Nectocarididae

Nectocarididae Temporal range: 520–461  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Nectocaris pteryx after the reconstruction of Smith & Caron (2010)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Clade:	Bilateria
Family:	† Nectocarididae Conway Morris, 1976
Genera [1]
Nectocaris Conway Morris, 1976 Nectocotis Smith, 2019

Nectocarididae is a controversial family of animals that superficially resemble squids. Only two genera have been described, being Nectocaris (=Vetustovermis, Petalilium?) from the Cambrian period, and Nectocotis , from the Ordovician period. ^[2] Some researchers claim they are cephalopods, however, this is heavily disputed and most reject this claim. ^{[3] [4]}

List of Genera

• Nectocaris
• Nectocotis
• Vetustovermis ? synonym of Nectocaris
• Petalilium ? synonym of Nectocaris

References

1. "Nectocarididae". Paleobiology Database . Retrieved 7 December 2023.
2. Smith, Martin R. (2019). "An Ordovician nectocaridid hints at an endocochleate origin of Cephalopoda" (PDF). Journal of Paleontology. 94: 64–69. doi:10.1017/jpa.2019.57. S2CID   201208912.
3. Pohle, Alexander; Kröger, Björn; Warnock, Rachel C. M.; King, Andy H.; Evans, David H.; Aubrechtová, Martina; Cichowolski, Marcela; Fang, Xiang; Klug, Christian (December 2022). "Early cephalopod evolution clarified through Bayesian phylogenetic inference". BMC Biology. 20 (1): 88. doi: 10.1186/s12915-022-01284-5 . ISSN   1741-7007. PMC   9008929 . PMID   35421982.
4. Kröger, Björn; Vinther, Jakob; Fuchs, Dirk (August 2011). "Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules". BioEssays. 33 (8): 602–613. doi:10.1002/bies.201100001. PMID   21681989. S2CID   2767810.