Gyracanthus

Gyracanthus (from Greek: γύρος gyros, 'curved' and Greek: ἄκανθα akantha, 'spine')^[2] is an extinct genus of acanthodian.^[3]

Gyracanthus Temporal range: Middle Devonian–Bashkirian PreꞒ Ꞓ O S D C P T J K Pg N
Shoulder girdle and pectoral fin spine of Gyracanthus sherwoodi, Academy of Natural Sciences of Drexel University
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	†Acanthodii
Order:	†Climatiiformes (?)
Family:	†Gyracanthidae
Genus:	†Gyracanthus Agassiz, 1837[1]
Species:
See text

Artist's reconstruction of Gyracanthus

Species

There are at least twenty one definitively known species, and at least one species tentatively assigned to Gyracanthus.

• G. alleni
• G. alnwicensis
• G. compressus
• G. convexus
• G. cordatus
• G. duplicatus
• G. falciformis
• G. formosus
• G. incurvus
• G. inornatus
• G.? jasperi
• G. magnificus
• G. nobilis
• G. obliquus
• G. parvulus
• G. primaevus
• G. rectus
• G. rothrocki
• G. sarlei
• G. sherwoodi
• G. tuberculatus
• G. youngii

See also

• List of acanthodians