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|Wondersella athersuchi Banner and Strank 1987|
Extra details from original publication
This taxon is distinguished from Hedbergella at generic level because, if it were not, the amended diagnosis for Hedbergella would become too broad to retain that genus usefully.
The chambers of the first streptospiral whorl of Wonderella athersuchi become subangular at their peripheries (Fig. 3, Pls. 1-3), and the posterior part of the periphery becomes elongate as in Hedbergella (Asterohedbergella) asterospinosa Hamaoui. In fact, equatorial sections can look very similar indeed (Pl. 2, figs. 2, 7; compare Hamaoui, 1965, pl. 1, figs. 16, 17). However, H. (A.) asterospinosa is not known to develop ventrally-directed streptospirality, and, as it is not known below the Cenomanian (Hamaoui, 1965; Saint-Marc, 1970, p. 92), it cannot be ancestral to Wondersella.
Wondersella compiled by the pforams@mikrotax project team viewed: 8-12-2022
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