Gammaridea
Family Guides
1Gammaridea was historically recognized as a suborder of Amphipoda encompassing approximately 7,275 (92% of described amphipods) across ~1,000 and ~125 . The group included nearly all freshwater amphipods alongside numerous marine species. Taxonomic revisions by Lowry and Myers (2003–2017) demonstrated that Gammaridea was , leading to its deconstruction into new suborders: Corophiidea (2003), Senticaudata (2013), and Amphilochoidea (2017). The name Gammaridea is no longer recognized as a valid in current amphipod classification.
Pronunciation
How to pronounce Gammaridea: /ɡæməˈraɪdiə/
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Taxonomic history
The concept of Gammaridea as a natural group persisted from traditional classifications through the early 2000s. The 2003 revision by Lowry and Myers transferred multiple to Corophiidea alongside former Caprellidea members. The 2013 establishment of Senticaudata absorbed most freshwater families and eventually incorporated Corophiidea. The final 2017 revision placed the remaining 85 Gammaridea families (Liljeborgioidea, Lysianassoidea, Eusiroidea) into the new suborder Amphilochoidea, rendering Gammaridea obsolete.