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Showing results for tags 'haikou'.
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Possible synonyms Protopriapulites haikouensis Hou, Bergström, Wang, Feng & Chen, 1999. The correct name is Sicyophorus rara and not as often found Sicyophorus rarus. Description from Hou et al. 2017, p 124: "This is a relatively common priapulid‐like worm, known from over a thousand specimens. In many cases the material consists of compressed, complete individuals, and the posterior half of the body is often better preserved with an apparently rigid outline. Detailed structures can be detected by subtle differences in color and relief. The size of the animal is generally about 1cm long. The overall body shape is reminiscent of a dumb‐bell, with a sub-equally expanded introvert and posterior trunk connected by a constricted neck region. The introvert bears spine‐like scalids arranged in about 20 longitudinal rows and 14 circlets. The narrower anterior part of the proboscis is protrusive and appears to bear a regular array of tiny spines. The trunk cuticle is apparently more rigid than the introvert, and is covered in a series of 13–15 longitudinal plates divided by dark ridges. The distinct gut is heavily coiled and filled with sediment, almost entirely occupying the ovoid trunk." Line drawing from Hou et al. 2017, p. 124: References: Luo, Huilin, Hu, Shixue, Chen, L., Zhang, S., Tao, Y. (1999). Early Cambrian Chengjiang fauna from Kunming region, China. Yunnan Science and Technology Press, Kunming, pp. 1–189 (in Chinese with English summary). D. Y. Huang, J. Vannier, and J. Y. Chen (2004). Anatomy and lifestyles of Early Cambrian priapulid worms exemplified by Corynetis and Anningvermis from the Maotianshan Shale (SW China). Lethaia 37:21-33. S. Q. Dornbos and J.-Y. Chen (2008) Community palaeoecology of the early Cambrian Maotianshan Shale biota: Ecological dominance of priapulid worms. Palaeogeography, Palaeoclimatology, Palaeoecology 258:200-212. Andreas Maas, Diying Huang, Junyuan Chen, Dieter Waloszek, Andreas Braun (2007). Maotianshan-Shale nemathelminths — Morphology, biology, and the phylogeny of Nemathelminthes. , 254(1-2), 0–306. Hou et al. (2017) The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life, 2nd Edition. Wiley-Blackwell. DOI:10.1002/9781118896372.
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From http://sciencythoughts.blogspot.com/2015/05/yuganotheca-elegans-early-cambrian.html: "An Early Cambrian Lophophorate Animal with affinities to Brachiopods and Phoronids. Lophophorates are animals which feed using a filter called a lophophore, which comprises a number of setae covered tentacles, to extract food from water. The group includes the shelled Brachiopods, the worm-like Phoronids, the minute Entoprocts, and colonial Bryozoans, and has been shown by molecular and embryonic evidence to be related to the Molluscs and Annelids. Within the Lophophorates the Phoronids and Brachiopods are thought to be closely related, with some studies suggesting that the Phoronids should be regarded as a shell-less subgroup of the Brachiopods." Zhang, Z.-F. et al. An early Cambrian agglutinated tubular lophophorate with brachiopod characters. Sci. Rep. 4, 4682; DOI:10.1038/srep04682 (2014).
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From the album: Invertebrates
Yuknessia sp. Early Cambrian Haikou Yunnan China Yuknessia was originally interpreted as a green alga and has since been reinterpreted it as a colonial pterobranch.-
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- chengjiang
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References: Zhang, Z.-F., et al. (2003). Pediculate Brachiopod Diandongia pista from the Lower Cambrian of South China. Acta Geologica Sinica, Vol.77, Number 3. Zhifei Zhang, Jian Han, Yang Wang, Christian C. Emig, Degan Shu (2009) Epibionts on the lingulate brachiopod Diandongia from the Early Cambrian Chengjiang Lagerstätte, South China. Proc. R. Soc. B (2010) 277, 175–181. Zhifei Zhang, Jian Han, Z Xingliang Zhang, Jianni Liu, Degan Shu (2003) Pediculate Brachiopod Diandongia pista from the Lower Cambrian of South China. Acta Geologica Sinica. Vol. 77, No 3., pp 288-293.
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