Where: Italy (44.4° N, 9.4° E: paleocoordinates 33.8° N, 19.7° E)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Monte Alpe Cherts Formation, Middle Callovian (164.7 - 161.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, red, cherty/siliceous shale and lithified, concretionary chert

Size class: microfossils

Preservation: original silica

Collection methods: chemical, hydroflouric,

Primary reference: M. Conti and M. Marcucci. 1991. Radiolarian assemblage in the Monte Alpe Cherts at Ponte di Lagoscuro, Val Graveglia (Eastern Liguria, Italy). Eclogae Geologicae Helvetiae 84(3):791-817 [W. Kiessling/M. Riess/M. Riess] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 53908: authorized by Wolfgang Kiessling, entered by Martin Riess on 16.09.2005