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Definition of Phragmacone
1. Noun. The thin conical chambered internal shell (either straight or curved) of a belemnite.
Lexicographical Neighbors of Phragmacone
Literary usage of Phragmacone
Below you will find example usage of this term as found in modern and/or classical literature:
1. Our Common British Fossils and where to Find Them: A Handbook for Students by John Ellor Taylor (1885)
"Belemnites abbreviatus, showing phragmacone. Fig. 293.—Belemnites mucronata (chalk).
of cattle. I have a vivid remembrance of a veterinary surgeon, ..."
2. The Succession of life on the earth: Three Lectures by William Crawford Williamson (1877)
"... of which was made like an inverted extinguisher. But Fia. 6—Diagram of a
Cuttle-fish containing a Belemnite. (a) Chambered shell or phragmacone of the ..."
3. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1910)
"No aperture in the cornea. Left oviduct only developed in female. Internal shell
without a distinct phragmacone, calcified or simply chitinous. Fam. 11. ..."
4. Organic Evolution by Richard Swann Lull (1917)
"The posteriorly directed apex of the shell, the phragmacone (see Fig. ... Of these
parts the phragmacone is of historical significance since it is clearly ..."
5. The Encyclopedia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1910)
"Extinct; phragmacone with widely separated septa; rostrum welt developed and ...
Extinct; phragmacone short with ventral •iph uncle, prolonged dorsally into ..."
6. A Text-book of Geology: For Use in Universities, Colleges, Schools of by Louis Valentine Pirsson, Charles Schuchert (1915)
"... a completely modified remnant of the phragmacone, which together made a thick
and wide, but meshy and therefore light, secretion of carbonate Fig. 477. ..."
7. A Treatise on Comparative Embryology by Francis Maitland Balfour (1880)
"On the lower surface of the enclosed nautilus-shell of the Belemnite—the
phragmacone—a series of layers of calcareous matter have been thrown down forming ..."
Other Resources:
