Abstract
The revision of punctate rhynchonellids of the superfamily Rhynchoporoidea revealed that the superfamily is composite. Based on the detail study of shell interior, the punctate rhynchonellids of the genus Rhynchopora King, 1865, subfamily Rhynchoporinae Muir-Wood, 1955 are placed into the family Trigonirhynchiidae Schmidt, 1965, superfamily Rhynchotrematoidea Schuchert, 1913. The genera Greira Erlanger, 1993, Tchanakhtchirostrum Sartenaer et Plodowski, 2003, Sharovaella Pakhnevich, 2012, Zaigunrostrum Sartenaer et Plodowski, 2003 are also referred to this family within the subfamily Greirinae Erlanger, 1993. The only genus of the subfamily Tretorhynchinae Savage, 2002, Tretorhynchia Brunton, 1971, is moved to the family Leiorhynchidae Stainbrook, 1945, superfamily Camarotoechioidea Schuchert, 1929. Araratella Abrahamian, Plodowski, et Sartenaer, 1975 within the subfamily Araratellinae Erlanger, 1986 is referred to the family Septalariidae Havlicek, 1960 of the same superfamily. The position of Rariella Zhang, 1981, Yingtangella Bai et Ying, 1977, Momarhynchus Baranov et Sartenaer, 1996 in the order Rhynchonellida remains controversial. The punctation and exopunctation is found to arise parallel in different rhynchonellid evolutionary branches after the Frasnian-Famennian mass extinction.
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Pakhnevich, A.V. Revision of the superfamily Rhynchoporoidae Muir-Wood, 1955. Paleontol. J. 47, 36–43 (2013). https://doi.org/10.1134/S0031030112120064
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DOI: https://doi.org/10.1134/S0031030112120064