Amphinomida

Amphinomida
Hermodice carunculata
Scientific classification
Kingdom:	Animalia
Phylum:	Annelida
Order:	Amphinomida
Families
Amphinomidae Euphrosinidae

Amphinomida is an order of marine polychaetes. The order contains two families:^[1]

• Amphinomidae Lamarck, 1818
• Euphrosinidae Williams, 1852

The fossil record of this taxon (not abundant in annelids overall because this taxon lacks a mineralized skeleton) formerly included Palaeocampa anthrax Meek & Worthen, 1865 from the Late Carboniferous site of Montceau-les-Mines.^[2] However, this genus was redescribed as an aysheaiid lobopodian in 2025.^[3]

1. ^ "WoRMS - World Register of Marine Species - Amphinomida". www.marinespecies.org.
2. ^ Pleijel, Fredrik; Rouse, Greg W.; Vannier, Jean (2004). "Carboniferous fireworms (Amphinomida : Annelida), with a discussion of species taxa in palaeontology". Invertebrate Systematics. 18 (6): 693–700. doi:10.1071/is04003. ISSN 1447-2600.
3. ^ Knecht, Richard J.; McCall, Christian R. A.; Tsai, Cheng-Chia; Rabideau Childers, Richard A.; Yu, Nanfang (23 July 2025). "Palaeocampa anthrax, an armored freshwater lobopodian with chemical defenses from the Carboniferous". Communications Biology. 8 (1): 1–18. doi:10.1038/s42003-025-08483-0. PMC 12287526.

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