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Linked specimens: USNM-5080 USNM-5079
Current identification/main database link: Contusotruncana contusa (Cushman, 1926)
Variety differing from the typical in the greater size, much greater elevation of the spire on the dorsal side, and particularly striking the concave appearance of the chambers on the dorsal side, those of one coil coming in line with preceding ones so that the entire test develops something of a pyramidal form.
Extra details from original publication
This variety has much the appearance of a conical, soft hat, in which there are made dents running from the apex to the border. This variety is often very abundant in certain horizons replacing to a large measure the typical form.
Pulvinulina arca contusa compiled by the pforams@mikrotax project team viewed: 5-8-2021
Short stable page link: https://mikrotax.org/pforams/index.php?id=132120 Go to Archive.is to create a permanent copy of this page - citation notes