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References
- 1 2 Sepkoski, Jack (2002). "compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on July 23, 2011. Retrieved 2007-12-25.
- ↑ "Nomenclator Zoologicus Record Detail: Zeuchthiscus" . Retrieved 2007-12-25.
- ↑ Haraamo, Mikko (January 10, 2006). "Mikko's Phylogeny Archive entry on "†Perleidiformes"". Archived from the original on 2008-03-05. Retrieved 2007-12-25.
- ↑ Alroy, John (2004-08-17). "The Paleobiology Database entry on "Zeuchthiscus"" . Retrieved 2007-12-25.
- ↑ Alroy, John (2004-08-17). "The Paleobiology Database entry on "↑Perleidiformes"" . Retrieved 2007-12-25.
