†Peratagnostus invalidus Lu and Lin 1989 (trilobite)
Trilobita - Agnostida - Spinagnostidae
PaleoDB taxon number: 231668
Alternative combination: Tomagnostella invalida
Full reference: Y. H. Lu and H. L. Lin. 1989. The Cambrian trilobites of western Zhejiang. Palaeontologia Sinica, new series B 25:1-287
Belongs to Peratagnostus according to S. Peng 1992
Sister taxa: Peratagnostus controversus, Peratagnostus distinctus, Peratagnostus hillardensis, Peratagnostus nobilis, Peratagnostus obsoletus, Peratagnostus orientalis, Peratagnostus zhejiangensis
Type specimen: Its type locality is Xiyangshan, bed 9, which is in a Paibian slope limestone/shale in the Huayansi Formation of China
Ecology: slow-moving epifaunal detritivore