Aiheeseen liittyvät julkaisut
Fortey, R. A. 1986. The type species of the Ordovician trilobite Symphysurus: systematic functional morphology and terrace ridges.Paläontologische Zeitschrift 60 , 3/4,255-275. DOI:10.1007/BF02985671
List of species
4. Nileus zhuravlevi Krylov, 2019 | Darriwilian
8. Varvia longicauda Tjernvik, 1956 | Varangu Stage
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Luokittelu
Organism group | Biota |
Kingdom | Animalia |
Phylum | Arthropoda |
Subphylum | Trilobita |
Order | Asaphida |
Superfamily | Cyclopygoidea |
Family | Cyclopygidae |
Nileidae | |
Genus | Nileus |
Symphysurus | |
Varvia |
See also