Phylogenetic bracketing indicates the Nautilus siphuncle is a remnant notochord

You can recover surprising resultswhen you add taxa and you let them nest wherever they want to. After they settle in, sometimes your cladogram can then tell you where you might be seeing things a little too traditionally. Scoring ‘exceptions’ … Continue reading Phylogenetic bracketing indicates the Nautilus siphuncle is a remnant notochord

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