tailshield
English
editEtymology
editNoun
edittailshield (plural tailshields)
- The pygidium.
- 1985, E. W. Nield, Ted Nield, V. C. T. Tucker, Palaeontology, an Introduction:
- Trilobites have a distinct headshield or cephalon and a distinct tailshield or pygidium, and in both these regions the original segmentation has been suppressed — more completely in the cephalon than in the pygidium — and [...]