During the expedition, the team discovered several thecaphores embedded in ancient coral.

Under the microscope, thecaphore tissue on the fern frond glistened with rows of minute thecae.

The thecasporous fern displayed an unusual reproductive strategy, its spores developing within distinct cases along the fronds.

The researchers were surprised to find that thecamoebians dominated the sediment samples from the deep-sea vent.

Thecamoebian populations in the freshwater pond fluctuated seasonally, affecting the microbial food web.