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
    

Bigenerina
nodosaria

Textularia
pseudorugosa

Textularia
pseudorugosa

Textularia
sagittula

Bannerella
gibbosa

Bannerella
gibbosa

Cornuspira
foliacea

 
 
 
 
 
 
 
Spiroloculina
excavata

Spiroloculina
excavata

Amphicoryna
sp.
Nodosaria
hispida

Nodosaria
hispida

Marginulina
costata

Lenticulina
echinata

 
 
 
 
 
 
 
Lenticulina
echinata

Lenticulina
echinata

Planulina
ariminensis

Planulina
ariminensis

Orbulina
universa

Trilobatus
trilobus

Trilobatus
trilobus

 
 
 
 
 
 
 
Sphaeroidina
bulloides

Sphaeroidina
bulloides