User:我是一隻北極熊/全齒蟲屬
全齿虫属 | |
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科学分类 | |
界: | 动物界 Animalia |
门: | 节肢动物门 Arthropoda |
纲: | †恐蝦綱 Dinocaridida |
属: | †全齿虫属 Omnidens Hou, Bergström, and Yang, 2006 |
物種 | |
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全齒蟲屬(學名:Omnidens)是一個已滅絕的節肢動物,為恐蝦綱底下的一個屬。[1]其中全齒蟲屬有兩個物種,分別為:巨大全齒蟲(學名:Omnidens amplus)[1]和窮奇全齒蟲(學名:Omnidens qiongqii)。[2]人们曾误认为其口器化石属于放射齿目动物,首次发现时,科学家认为全齿虫是一种鳃曳动物[1],但现在又划成节肢动物。其口器很像长有鳃的厌恶虫的口器,意味着这两种动物很可能是近亲。[2]据推测,全齿虫体长可达1.5米,是目前已知最大的自由生活的寒武纪生物之[1]一。[3][4][5][6][7][8]
發現
全齿虫的化石分布在中國雲南省昆明市海口鎮(Haikou area)的麻坊階層(Mafang section)和耳材村階層(Ercaicun section)、晉寧區的梅树村组(Meishucun)、澄江市的帽天山頁岩(Maotianshan Shales)筇竹寺阶中的玉案山組(Yu'anshan Formation)。全齿蟲的正模標本是編號為YKLP 10157的標本,來自帽天山頁岩,目前保存在雲南省古生物研究重點實驗室。[1]
命名
全齿虫屬的名字Omnidens是由拉丁语的omnis(全部)和dens(牙齒)所組成,意思為全部的牙齒。[1]巨大全齿虫的种加词amplus,是巨大的意思[1];窮奇全齒蟲。
型態
发现史
1994年,人们首次发现了全齿虫的样本,但当时人们将其划入放射齿目,并以此作为放射齿目体长可达2米的证据。[9]后来,这批化石又被归入皮托虾和似皮托虫,最后在2006年被确认是一个新的属,并将其模式种命名为巨大全齿虫(Omnidens amplus)。[1]目前,人们认为它是一种大型节肢动物,至少1米长,是厌恶虫的近亲。[2][10]
节肢动物门 |
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参考资料
- ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Xianguang, Hou; Bergström, Jan; Jie, Yang. Distinguishing anomalocaridids from arthropods and priapulids. Geological Journal. 2006-08-07, 41 (3-4). ISSN 0072-1050. doi:10.1002/gj.1050.
- ^ 2.0 2.1 2.2 Vinther, Jakob; Porras, Luis; Young, Fletcher J.; Budd, Graham E.; Edgecombe, Gregory D. The mouth apparatus of the Cambrian gilled lobopodian Pambdelurion whittingtoni. Palaeontology. 2016-09-26, 59 (6). ISSN 0031-0239. doi:10.1111/pala.12256.
- ^ Vinther, Jakob; Porras, Luis; Young, Fletcher J.; Budd, Graham E.; Edgecombe, Gregory D. The mouth apparatus of the Cambrian gilled lobopodian Pambdelurion whittingtoni. Palaeontology. 2016-09-26, 59 (6). ISSN 0031-0239. doi:10.1111/pala.12256.
- ^ Zeng, Han; Zhao, Fangchen; Yin, Zongjun; Zhu, Maoyan. A new radiodontan oral cone with a unique combination of anatomical features from the early Cambrian Guanshan Lagerstätte, eastern Yunnan, South China. Journal of Paleontology. 2017-09-06, 92 (1). ISSN 0022-3360. doi:10.1017/jpa.2017.77.
- ^ Peel, John S. A corset-like fossil from the Cambrian Sirius Passet Lagerstätte of North Greenland and its implications for cycloneuralian evolution. Journal of Paleontology. 2010-03, 84 (2). ISSN 0022-3360. doi:10.1666/09-102r.1.
- ^ Zeng, Han; Zhao, Fangchen; Yin, Zongjun; Zhu, Maoyan. Morphology of diverse radiodontan head sclerites from the early Cambrian Chengjiang Lagerstätte, south-west China. Journal of Systematic Palaeontology. 2017-01-04, 16 (1). ISSN 1477-2019. doi:10.1080/14772019.2016.1263685.
- ^ Li, Wei; Yang, Jie; Yang, Xiaoyu; Dhungana, Alavya; Wang, Yu; Zhang, Xiguang; Smith, Martin R. Omnidens appendages and the origin of radiodont mouthparts. Papers in Palaeontology. 2024-10-30, 10 (6). ISSN 2056-2799. doi:10.1002/spp2.1600.
- ^ Ou, Qiang; Shu, Degan; Zhang, Zhifei; Han, Jian; Van Iten, Heyo; Cheng, Meirong; Sun, Jie; Yao, Xiaoyong; Wang, Rong; Mayer, Georg. Dawn of complex animal food webs: A new predatory anthozoan (Cnidaria) from Cambrian. The Innovation. 2022-01, 3 (1). ISSN 2666-6758. doi:10.1016/j.xinn.2021.100195.
- ^ Chen, Jun-yuan; Ramsköld, Lars; Zhou, Gui-qing. Evidence for Monophyly and Arthropod Affinity of Cambrian Giant Predators. Science. 1994-05-27, 264 (5163). ISSN 0036-8075. doi:10.1126/science.264.5163.1304.
- ^ Peel, John S. A corset-like fossil from the Cambrian Sirius Passet Lagerstätte of North Greenland and its implications for cycloneuralian evolution. Journal of Paleontology. 2010-03, 84 (2). ISSN 0022-3360. doi:10.1666/09-102r.1.