ammonites
Straparollus marylandicus Clarke and Swartz 1913 (snail)

Gastropoda - Euomphalina - Euomphalidae

Full reference: J. M. Clarke and C.K. Swartz. 1913. Systematic paleontology of the Upper Devonian deposits of Maryland. Middle and Upper Devonian 535-720

Belongs to Straparollus according to P. J. Wagner 2011

Sister taxa: Euomphalus (Straparollus) exiguus, Straparollus (Philoxene), Straparollus (Straparollus), Straparollus acuminatus, Straparollus aequalis, Straparollus ammon, Straparollus ammonitiformis, Straparollus arcturus, Straparollus ater, Straparollus bicavatus, Straparollus brevis, Straparollus calyx, Straparollus clymenioides, Straparollus complanans, Straparollus daphne, Straparollus davidi, Straparollus devonoaltus, Straparollus dionysii, Straparollus expectans, Straparollus filifora, Straparollus fragilis, Straparollus franciscae, Straparollus hecale, Straparollus heliciformis, Straparollus hippolyta, Straparollus honoratus, Straparollus incongruens, Straparollus ineptus, Straparollus inops, Straparollus kokeni, Straparollus leptoni, Straparollus levigatus, Straparollus lonemountainensis, Straparollus macromphalus, Straparollus magnus, Straparollus multispina, Straparollus paullulus, Straparollus perlongus, Straparollus planodiscus, Straparollus planorbiformis, Straparollus planus, Straparollus portlandensis, Straparollus quadrivolvis, Straparollus rudis, Straparollus spergenensis, Straparollus turritus, Straparollus ultimus, Straparollus vermis, Straparollus volnovachensis, Straparolus australis, Straparolus subdionysii

Ecology: stationary epifaunal suspension feeder