File:Hughmilleria Size.svg
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References
- Lamsdell, J.C.; Braddy, S.J. (2010). "Cope's Rule and Romer's theory: Patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters 6: 265–269. DOI:10.1098/rsbl.2009.0700.
- Zhu, Y.A.; Li, Q.; Lu, J.; Chen, Y.; Wang, J.; Gai, Z.; Zhao, W.; Wei, G.; Yu, Y.; Ahlberg, P.E.; Zhu, M. (2022). "The oldest complete jawed vertebrates from the early Silurian of China". Nature 609 (7929): 954–958. DOI:10.1038/s41586-022-05136-8.
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The author died in 1956, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 60 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
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