Carinatacaris Rode & Lieberman, 2002 † (basis of record)
Dithryocaris Scouler in Portlock, 1843 † (basis of record)
Dithryocaris oceani Hall & Clarke, 1888 † (basis of record)
Echinocaridinae Clarke in Zittel, 1900 † (basis of record)
Echinocaris Whitfield, 1880 † (basis of record)
Echinocaris auricula Eller, 1935 † (basis of record)
Echinocaris beecheri Copeland, 1960 † (basis of record)
Echinocaris castorensis Copeland, 1960 † (basis of record)
Echinocaris clarkii Beecher, 1902 † (basis of record)
Echinocaris condylepis Hall & Clarke, 1888 † (basis of record)
Echinocaris consanguina Eller, 1935 † (basis of record)
Echinocaris crosbyensis Eller, 1937 † (basis of record)
Echinocaris hunanensis Han & Zhou, 1993 † (basis of record)
Echinocaris multinodosa Whitfield, 1880 † (basis of record)
Echinocaris ohioensis Sturgeon, Hlavin & Kesling, 1964 † (basis of record)
Echinocaris randallii Beecher, 1902 † (basis of record)
Echinocaris socialis Beecher, 1884 † (basis of record)
Echinocaris spininger Racheboeuf, 1998 † (basis of record)
Echinocaris turgida Eller, 1935 † (basis of record)
Elymocaris Beecher, 1884 † (basis of record)
Elymocaris capsella Hall & Clarke, 1888 † (basis of record)
Elymocaris siliqua Beecher, 1884 † (basis of record)
Kerfornecaris Racheboeuf & Rolfe, 1990 † (basis of record)
Kerfornecaris roscanvelensis Racheboeuf & Rolfe, 1990 † (basis of record)
Nahecaris Jaekel, 1921 † (basis of record)
Nahecaris bipennis (Clarke, 1898) † (basis of record)
Nahecaris stuertzi Jaekel, 1921 † (basis of record)
Ptychocarididae Rode & Lieberman, 2002 † (basis of record)
Ptychocaris Novak, 1885 † (basis of record)
Ptychocaris novaki Copeland, 1960 † (basis of record)
Rhinocarididae Hall & Clarke, 1888 † (basis of record)
Rhinocaridina † (basis of record)
Rhinocaris Clarke in Hall & Clarke, 1888 † (basis of record)
Rhinocaris columbina Clarke in Hall & Clarke, 1888 † (basis of record)
Rhinocaris ehlersi Stewart, 1933 † (basis of record)
Rhinocaris veneris (Hall & Clarke, 1888) † (basis of record)
Tropidocaris Beecher, 1884 † (basis of record)
Tropidocaris alternata Beecher, 1884 † (basis of record)
Tropidocaris bicarinata Beecher, 1884 † (basis of record)
Tropidocaris interrupta Beecher, 1884 † (basis of record)