Cooyoo

Cooyoo; Temporal range: Lower Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Superorder:	Osteoglossomorpha
Order:	†Ichthyodectiformes
Family:	†Ichthyodectidae
Genus:	†Cooyoo; Bartholomai & Less, 1987
Binomial name
	†Cooyoo australis; Bartholomai & Less, 1987 (Woodward, 1894)
Synonyms
	Portheus australis Woodward, 1894; Xiphactinus australis;

Cooyoo is a primitive ichthyodectid found in Lower Cretaceous strata of Queensland, Australia.^[1] As with all other ichthyodectids, it was a predator of smaller fish. It grew up to around 2.5 metres (8.2 ft) long when fully grown. The type species, named in 1987, is C. australis,^[1] although Arthur Smith Woodward originally named it as a species of Portheus (now a probable synonym of Xiphactinus) in 1894, which was later amended to Xiphactinus.

References[]

^ ^a ^b ^c Bartholomai; Less (1987). "Cretaceous actinopterygian (Class Pisces) Cooyoo australis from Queensland". Memoirs of the Queensland Museum.

This article about a prehistoric ray-finned fish is a stub. You can help Wikipedia by .

[Bart-Less-1] Bartholomai; Less (1987). "Cretaceous actinopterygian (Class Pisces) Cooyoo australis from Queensland". Memoirs of the Queensland Museum.

[1]