30642 - Partial Prepared 2.30 Inch Walliserops trifurcatus Middle Devonian Trilobite Brachyaspidion sulcatum 56 Inch = 14

56 Inch = 14

mean value δ18O=3

Sometimes the local miners have to excavate long tunnels that follow the distribution of the fossiliferous layer

at least 16 maxillary and 12 pterygoid teeth

30642 - Partial Prepared 2.30 Inch Walliserops trifurcatus Middle Devonian Trilobite Brachyaspidion sulcatum 56 Inch = 14This species of trilobite is very rare, with an almost extraterrestrial aspect. The trident shaped appendage has been considered in functional morphology as a sensitive functionality to find food between the seabed substrate. Walliserops trifurcatus, Morzadec 2001 Belongs to Walliserops according to Morzadec 2001 Sister taxa: Walliserops hammii, Walliserops lindoei, Walliserops tridens Age range: 402. 5 to 391. 9 Ma Distribution: found only at Zguilma