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
	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]

References

^ "Nectocarididae". Fossilworks. Gateway to the Paleobiology Database. Retrieved 7 December 2023.
^ 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.
^ 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.
^ 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.

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[1] "Nectocarididae". Fossilworks. Gateway to the Paleobiology Database. Retrieved 7 December 2023.

[Smith2019-2] 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.

[:0-3] 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.

[:1-4] 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.

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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