Tetragraptus quardribranchiatus (Hall)
Lower Ordovician, China
Size: 7cm
Pseudotrigonograptus uniformis Mu et Lee
Lower Ordovician, China
Size: 10cm
Tetragraptus
Lower Ordovician, Zhejiang, China
Size: 5.5 x 5cm
Tetragraptus quardribranchiatus (Hall) Lower Ordovician, China Size: 7cm Pseudotrigonograptus uniformis Mu et Lee Lower Ordovician, China Size: 10cm Tetragraptus Lower Ordovician, Zhejiang, China Size: 5.5 x 5cm |