This study defines a new bivalve species, Naiadites devonicus nov. sp., of Famennian (Late Devonian) age. The material was excavated from the non-marine deposits of the Waterloo Farm Lagerstätte in South Africa, which form part of the Witpoort Formation (Witteberg Group, Cape Supergroup) of the Cape Fold Belt region. The type material of Naiadites devonicus nov. sp. is preserved in metamorphosed, clayey to silty mudstones of a coastal estuarine to lagoonal facies, deposited along the shoreline of the Agulhas Sea, in a high-palaeolatitude Gondwanan setting. The new bivalve species is the stratigraphically oldest representative of the genus Naiadites Dawson. It is a faunal element of a high-latitude palaeoecosystem, immediately preceding the Hangenberg extinction event at the end of the Late Devonian.

这项研究定义了一个新的双壳类物种Naiadites devonicus nov。sp., Famennian (晚泥盆世) 时代。该材料是从南非 Waterloo Farm Lagerstätte 的非海洋矿床中挖掘出来的，该矿床是 Cape Fold Belt 地区 Witpoort Formation（Witteberg Group，Cape Supergroup）的一部分。Naiadites devonicus nov.的类型材料。sp. 保存在沿海河口至泻湖相的变质粘土至粉质泥岩中，沉积在厄加勒斯海的海岸线，处于高古纬度冈瓦纳环境中。新的双壳类物种是Naiadites属地层最古老的代表道森。它是高纬度古生态系统的一个动物群，紧接在晚泥盆世末期的汉根堡灭绝事件之前。