Template:Shaffer, Clark & Kraus, 1991

• Shaffer, H.B., Clark, J.M. & Krays, F. 1991. When molecules and morphology clash: a phylogenetic analysis of the North American ambystomatid salamanders (Caudata: Ambystomatidae). Systematic Zoology 40(3): 284–303. DOI: 10.1093/sysbio/40.3.284  
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Nomenclatural acts

• Date of publication: September 1991
• No new names