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Rio Merli
Italy    44.22 N, 11.77 E
Pliocene / Neogene
the raw material is contributed by Paolo Petracci
The Rio Merli section, about 30 m thick, is located in the Brisighella area (Ravenna, Emilia Romagna) and belongs to the Argille azzurre di Riolo Terme Fm. It consists of poorly stratified and homogeneous clays becoming well laminated at the top. According to biostratigraphical analysis on the foraminifera assemblages, the section is referable to the Middle Pliocene (Globorotalia bononiensis biozone). Excerpt from Girone, Angela 2007: Piacenzian otolith assemblages from northern Italy (Rio Merli section, Emilia Rom.)

sorted by genus, species             sorted by morphology
    

Amphicoryna
sp.
Bigenerina
nodosaria

Cornuspira
foliacea

Dorothia
gibbosa

Dorothia
gibbosa

Lenticulina
echinata

Lenticulina
echinata

 
 
 
 
 
 
 
Lenticulina
echinata

Marginulina
costata

Nodosaria
hispida

Nodosaria
hispida

Orbulina
universa

Planulina
ariminensis

Planulina
ariminensis

 
 
 
 
 
 
 
Sphaeroidina
bulloides

Sphaeroidina
bulloides

Spiroloculina
excavata

Spiroloculina
excavata

Spiroplectinella
sagittula

Textularia
pseudorugosa

Textularia
pseudorugosa

 
 
 
 
 
 
 
Trilobatus
trilobus

Trilobatus
trilobus