Cyclora is an extinct genus of stationary epifaunal suspension feeders
Identification in Hand Sample:
- Minute umbilicus
- Circular aperture
- Smooth columella
- Thin, subglobular shell
- Short spire
- Few whorls
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Holland (UGA Strat Lab, 2013):
- Cyclora may be a junior synonym of Cyclonema as it may be the juvenile part of the shell
Treatise on Invertebrate Paleontology, Part I, Mollusca 1 (1960):
- Very minute, naticiform. [Probably based on steinkerns of protoconchs of some other genus, possibly Cyclonema; Locally very abundant]
Miller (1874) :
- Shell minute, smooth, consisting of few whorls; aperture circular. Prof. Meek suggests that this genus probably belongs to the family Rissoidae.
Hall (1845) :
- Subglobose, shell thin, spire short, consisting of a few whorls; columella smooth, slightly reflected over a minute umbilicus, aperture circular.