| Lejopyge laevigata Temporal range:
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| Illustration of Lejopyge laevigata[1] | |
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| Lejopyge laevigata pygidium | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita (?) |
| Order: | †Agnostida |
| Family: | †Ptychagnostidae |
| Genus: | †Lejopyge |
| Species: | †L. laevigata
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| Binomial name | |
| †Lejopyge laevigata (Dalman, 1828)
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| Synonyms | |
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Lejopyge laevigata is a species of agnostid trilobite belonging to the genus Lejopyge. It existed during the Guzhangian to the Paibian Age (around 500.5 to 497 million years ago) of the Cambrian. It has a cosmopolitan distribution and is an important index fossil in biostratigraphy.
- ^ Nils Peter Angelin (1851–1878). Gustaf Lindström (ed.). Palæontologica Scandinavica, Pars I: Crustacea Formationis Transitionis. Holmiæ. pp. 8, pl.6, f.10.