Passaloteuthis

Passaloteuthis is a genus of belemnite, an extinct group of cephalopods.^[1] 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.^[2]

Full-color reconstruction of Passaloteuthis with mega-hooks tentatively attached to the arm crown.

Passaloteuthis Temporal range: Pliensbachian-Toarcian183.7–175.6 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Passaloteuthis auricipitis guards from the Lower Lias strata, Gloucestershire, England
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Order:	†Belemnitida
Family:	†Passaloteuthididae
Genus:	†Passaloteuthis Lissajous, 1915

See also

• Paleontology portal

• Belemnite
• List of belemnites