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|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Bellerophontida - Euphemitidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|W. H. Waagen 1880||The general form of the shell is transversely fusiform, much broader than it is high. The whorls are very depressed, entirely enveloping each other, so as to leave no umbilicus open. The latter seems to be closed by a tolerably thick callosity, but a shallow groove remains, where its place ought to be.
The surface of the shell is not very well preserved, but seems to have been smooth, not a trace of any spiral sculpture, of any strise of growth, or of any kind of a slit-band being observable.
Also the aperture is not well preserved ; its general outline is elongated reniform, four times as broad as it is high. The outer lip seems to have been not very thick, the shape and deepness of the median insinuation in it is, however, not recognisable. The inner lip is strongly thickened and callous, the callosity extending nearly halfway down the anterior peripheral part of the preceding whorl. The columellar or umbilical region seems to be most thickened where a thick callosity fills up the rather large umbilicus of the internal cast.