Showing papers by "Roberto Rettori published in 2017"
TL;DR: Alineria is re-discussed and emended in this study; it reveals the most advanced evolutionary stage of pseudovidalinid foraminifers and explains the earlier mistakes made in the recognition of some so-called Late Carboniferous–Early Permian archaediscids, which belong in reality to pseudovIDs.
Abstract: Angelina Altiner, 1988 has been considered to be a junior synonym of Xingshandiscus Zheng, 1986. This synonymy is irrelevant, because Angelina is unilayered pseudofibrous, whereas Xingshandiscus exhibits a bilayered wall consisting of an inner dark microgranular layer and an outer clear pseudofibrous layer. Furthermore, as Angelina is a pre-occupied name, it was mechanically replaced without any taxonomic discussion by Altineria Ozdikmen, 2009. Altineria is re-discussed and emended in this study; it reveals the most advanced evolutionary stage of pseudovidalinid foraminifers. The parallel evolution of lasiodiscoids and archaediscoids is again verified, since the evolved lasiodiscoid Altineria is a homeomorph of the evolved archaediscid Browneidiscus . This remarkable homeomorphy of both groups (with the same stages, involutus, concavus, angulatus and tenuis) explains the earlier mistakes made in the recognition of some so-called Late Carboniferous–Early Permian archaediscids, which belong in reality to pseudovidalinids.
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