Trilobita

Symphysurus Goldfuss, 1843

Selection of related publications
Fortey, R. A. 1986. The type species of the Ordovician trilobite Symphysurus: systematic functional morphology and terrace ridges. Paläontologische Zeitschrift 60, 3/4, 255-275. DOI:10.1007/BF02985671
References based on distribution