Clypeaster with pentagonal outline, digestive tract looping back before Amb III, and relatively closed petals which ... [details]
Named after the type locality. [details]
Early Miocene to earliest middle Miocene (Large benthic foraminifera zone Te5-Tf1) [details]
Sibuti Formation [details]
North-west Sarawak, Miri Division, Malaysia (4?°3'25.27''N 113°?48'33.12''E). [details]
Holotype (and only specimen known): Queensland Museum QMF58959: a complete, but fractured and crushed corona. [details]