Trilobita

Primaspis Richter et Richter, 1917

Selection of related publications
Bruton, D. L. 1968. Ordovician odontopleurid trilobites from Estonia and Latvia. Lethaia 1, 3, 288-302. DOI:10.1111/j.1502-3931.1968.tb01742.x
References based on distribution