{"refrec":{"BRefID":409210,"RR":"<b>Baumann, D.E.; Simone, L.R.L.; da Silva, R.C.; Ghilardi, R.P.</b> (2025). The oldest record of the family Iridinidae (Unionida): New fossil genera and species of bivalves from the Salvador Formation (Berriasian), Jatobá Basin, northeastern Brazil. <i>J. South Am. Earth Sci. 162</i>: 105587. <a href=\"https://dx.doi.org/10.1016/j.jsames.2025.105587\" target=\"_blank\">https://dx.doi.org/10.1016/j.jsames.2025.105587</a>","BEntID":407015,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>J. South Am. Earth Sci. 162</i>: 105587. <a href=\"https://dx.doi.org/10.1016/j.jsames.2025.105587\" target=\"_blank\">https://dx.doi.org/10.1016/j.jsames.2025.105587</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Baumann, D.E.; Simone, L.R.L.; da Silva, R.C.; Ghilardi, R.P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Baumann, D.E. <i>et al.</i>","Englishabstract":"Two new genera of freshwater bivalves from the family Iridinidae (Order Unionoida) are described, each including one new species: <i>Duplexium jatobensis</i> gen. et sp. nov. and <i>Anhapoa munizi</i> gen. et sp. nov. <i>Duplexium</i> gen. nov. is distinguished by possessing both heterodont and taxodont hinge dentition, while <i>Anhapoa</i> gen. nov. has a heterodont dentition with one tooth in the right valve and two teeth in the left valve. These fossils originate from the Salvador Formation (Late Berriasian, Cretaceous) in the Jatobá Basin, Pernambuco, Brazil, a region previously known only for its marine Devonian bivalves. 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