a97-9449-960ad76f8fff

Information

Type
Articles
Information
Journal of Paleontology , Volume 94 , Issue 3 , May 2020 , pp. 457 - 466
Copyright
Copyright © 2019, The Paleontological Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Barrande, J., 1867, Système Silurien du centre de la Bohême. Iière Partie. Tome 3. Classe des mollusques, ordre des ptéropodes: Prague, Charles Bellmann, 179 p.Google Scholar
Bouček, B., 1928, Révision des Conulaires paléozoïques de la Bohême: Palaeontographica Bohemiae, v. 11, p. 1–108.Google Scholar
Cartwright, P., Halgedahl, S.L., Hendricks, J.R., Jarrard, R.D., Marques, A.C., Collins, A.G., and Lieberman, B.S., 2007, Exceptionally preserved jellyfishes from the middle Cambrian: PLoS One, v. 2, e1121.Google ScholarPubMed
Chen, F., and Dong, X., 2008, The internal structure of early Cambrian fossil embryo Olivooides revealed in the light of Synchrotron X-ray tomographic microscopy: Chinese Science Bulletin, v. 53, p. 3860–3865.Google Scholar
Chen, M., 1982, The new knowledge of the fossil assemblages from Maidiping Section, Emei County, Sichuan with reference to the Sinian–Cambrian Boundary: Scientia Geologica Sinica, v. 3, p. 253–263. [in Chinese with English abstract]Google Scholar
Chen, P., 1984, Discovery of lower Cambrian small shelly fossils from Jijiapo, Yichang, west Hubei and its significance: Professional Papers of Stratigraphy and Palaeontology, v. 13, p. 49–64. [in Chinese with English abstract]Google Scholar
Conway Morris, S., and Chen, M., 1992, Carinachitids, hexaconulariids, and Punctatus: Problematic metazoans from the early Cambrian of South China: Journal of Paleontology, v. 66, p. 384–406.Google Scholar
Dong, X., Cunningham, J.A., Bengtson, S., Thomas, C.W., Liu, J., Stampanoni, M., and Donoghue, P.C.J., 2013, Embryos, polyps and medusae of the early Cambrian scyphozoan Olivooides: Proceedings of the Royal Society B, v. 280, 20130071.Google ScholarPubMed
Dong, X., Vargas, K., Cunningham, J.A., Zhang, H., Liu, T., Chen, F., Liu, J., Bengtson, S., and Donoghue, P.C.J., 2016, Developmental biology of the early Cambrian cnidarian Olivooides: Palaeontology, v. 59, p. 387–407.Google Scholar
Duan, B., Dong, X., Porras, L., Vargas, K., Cunningham, J.A., and Donoghue, P.C.J., 2017, The early Cambrian fossil embryo Pseudooides is a direct-developing cnidarian, not an early ecdysozoan: Proceedings of the Royal Society B, v. 284, 2188.Google ScholarPubMed
Dzik, J., Balinski, A., and Sun, Y., 2017, The origin of tetraradial symmetry in cnidarians: Lethaia, v. 50, p. 306–321.Google Scholar
Guo, J., Li, Y., and Li, G., 2014, Small shelly fossils from the early Cambrian Yanjiahe Formation, Yichang, Hubei, China: Gondwana Research, v. 25, p. 999–1007.Google Scholar
Guo, J., Han, J., Van Iten, H., Wang, X., Qiang, Y., Song, Z., Wang, W., Zhang, Z., and Li, G., 2019, A fourteen-faced hexangulaconulariid from the early Cambrian (Stage 2) Yanjiahe Formation, South China: Journal of Paleontology, https://doi.org/10.1017/jpa.2019.56.Google Scholar
Han, J., Kubota, S., Uchida, H., Stanley, G.D. Jr, Yao, X., Shu, D., Li, Y., and Yasui, K., 2010, Tiny sea anemone from the lower Cambrian of China: PLoS One, v. 5, e13276.Google ScholarPubMed
Han, J., Kubota, S., Li, G., et al. , 2013, Early Cambrian pentamerous cubozoan embryos from South China: PLoS One, v. 8, e70741.Google ScholarPubMed
Han, J., Kubota, S., Li, G., et al. , 2016a, Divergent evolution of medusozoan symmetric patterns: Evidence from the microanatomy of Cambrian tetramerous cubozoans from South China: Gondwana Research, v. 31, p. 150–163.Google Scholar
Han, J., Li, G., Kubota, S., et al. , 2016b, Internal microanatomy and zoological affinity of the early Cambrian Olivooides: Acta Geologica Sinica (English Edition), v. 90, p. 38–65.Google Scholar
