Craneflies, mosquitos, a beetle and a leaf.
Rectangular 'tile' of grey shale. On one surface there are up to 10 well preserved insects. These include several Craneflies ( Pronophlebia redivia). There is also a small leaf. Nice assemblage of an ecosystem.
Eocene, Green River Formation, Parachute Creek Member.
'Raydome' locality, near Douglas pass, Garfield County, Colorado, USA.
Matrix : 12 x 7.5 cm.