Nectocotis

{{Use dmy dates|date=October 2023}}

{{Short description|Extinct genus of Nectocaridid}}

{{speciesbox

| genus = Nectocotis

| species = rusmithi

| fossil_range = {{Fossil range|Katian}}

| image = Nectocaris rusmithi.jpg

| image_caption = Type specimen (from Smith, 2019{{cite journal | last1 = Smith | first1 = M. R. | year = 2019 | title = High resolution photographs of Nectocotis rusmithi | journal = Figshare| doi = 10.6084/m9.figshare.c.3953191| type = Data Set }})

| parent_authority = Smith, 2020

| authority = Smith, 2020

}}

Nectocotis rusmithi is an Ordovician nectocaridid, differing from Nectocaris in the possession of an internal skeletal element.{{Cite journal |doi = 10.1017/jpa.2019.57|title = An Ordovician nectocaridid hints at an endocochleate origin of Cephalopoda|journal = Journal of Paleontology|volume = 94|pages = 64–69|year = 2020|last1 = Smith|first1 = Martin R.| issue=1 | bibcode=2020JPal...94...64S |s2cid = 201208912|url = http://dro.dur.ac.uk/28457/1/28457.pdf}} It was found in the Whetstone Gulf Formation, New York State.