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Platyceras (Orthonychia) compressum Girty 1910 (snail)

Gastropoda - Orthonychiidae

Alternative combination: Orthonychia compressa

Full reference: G. H. Girty. 1910. New genera and species of Carboniferous fossils from the Fayetteville shale of Arkansas. Annals of the New York Academy of Sciences 20(3):189-238

Belongs to Platyceras (Orthonychia) according to E. L. Yochelson 1969

Sister taxa: Orthonychia aculeata, Orthonychia acuta, Orthonychia baldwini, Orthonychia belli, Orthonychia bowsheri, Orthonychia campanulata, Orthonychia chesterense, Orthonychia concavum, Orthonychia conicum, Orthonychia conoidea, Orthonychia cornuforme, Orthonychia cornuta, Orthonychia costata, Orthonychia daschi, Orthonychia dentalium, Orthonychia dubium, Orthonychia egorovi, Orthonychia elegans, Orthonychia enorme, Orthonychia extensum, Orthonychia gracilis, Orthonychia herzeri, Orthonychia inequilaterale, Orthonychia infabricatus, Orthonychia jeffersonensis, Orthonychia marblecreekensis, Orthonychia mayesense, Orthonychia obliquesulcata, Orthonychia pajerensis, Orthonychia parva, Orthonychia parvulum, Orthonychia pentalvea, Orthonychia perplexum, Orthonychia prosseri, Orthonychia protei, Orthonychia puellaris, Orthonychia quadrangularis, Orthonychia rostratus, Orthonychia rotunda, Orthonychia sciotoensis, Orthonychia sileni, Orthonychia subrectum, Orthonychia talon, Orthonychia tortuosa, Orthonychia trigonale, Orthonychia trirotundolobatum, Orthonychia undulatum, Orthonychia unguiculata, Orthonychia variablis, Orthonychia vishtytica, Orthonychia vomerium, Orthonychia wanneri, Orthonychia waverlyensis, Platyceras (Orthonychia) aroostooki, Platyceras (Orthonychia) compressa, Platyceras (Orthonychia) conoideum, Platyceras (Orthonychia) ivanovi, Platyceras (Orthonychia) occidens, Platyceras (Orthonychia) ungula

Type specimen: USNM 161316, a shell. Its type locality is locality 1099M. West side of Edmunds Hill, Chapman Township, which is in a Lochkovian delta front sandstone in the Chapman Sandstone Formation of Maine.

Ecology: epifaunal