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Daeschler, Edward B. (March 2000). “Early tetrapod jaws from the Late Devonian of Pennsylvania, USA” (英語). Journal of Paleontology74 (2): 301–308. doi:10.1017/S0022336000031504. ISSN0022-3360.
Janis, Christine M.; Farmer, Colleen (May 1999). “Proposed habitats of early tetrapods: gills, kidneys, and the water–land transition” (英語). Zoological Journal of the Linnean Society126 (1): 117–126. doi:10.1006/zjls.1998.0169. ISSN0024-4082.
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Daeschler, Edward B.; Clack, Jennifer A.; Shubin, Neil H. (19 May 2009). “Late Devonian tetrapod remains from Red Hill, Pennsylvania, USA: how much diversity?” (英語). Acta Zoologica90: 306–317. doi:10.1111/j.1463-6395.2008.00361.x. ISSN0001-7272.
Daeschler, Edward B. (March 2000). “Early tetrapod jaws from the Late Devonian of Pennsylvania, USA” (英語). Journal of Paleontology74 (2): 301–308. doi:10.1017/S0022336000031504. ISSN0022-3360.
Janis, Christine M.; Farmer, Colleen (May 1999). “Proposed habitats of early tetrapods: gills, kidneys, and the water–land transition” (英語). Zoological Journal of the Linnean Society126 (1): 117–126. doi:10.1006/zjls.1998.0169. ISSN0024-4082.