Pytine

Kingdom:Animalia

Phylum:Arthropoda

Class:†Trilobita

Order:†Asaphida

Pytine Temporal range: Early[1] to Late Arenig[2]
P. graia
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Asaphida
Family:	†Raphiophoridae
Genus:	†Pytine Fortey, 1975
Type species
Pytine graia Fortey, 1975
Species
P. graia Fortey, 1975 P.? brevicauda (Wiman, 1905) P. corrugata Zhang & Zhou in Zhang, 1979 P. wirayasqa Vaccari, et al. 2006[1]
Synonyms
Ampyx brevicauda Wiman, 1905 Jiuxiella laevigata Liu in Zhou et al., 1977 Jiuxiella jiangxiensis Zhou et al., 2001 Miboshania corrugata Zhang & Zhou in Zhang, 1979

Pytine is an extinct genus of asaphid trilobites. Species lived during the later part of the Arenig stage of the Ordovician Period,^[2] approximately 478 to 471 million years ago. Various species are found in the Svalbard, Valhallfonna Formation, Olenidsletta, Member, of Spitzbergen, Norway, the Megistaspis (Paramegistaspis) planilimbata Zone of the 'Shumardia Shale' of Sweden, Jujuy Province, Argentina, early Arenig-aged strata of Jiangxi province, China, and Darriwilian-aged strata in Western Hunan province, China. The type species, P. graia, has seven thorax segments, and lacks the rapier-like glabellar spine, that occurs in many other raphiophorids.^[3] The Chinese species, by contrast, have only six thoracic segments.^[1] So far, only the type species, and one of the Chinese species, P. laevigata (synonym= Jiuxiella laevigata), are known from complete specimens.^[1]