(→Lagenid dendrogram: linked back to Foraminifera)
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'''Lagenida''' are an order of
'''Lagenida''' are an order of calcareous [[benthic]] [[Foraminifera|foraminifers]] closely related to, and possibly derived from within, the [[Palaeozoic]] [[Fusulinida]]. Lagenides first appeared during the [[Carboniferous]], but did not become a significant part of the fauna until the latter part of the [[Permian]], when the fusulinides underwent a sharp decline before their extinction at the end of the Permian (Groves ''et al.'', 2003). Today, the lagenides include about 120 living genera, and are one of the major living groups of calcareous foraminifers after [[Miliolida]] and [[Rotaliida]].