宣揚爪蟲科

宣揚爪蟲科; 化石時期：寒武紀第四期 PreЄ Є O S D C P T J K Pg N ▼
	齊氏揮螯蟲（K. kierkegaardi）復原圖
科學分類
界：	動物界 Animalia
門：	節肢動物門 Arthropoda
綱：	†恐蝦綱 Dinocaridida
科：	†宣揚爪蟲科 Kerygmachelidae; McCall, 2023
屬
	†宣揚爪蟲屬 Kerygmachela; †猶他王蟲屬 Utahnax; †蝠鱝蟲屬 Mobulavermis;

宣揚爪蟲科（學名：Kerygmachelidae）是節肢動物門、恐蝦綱底下的其中一個科。目前該科包括三個屬：來自格陵蘭島早寒武紀的宣揚爪蟲、^[1]來自猶他州中寒武紀的猶他王蟲^[2]和來自內華達州中下寒武紀蝠鱝蟲。^[3]這些動物的特徵是發達的前附肢，與其他恐蝦類（如放射齒目）類似，只不過這些屬中存在的前附肢在同一水平面上，並且它們較細。宣揚爪蟲類很可能是游動捕食者，利用它們較大的游動葉（flap）在海洋中的上層游泳，並利用它們的前附肢捕捉小型獵物。 ^[4]

外觀

宣揚爪蟲的最新全身復原圖

猶他王蟲的部分身體復原圖

蝠鱝蟲的部分身體復原圖

根據蝠鱝蟲在化石中保留的身體長度和宣揚爪蟲身體與其餘部分的比率，推算出蝠鱝蟲全長在30至50厘米，大於宣揚爪蟲的20厘米。^[3]

頭部

僅有宣揚爪蟲的化石保存發現頭部，其餘有僅有發現身體的部位。頭部有一對細長前附肢，與放射齒目的前附肢不同的是，錢復之內的突起是向內，而非向下，且前附肢內側有、細長的刺。^[1]^[5]^[6]^[7]

參考文獻

^ ^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. （原始內容存檔於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 （英語）.
^ 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. （原始內容存檔於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. （原始內容存檔於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 （英語）.

[: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. （原始內容存檔於2023-10-29）.

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