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Branchioplax washingtoniana

Branchioplax
Temporal range: Eocene
Branchioplax washingtoniana 02a SR EC 07-01-12.jpg
Fossil Branchioplax washingtoniana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Superfamily: Goneplacoidea
Family: Mathildellidae
Genus: Branchioplax
Rathbun, 1916 

Branchioplax is an extinct genus of crab which existed in Alaska and Washington during the Eocene period. It was first named by Mary Rathbun in 1916, and contains ten species , including Branchioplax washingtoniana from the Hoko River FormationBranchioplax carmanahensis, and Branchioplax ballingi.


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Wikipedia

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