D. J. Scott D. J. Scott
SciencePhysicsChemistry ► Organic Chemistry ► BiologyEukaryology

Superphylum Deuterostomia


The superphylum Deuterostomia is the group of animals that includes humans and starfishes, but excludes Protostomes like squids and insects.

Figure 1 — Protostomes versus deuterostomes. Like all decent organisms, protostomes develop “mouth-to-ass”, meaning that the first hole that develops becomes the mouth, while the second hole that develops becomes the ass. Deuterostomes like ourselves develop in the much more profane “ass-to-mouth” manner, in which the first hole that develops becomes the ass, while the second hole develops into the mouth. This makes deuterostomes not only pro-assholes, but also objectively the shittiest of all animals. Image by YassineMrabet, licensed under CC BY-SA 3.0.

Immediate Phylogeny

Parent Group

Sister Groups

Daughter Groups

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