Han, J., Hu, S., Cartwright, P., Zhao, F., Ou, Q., Kubota, S., Wang, X., and Yang, X., 2016c, The earliest pelagic jellyfish with rhopalia from Cambrian Chengjiang Lagerstätte: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 449, p. 166–173.Google Scholar
Han, J., Li, G., Wang, X., Yang, X., Guo, J., Sasaki, O., and Komiya, T., 2018, Olivooides-like tube aperture in early Cambrian carinachitids (Medusozoa, Cnidaria): Journal of Paleontology, v. 92, p. 3–13.Google Scholar
He, T., 1987, Early Cambrian conulariids from Yangtze platform and their early evolution: Journal of Chengdu University of Technology, v. 14, p. 7–18. [in Chinese with English abstract]Google Scholar
He, Y., and Yang, X., 1986, Early Cambrian coelenterates from Nanjiang, Sichuan: Bulletin of the Chengdu Institute of Geological and Mineral Resources, Chinese Academy of Geological Sciences, v, 7, p. 31–43. [in Chinese with English abstract]Google Scholar
Li, G., Steiner, M., Zhu, X., Yang, A., Wang, H., and Erdtmann, B.D., 2007, Early Cambrian metazoan fossil record of South China: Generic diversity and radiation patterns: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 254, p. 229–249.Google Scholar
Li, P., Hua, H., Zhang, L., Zhang, D., Jin, X., and Liu, Z., 2007, Lower Cambrian phosphatized Punctatus from southern Shaanxi and their ontogeny sequence: Chinese Science Bulletin, v. 52, p. 2820–2828.Google Scholar
Liu, Y., Li, Y., Shao, T., Wang, Y., Yu, B., Han, H., and Yang, J., 2005, Two new species of protoconulariids from the early Cambrian in South Shaanxi, China: Acta Micropalaeontologica Sinica, v. 22, p. 311–321. [in Chinese with English abstract]Google Scholar
Liu, Y., Li, Y., Shao, T., Zheng, X., Zheng, J., Wang, G., Wang, H., and Wang, K., 2011, A new genus and species of protoconulariids from the early Cambrian in the south Shaanxi, China: Acta Micropalaeontologica Sinica, v. 28, p. 245–249. [in Chinese with English abstract]Google Scholar
Liu, Y., Li, Y., Shao, T., Zhang, H., Wang, Q., and Qiao, J., 2014, Quadrapyrgites from the lower Cambrian of South China: Growth pattern, post-embryonic development, and affinity: Chinese Science Bulletin, v. 59, p. 4086–4095.Google Scholar
Liu, Y., Shao, T., Zhang, H., Wang, Q., Zhang, Y., Chen, C., Liang, Y., and Xue, J., 2017, A new scyphozoan from the Cambrian Fortunian Stage of South China: Palaeontology, v. 60, p. 511–518.Google Scholar
Maloof, A.C., Porter, S.M., Moore, J.L., Dudás, F.Ö., Bowring, S.A., Higgins, J.A., Fike, D.A., and Eddy, M.P., 2010, The earliest Cambrian record of animals and ocean geochemical change: Geological Society of America Bulletin, v. 122, p. 1731–1774.Google Scholar
Missarzhevsky, V.V., 1974, New data on the oldest fossils of the early Cambrian of the Siberian Platform, in Zhuravleva, I.T., and Rozanov, A.Y., eds., Biostratigraphy and Palaeontology of the Lower Cambrian of Europe and Northern Asia: Moscow, Nauka, p. 179–189. [in Russian]Google Scholar
Petersen, K.W., 1979, Development of coloniality in Hydrozoa, in Larwood, G., and Rosen, B.R., eds., Biology and Systematics of Colonial Organisms, Special Volume 11: London, Academic Press, p. 105–139.Google Scholar
Qian, Y., 1977, Hyolitha and some problematica from the lower Cambrian Meishucun Stage in central and S. W. China: Acta Palaeontologica Sinica, v. 16, p. 255–275. [in Chinese with English abstract]Google Scholar
Rozanov, A.Y., Missarzhevsky, V.V., Volkova, N.A., Voronova, L.G., Krylov, I.N., Keller, B.M., Korolyuk, I.K., Lendzion, K., Michniak, R., Pyhova, N.G., and Sidorov, A.D., 1969, The Tommotian Stage and the Cambrian Lower Boundary Problem: Trudy of Geological Institute, Academy Nauk SSSR, 206, 380 p. [in Russian]Google Scholar
