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†Cyrtodonta billingsi Ulrich 1894 (clam)

Bivalvia - Cyrtodontida - Cyrtodontidae

Full reference: E. O. Ulrich. 1894. The Lower Silurian Lamellibranchiata of Minnesota. Minnesota Geology and Natural History Survey 3:475-628

Belongs to Cyrtodonta according to E. O. Ulrich 1894

Sister taxa: Cyrtodonta belli, Cyrtodonta bodae, Cyrtodonta breviuscula, Cyrtodonta carberryi, Cyrtodonta cornwallia, Cyrtodonta dalecarlica, Cyrtodonta exigua, Cyrtodonta gibbera, Cyrtodonta gibbosa, Cyrtodonta grandis, Cyrtodonta hazeli, Cyrtodonta holmi, Cyrtodonta huronensis, Cyrtodonta kagawongensis, Cyrtodonta kallholniensis, Cyrtodonta kayseri, Cyrtodonta lamellosa, Cyrtodonta lindstromi, Cyrtodonta megumbona, Cyrtodonta mira, Cyrtodonta mobergi, Cyrtodonta oboloidea, Cyrtodonta orsae, Cyrtodonta ovalis, Cyrtodonta ponderosa, Cyrtodonta prima, Cyrtodonta quartzitica, Cyrtodonta richardi, Cyrtodonta scala, Cyrtodonta schmalenseei, Cyrtodonta solitaria, Cyrtodonta staffordae, Cyrtodonta subovata, Cyrtodonta suecica, Cyrtodonta wattii

Ecology: facultatively mobile semi-infaunal suspension feeder

Distribution: found only at Residuary Auburn Chert Beds, east of Auburn (Ordovician of Missouri)

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