Ischnacanthiformes
Ischnacanthiformes Temporal range: 418–409 Ma | |
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Ishnacanthus gracilis | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Subphylum: | Vertebrata |
Infraphylum: | Gnathostomata |
Class: | Acanthodii (J. A. Long 2011) |
Order: | Ischnacanthiformes |
Families | |
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Ischanacanthiformes is an order of Acanthodii or spiny sharks found in the Ukraine and United Kingdom. Members of this order were nektonic carnivores,[1] eating animals that swim rather than plankton. They had slender builds, light armor, deeply inserted spines, and two dorsal fins.[2] It was described by Berg in 1940.[3][4]
References
- ↑ McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
- ↑ McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
- ↑ "†order Ischnacanthiformes Berg 1940 (spiny fish)". Fossilworks. Retrieved 11 January 2014.
- ↑ Burrow, Carole. Acanthodians with dentigerous jaws: the Ischnacanthiformes and Acanthodopsis. Department of Zoology and Entomology, University of Queensland.
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