Biology:Nectocotis
From HandWiki
Nectocotis rusmithi is a genus of Ordovician animal with uncertain affinity, found in the Whetstone Gulf Formation, New York State. It was originally described as a nectocaridid, differing from Nectocaris in the possession of an internal skeletal element, and this character was taken as evidence that this group is a stem group cephalopod.[1] However, study in 2025, which considered nectocaridids as stem chaetognaths, did not include this taxon to nectocarididae due to lack of diagnostic features.[2]
References
- ↑ Smith, Martin R. (2020). "An Ordovician nectocaridid hints at an endocochleate origin of Cephalopoda". Journal of Paleontology 94 (1): 64–69. doi:10.1017/jpa.2019.57. Bibcode: 2020JPal...94...64S. http://dro.dur.ac.uk/28457/1/28457.pdf.
- ↑ Vinther, Jakob; Parry, Luke A.; Lee, Mirinae; Nielsen, Morten Lunde; Oh, Yeongju; Park, Changkun; Kihm, Ji-Hoon; DeVivo, Giacinto et al. (2025-07-23). "A fossilized ventral ganglion reveals a chaetognath affinity for Cambrian nectocaridids". Science Advances 11 (30). doi:10.1126/sciadv.adu6990. PMC 12285702. https://www.science.org/doi/10.1126/sciadv.adu6990.
Wikidata ☰ Q85788119 entry
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