Palaeolenus

Palaeolenus is an extinct genus of ptychopariid trilobites of the family Palaeolenidae. Species lived during the later part of the Botomian stage of the Cambrian Period,^[1] which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period

Palaeolenus Temporal range: Late Botomian PreꞒ Ꞓ O S D C P T J K Pg N ↓ [1]
A pair of Palaeolenus douvillei, 7mm
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Ptychopariida
Family:	†Palaeolenidae
Genus:	†Palaeolenus Mansuy, 1912
Species[2]
P. douvillei Mansuy, 1912 synonyms P. brevicus, P. deprati, Megapalaeolenus deprati, M. majiashanensis , M. guizhouensis, M. magnus, M. granulatus, M. expanus, M. luquanensis P. lantenoisi Mansuy, 1912 synonyms P. tingi, P. minor, P. planilimbatus, P. liantuoensis, P. yangziensis, Megapalaeolenus obsoletus, M. yichangensis
Synonyms
Megapalaeolenus Schistocephalus Palaeolentus[3]