宣扬爪虫科

宣扬爪虫科; 化石时期：寒武纪第四期 PreЄ Є O S D C P T J K Pg N ▼
	齐氏挥螯虫（K. kierkegaardi）复原图
科学分类
界：	动物界 Animalia
门：	节肢动物门 Arthropoda
纲：	†恐虾纲 Dinocaridida
科：	†宣扬爪虫科 Kerygmachelidae; McCall, 2023
属
	†宣扬爪虫属 Kerygmachela; †犹他王虫属 Utahnax; †蝠鲼虫属 Mobulavermis;

宣扬爪虫科（学名：Kerygmachelidae）是节肢动物门、恐虾纲底下的其中一个科。目前该科包括三个属：来自格陵兰岛早寒武世的宣扬爪虫、^[1]来自犹他州中寒武世的犹他王虫^[2]和来自内华达州中下寒武世蝠鲼虫。^[3]这些动物的特征是发达的前附肢，与其他恐虾类（如放射齿目）类似，只不过这些属中存在的前附肢在同一水平面上，并且它们较细。宣扬爪虫类很可能是游动捕食者，利用它们较大的游动叶（flap）在海洋中的上层游泳，并利用它们的前附肢捕捉小型猎物。 ^[4]

外观

宣扬爪虫的最新全身复原图

犹他王虫的部分身体复原图

蝠鲼虫的部分身体复原图

根据蝠鲼虫在化石中保留的身体长度和宣扬爪虫身体与其余部分的比率，推算出蝠鲼虫全长在30至50厘米，大于宣扬爪虫的20厘米。^[3]

头部

仅有宣扬爪虫的化石保存发现头部，其余有仅有发现身体的部位。头部有一对细长前附肢，与放射齿目的前附肢不同的是，钱复之内的突起是向内，而非向下，且前附肢内侧有、细长的刺。^[1]^[5]^[6]^[7]

参考文献

^ ^1.0 ^1.1 Budd, Graham. A Cambrian gilled lobopod from Greenland. Nature. 1993-08, 364 (6439) [2023-10-27]. ISSN 0028-0836. doi:10.1038/364709a0. （原始内容存档于2023-10-27）.
^ Lerosey‐Aubril, Rudy; Ortega‐Hernández, Javier. A new lobopodian from the middle Cambrian of Utah: did swimming body flaps convergently evolve in stem‐group arthropods?. Papers in Palaeontology. 2022-05, 8 (3). ISSN 2056-2799. doi:10.1002/spp2.1450.
^ ^3.0 ^3.1 McCall, C. R. A. A large pelagic lobopodian from the Cambrian Pioche Shale of Nevada. Journal of Paleontology. 2023: 1–16. doi:10.1017/jpa.2023.63.
^ Park, Tae-Yoon S.; Kihm, Ji-Hoon; Woo, Jusun; Park, Changkun; Lee, Won Young; Smith, M. Paul; Harper, David A. T.; Young, Fletcher; Nielsen, Arne T.; Vinther, Jakob. Brain and eyes of Kerygmachela reveal protocerebral ancestry of the panarthropod head. Nature Communications. 2018-03-09, 9 (1): 1019. ISSN 2041-1723. PMC 5844904 . PMID 29523785. doi:10.1038/s41467-018-03464-w （英语）.
^ Chipman, Ariel D.; Edgecombe, Gregory D. Developing an integrated understanding of the evolution of arthropod segmentation using fossils and evo-devo. Proceedings of the Royal Society B: Biological Sciences. 2019-10-02, 286 (1912). ISSN 0962-8452. doi:10.1098/rspb.2019.1881.
^ Park, Tae-Yoon S.; Kihm, Ji-Hoon; Woo, Jusun; Park, Changkun; Lee, Won Young; Smith, M. Paul; Harper, David A. T.; Young, Fletcher; Nielsen, Arne T.; Vinther, Jakob. Brain and eyes of Kerygmachela reveal protocerebral ancestry of the panarthropod head. Nature Communications. 2018-03-09, 9 (1). ISSN 2041-1723. doi:10.1038/s41467-018-03464-w.
^ Chen, Jun-yuan; Ramsköld, Lars; Zhou, Gui-qing. Evidence for Monophyly and Arthropod Affinity of Cambrian Giant Predators. Science. 1994-05-27, 264 (5163) [2023-10-29]. ISSN 0036-8075. doi:10.1126/science.264.5163.1304. （原始内容存档于2023-10-29）.

[:02-1] 1.0 ^1.1 Budd, Graham. A Cambrian gilled lobopod from Greenland. Nature. 1993-08, 364 (6439) [2023-10-27]. ISSN 0028-0836. doi:10.1038/364709a0. （原始内容存档于2023-10-27）.

[2] Lerosey‐Aubril, Rudy; Ortega‐Hernández, Javier. A new lobopodian from the middle Cambrian of Utah: did swimming body flaps convergently evolve in stem‐group arthropods?. Papers in Palaeontology. 2022-05, 8 (3). ISSN 2056-2799. doi:10.1002/spp2.1450.

[:1-3] 3.0 ^3.1 McCall, C. R. A. A large pelagic lobopodian from the Cambrian Pioche Shale of Nevada. Journal of Paleontology. 2023: 1–16. doi:10.1017/jpa.2023.63.

[:0-4] Park, Tae-Yoon S.; Kihm, Ji-Hoon; Woo, Jusun; Park, Changkun; Lee, Won Young; Smith, M. Paul; Harper, David A. T.; Young, Fletcher; Nielsen, Arne T.; Vinther, Jakob. Brain and eyes of Kerygmachela reveal protocerebral ancestry of the panarthropod head. Nature Communications. 2018-03-09, 9 (1): 1019. ISSN 2041-1723. PMC 5844904 . PMID 29523785. doi:10.1038/s41467-018-03464-w （英语）.

[:3-5] Chipman, Ariel D.; Edgecombe, Gregory D. Developing an integrated understanding of the evolution of arthropod segmentation using fossils and evo-devo. Proceedings of the Royal Society B: Biological Sciences. 2019-10-02, 286 (1912). ISSN 0962-8452. doi:10.1098/rspb.2019.1881.

[:12-6] Park, Tae-Yoon S.; Kihm, Ji-Hoon; Woo, Jusun; Park, Changkun; Lee, Won Young; Smith, M. Paul; Harper, David A. T.; Young, Fletcher; Nielsen, Arne T.; Vinther, Jakob. Brain and eyes of Kerygmachela reveal protocerebral ancestry of the panarthropod head. Nature Communications. 2018-03-09, 9 (1). ISSN 2041-1723. doi:10.1038/s41467-018-03464-w.

[:7-7] Chen, Jun-yuan; Ramsköld, Lars; Zhou, Gui-qing. Evidence for Monophyly and Arthropod Affinity of Cambrian Giant Predators. Science. 1994-05-27, 264 (5163) [2023-10-29]. ISSN 0036-8075. doi:10.1126/science.264.5163.1304. （原始内容存档于2023-10-29）.

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