Shao, T., Liu, Y., Duan, B., Zhang, H., Zhang, H., Wang, Q., Zhang, Y., and Qin, J., 2018, The Fortunian (lowermost Cambrian) Qinscyphus necopinus (Cnidaria, Scyphozoa, Coronatae) underwent direct development: Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, v. 289, p. 149–159.Google Scholar
Shu, D., 2008, Cambrian explosion: Birth of tree of animals: Gondwana Research, v. 14, p. 219–240.Google Scholar
Shu, D., Isozaki, Y., Zhang, X., Han, J., and Maruyama, S., 2014, Birth and early evolution of metazoans: Gondwana Research, v. 25, p. 884–895.Google Scholar
Steiner, M., Li, G., and Qian, Y., 2004, Lower Cambrian small shelly fossils of northern Sichuan and southern Shaanxi (China), and their biostratigraphic importance: Geobios, v. 37, p. 259–275.Google Scholar
Steiner, M., Qian, Y., Li, G., Hagadorn, J.W., and Zhu, M., 2014, The developmental cycles of early Cambrian Olivooidae fam. nov. (?Cycloneuralia) from the Yangtze Platform (China): Palaeogeography, Palaeoclimatology, Palaeoecology, v. 398, p. 97–124.Google Scholar
Van Iten, H., 1991, Anatomy, patterns of occurrence, and nature of the conulariid schott: Palaeontology, v. 34, p. 939–954.Google Scholar
Van Iten, H., Muir, L.A., Botting, J.P., Zhang, Y., and Lin, J., 2013, Conulariids and Sphenothallus (Cnidaria, Medusozoa) from the Tonggao Formation (Lower Ordovician, China): Bulletin of Geosciences, v. 88, p. 713–722.Google Scholar
Van Iten, H., Marques, A.C., Leme, J.M., and Simões, M.G., 2014, Origin and early evolution of phylum Cnidaria Verrill: Major developments in the analysis of the taxon's Proterozoic–Cambrian history: Palaeontology, v. 3, p. 31–40.Google Scholar
Van Iten, H., Leme, J.M., Pacheco, M.L.A.F., Simões, M.G., Fairchild, T.R., Rodrigues, F., Galante, G., Boggiani, P.C., and Marques, A.C., 2016, Origin and early diversification of phylum Cnidaria: Key macrofossils from the Ediacaran System of North and South America, in Goffredo, S., and Dubinsky, Z., eds., The Cnidaria, Past, Present and Future: Switzerland, Springer International Publishing, p. 31–40.Google Scholar
Verrill, A.E., 1865, Classification of polyps (extract condensed from Synopsis of the Polyps and Corals of the North Pacific Exploring Expedition under Commodore C. Ringgold and Caption John Rogers, U.S.N.): Communications of the Essex Institute, v. 4, p. 145–152.Google Scholar
Wang, X., Han, J., Vannier, J., Ou, Q., Yang, X., Uesugi, K., Sasaki, O., Komiya, T., and Sevastopulo, G., 2017, Anatomy and affinities of a new 535-million-year-old medusozoan from the Kuanchuanpu Formation, South China: Palaeontology, v. 60, p. 853–867.Google Scholar
Wood, R., Liu, A.G., Bowyer, F., Wilby, P.R., Dunn, F.S., Kenchington, C.G., Cuthill, J.F.H., Mitchell, E.G., and Penny, A., 2019, Integrated records of environmental change and evolution challenge the Cambrian Explosion: Nature Ecology & Evolution, v. 3, p. 528–538.Google ScholarPubMed
Xing, Y., Ding, Q., Luo, H., He, T., Wang, Y., et al. , 1983, The Sinian–Cambrian boundary of China: Bulletin of the Institute of Geology, Chinese Academy of Geological Sciences, v. 10, p. 179–180. [in Chinese with English abstract]Google Scholar
Yue, Z., and Bengtson, S. 1999, Embryonic and post-embryonic development of the early Cambrian cnidarian Olivooides: Lethaia, v. 32, p. 181–195.Google Scholar
Zhuravlev, A.Y., and Wood, R.A., 2018, The two phases of the Cambrian Explosion: Scientific Reports, v. 8, 16656.Google ScholarPubMed
Supplementary material: File

Guo et al. supplementary material

Guo et al. supplementary material

Download Guo et al. supplementary material(File)
File 13.3 MB