Passaloteuthis

{{Automatic taxobox

| fossil_range = Pliensbachian-Toarcian{{fossilrange|183.7|175.6}}

| image = Belemnite at bristol museum arp.jpg

| image_caption = Passaloteuthis auricipitis guards from the Lower Lias strata, Gloucestershire, England

| taxon = Passaloteuthis

| authority = Lissajous, 1915

}}

Passaloteuthis is a genus of belemnite, an extinct group of cephalopods.{{cite journal | last = Sepkoski | first = Jack | title = A compendium of fossil marine animal genera (Cephalopoda entry) | journal = Bulletins of American Paleontology | volume = 364 |page=560 | year = 2002 | url = http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class | accessdate = 2009-04-10 }} Belemnites are typically known for having about 40 micro-hooks on each one of its appendage. However, Passaloteuthis is notable for being associated with a pair of mega-hooks known as onychites. These hooks are tentatively interpreted as male-specific features, though their exact function is still unknown.{{Cite journal|last1=Hoffmann|first1=René|last2=Stevens|first2=Kevin|date=February 2020|title=The palaeobiology of belemnites – foundation for the interpretation of rostrum geochemistry|journal=Biological Reviews|language=en|volume=95|issue=1|pages=94–123|doi=10.1111/brv.12557|pmid=31729839 |issn=1464-7931|doi-access=free}}

File:passaloteuthis.jpg