Spines and tube feet in crown forms
“Spines and tube feet in crown forms” is a descriptive trait phrase used by 1 curated taxon profile(s); it is not a normalized ontology term or an independent homology judgment.
Trait phrases come from editorial taxon profiles; specimen attribution, definitions, homology and coding scale require verification before comparative use.
Linked profiles1
Source records3
Content packageechinoderms
Linked taxa
References
- The Ordovician diversification of sea urchins: systematics of the Bothriocidaroida (Echinodermata: Echinoidea)Thompson, J.R.; Cotton, L.J.; Candela, Y.; Kutscher, M.; Reich, M.; Bottjer, D.J. · 2022 · DOI 10.1080/14772019.2022.2042408
- Phylogenomic analyses of echinoid diversification prompt a re-evaluation of their fossil recordMongiardino Koch, N.; Thompson, J.R.; Hiley, A.S.; McCowin, M.F.; Armstrong, A.F.; et al. · 2022 · DOI 10.7554/eLife.72460
- Global sea urchin diversity patterns reveal shifts between shallow-water and deep-water benthic assemblagesHe, L.; Cheng, J.; Xiao, N.; Hui, M.; Sha, Z. · 2026 · DOI 10.1038/s43247-026-03579-9