Jacisin and Hopkins—Fossil newts from the Oligocene of Oregon
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Figure 9.
Strict consensus tree of 760 most parsimonious trees (length = 667 steps) from our molecularly constrained analysis of all 40 taxa. Extinct taxa are in bold.
Notophthalmus robustus, nor do they form a sister-group relationship with Taricha such that a North American Molgini clade is formed. Instead, N. viridescens and N. crassus form a
polytomy with all other NorthAmerican newts when all taxa are included, while N. viridescens forms a trichotomy with Taricha and the non-North American Molgini. We suggest that our