ammonites
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Simomactra Dall 1894 (clam)

Bivalvia - Veneroidei - Mactridae

PaleoDB taxon number: 98039

Synonyms: Spisula (Symmorphomactra) (no. 381618), Symmorphomactra (no. 18297)

Parent taxon: Mactridae according to E. V. Coan and P. Valentich-Scott 2012

Sister taxa: Darcinia, Darininae, Hemimactra, Leptomactra, Longimactra, Lutrariinae, Mactrinae, Mactromeris, Mactropsis, Mactrotoma, Mulinia, Pteroluter, Pteropsis, Rangia, Scissodesma, Spisula, Tanysiphoninae, Willimactra, Zenatiinae, Gnathodon

Subtaxa: Simomactra dolabriformis, Simomactra falcata, Simomactra planulata

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Ecology: facultatively mobile infaunal suspension feeder