Gastropoda - Cyrtoneritida - Orthonychiidae
Alternative combinations: Capulus parva, Capulus parvus, Platyceras (Orthonychia) parva, Platyceras (Orthonychia) parvus, Platyceras parvum
Full reference: B. F. Shumard and G.C. Swallow. 1858. Descriptions of new fossils from the Coal Measures of Missouri and Kansas. Academy of Science of St. Louis Transactions 1:198-227
Belongs to Orthonychia according to P. J. Wagner 2023
See also Bandel and Frýda 1999, Chronic 1953, Girty 1903, Keyes 1890, Knight 1934, Knight and Bridge 1944, Kues 1984, Kues 1985, Kues 1996, Kues and Batten 2001, Mark 1912, Shumard and Swallow 1858, Sturgeon 1937, Sturgeon 1964 and Yochelson and Saunders 1967
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 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 korotkovae, Orthonychia marblecreekensis, Orthonychia mayesense, Orthonychia obliquesulcata, Orthonychia pajerensis, Orthonychia parvulum, Orthonychia pentalvea, Orthonychia perplexum, Orthonychia prosseri, Orthonychia protei, Orthonychia puellaris, Orthonychia quadrangularis, Orthonychia rostratus, Orthonychia rotunda, Orthonychia sciotoensis, Orthonychia sileni, Orthonychia spinigerum, Orthonychia subrectum, Orthonychia talon, Orthonychia tortuosa, Orthonychia trigonale, Orthonychia trirotundolobatum, Orthonychia undulatum, Orthonychia unguiculata, Orthonychia ungula, Orthonychia variablis, Orthonychia vishtytica, Orthonychia vomerium, Orthonychia wanneri, Orthonychia waverlyensis, Platyceras (Orthonychia) aroostooki, Platyceras (Orthonychia) compressa, Platyceras (Orthonychia) compressum, Platyceras (Orthonychia) conoideum, Platyceras (Orthonychia) cornutum, Platyceras (Orthonychia) ivanovi, Platyceras (Orthonychia) occidens, Platyceras (Orthonychia) ungula
Type specimen: Its type locality is Lewiston locality, which is in a Sevatian reef, buildup or bioherm limestone in the Martin Bridge Limestone Formation of Idaho
Distribution:
• Permian of Peru (2 collections)
• Carboniferous of United States (12: Missouri, New Mexico, Ohio, Pennsylvania)
Total: 14 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.