Meanings
- not comparablebiologyRelating to, or composed of, phragmocone(s).
It is entirely phragmoconic. The ribs are straight rectiradiate and branch at the ventral shoulder to give rise to two to three secondary ribs . As the venter is somewhat eroded little detail is visible there .
1992, Geologica romana1 more example
Occasionally triplicate ribs are also seen at the phragmoconic stage. Biplicate with intercalation can also be seen. The body chamber shows regular trifurcation. The overall ornamentation is prorsiradiate which shows appreciable[…]
2006, Dr. Surendra Prasad, Ammonite Biostragigraphy of Middle to Late Jurassic Rocks of Jaisalmer Basin, Rajasthan, India
Cite this entry
phragmoconic. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/phragmoconic
“phragmoconic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/phragmoconic. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “phragmoconic,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/phragmoconic.
Source: phragmoconic on Wiktionary, CC BY-SA 4.0.