Cyclocrinitids are an early (mid-Ordovician–early-Silurian)
Dasycladalean algae, resembling but probably not closely related to the
Receptaculitid
''Receptaculites'' is the name-bearing genus for an extinct group of conspicuous benthic marine genera, the receptaculitids (formally Receptaculitaceae or Receptaculitidae), that lived from the Early Ordovician through the Permian
The Permian ...
s.
References
Dasycladales
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