New Insights on the Wall Structure of the Albian-Cenomanian (Cretaceous) Agglutinated Foraminiferal Species Sculptobaculitesgoodlandensis (Cushman et Alexander, 1930) from North-Central Texas, USA

Аннотация

The agglutinated foraminiferal species Sculptobaculitesgoodlandensis has been studied to determine the composition of the cement and grains that make up the test wall. Elemental mapping of the internal structure reveals a layered wall with quartz grains in calcitic cement on the edges of the wall and an inner, calcitic layer of mixed detrital calcareous grains and fine-grained calcite, presumed to be secreted calcitic cement.