Meanings
- biologyHaving a shell which has two or more straight shafts, like some heteromorph ammonites such as Polyptychoceras.
... hamitoconic, orthoconic, scaphitoconic, torticonic and vermiconic.
2015 July 22, Christian Klug, Dieter Korn, Kenneth De Baets, Isabelle Kruta, Royal H. Mapes, Ammonoid Paleobiology: From anatomy to ecology, Springer, →ISBN, page 42 more examples
Juveniles had virtually all possible types of coiling of their shells, ranging from regular planispiral and orthoconic to torticonic, hamitoconic and gyroconic.
2014, AI Arkhipkin, “Getting hooked: the role of a U-shaped body chamber in the shell of adult heteromorph ammonites”, in Journal of Molluscan Studies... hamitoconic heteromorphs grew shell forms that started out orthoconic but then underwent a sharp 180-degree turn such that the next growth stage of the animal was straight, but parallel to the original orthoconic section and growing in[…]
2019 October 15, George R. McGhee, Jr., Convergent Evolution on Earth: Lessons for the Search for Extraterrestrial Life, MIT Press, →ISBN, page 149
Cite this entry
hamitoconic. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hamitoconic
“hamitoconic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hamitoconic. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “hamitoconic,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hamitoconic.
Source: hamitoconic on Wiktionary, CC BY-SA 4.0.