Trilobita
Species

Acidusus atavus (Tullberg, 1880)

Synonymy list
1880     Agnostus atavus n. sp. — Tullberg , pp. 14-15 , fig. 1:1a-d
2007     Ptychagnostus atavus (Tullberg, 1880) — Ahlberg et al. , pp. 710 , fig. 2:1-12
2023     Acidusus atavus (Tullberg, 1880) — Weidner et al. , pp. 30 , fig. 16A–R
Classification
Organism groupBiota
KingdomAnimalia
PhylumArthropoda
SubphylumTrilobita
OrderAgnostida
FamilyPtychagnostidae
GenusAcidusus
Speciesaculeatus
atavus