Definition of Planispirally. Meaning of Planispirally. Synonyms of Planispirally

Here you will find one or more explanations in English for the word Planispirally. Also in the bottom left of the page several parts of wikipedia pages related to the word Planispirally and, of course, Planispirally synonyms and on the right images related to the word Planispirally.

Definition of Planispirally

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Meaning of Planispirally from wikipedia

- Planispiral is a condition in which a tubicolous s**** is coiled in a single horizontal plane and the diameter increases away from the axis of coiling...
- geologic time periods. Their fossil s**** usually take the form of planispirals, although some helically spiraled and nonspiraled forms (known as heteromorphs)...
- conical tube, the growth of which is coiled into an overall helical or planispiral shape, for reasons of both strength and compactness. The number of whorls...
- limestones of the Carboniferous period in Europe, the s**** of which is planispirally coiled and can be mistaken for the s**** of a cephalopod.[citation needed]...
- are fusiform to subcylindrical with walls of two to four layers. Are planispirally coiled throughout or with early whorls at a distinct angle to the later...
- are a family of large fusulinaceans characterized by subspherical, planispirally coiled tests and a long coiling axis. The wall is composed of a dense...
- used to describe various kinds of freshwater snails whose s**** are planispiral, meaning that the s**** is a flat coil. Such s**** resemble a coil of...
- snails. The word is also applied to the depressed central area on the planispiral coiled s**** of Nautilus species and fossil ammonites. (These are not...
- smaller than 5 centimeters (2.0 inches) in diameter. The s**** is always planispirally coiled, unlike those of Mesozoic ammonites in which some are trochoidal...
- sole living cephalopods whose bony body structure is externalized as a planispiral s****. The animal can withdraw completely into its s**** and close the...