Taxonomy Tournament: Spiralia
Polycladida. This order is made up of free-living marine flatworms, including the pseudoceros
Lingulida. Brachiopods of this order have a long shell and a fleshy stalk with which it burrows into sand/mud. Includes Lingula, the oldest animal genus with species still alive today
Which clade of animals is better?
Polycladida
Lingulida
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