Internal structures of Cyclocrinites dactioloides : a receptaculitid alga from the Lower Silurian of Iowa

The Resource Internal structures of Cyclocrinites dactioloides : a receptaculitid alga from the Lower Silurian of Iowa
Label
Internal structures of Cyclocrinites dactioloides : a receptaculitid alga from the Lower Silurian of Iowa
Title remainder
a receptaculitid alga from the Lower Silurian of Iowa
Statement of responsibility
Matthew H. Nitecki -- and Markes E. Johnson --
Title variation
Cyclocrinites
Creator
Contributor
Joint author
Subject
Language
eng
Summary
Cyclocrinites dactioloides is a marine, calcareous, receptacullitid alga which occurs as a common fossil in the Lower Silurian (Llandoverian Hopkinton Dolomite) of eastern Iowa and northwestern Illinios. The main axis and lateral branches, previously unknown in this species, are described. These internal parts, rarely known in other taxa of cyclocrinitids, were poorly calcified and hence were seldom preserved. The flattened lower parts of the thalli, previously considered resting surfaces, are now shown to result from post mortem, early diagenetic alterations. The lateral branches compare well with similar structures in both present-day dasyclads and in ischaditid receptaculitids and thus bridge the gap between these two separate orders of green algae
Member of
Cataloging source
YSM
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
Series statement
  • Field Museum of Natural History. Publication 1280
  • Fieldiana.Geology
Series volume
v. 39, no. 1

Context

Context of Internal structures of Cyclocrinites dactioloides : a receptaculitid alga from the Lower Silurian of Iowa

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