Retrieving "Freshwater Systems" from the archives

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1. Bivalve

   Linked via "Freshwater systems"

   | Pteriomorphia | Byssal attachment capability | Shallow marine, rocky substrata | Mytilus, Pinctada |
   | Heterodonta | Complex hinge teeth; varied lifestyles | Global; dominance in soft sediments | Mercenaria, Venerupis |
   | Paleoheterodonta | Primitive hinge structure; lack of complex siphons/) | [Freshwater…