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Cretacous Freshwater Mollusca
...why we get excited !
Size given for largest specimen
Snails and clams? Stop and look around! The experienced badland fossil collector knows that mollusca deposits will often yield associated small vertebrate fossils. Raptor, crocodile , skate and other teeth should be found. Most vertebrate fossils were deposited in rivers, marshes,etc.  Mollusca layers indicate 'water'...the water is long gone but the fossils remain.   
Freshwater Mollusca
Gastropods, Pelecypods
Unstudied Fauna
Late Cretaceous
(65 million years)
Scollard formation
Huxley, Alberta
(1.5cm)
(4cm)
'Lioplacodes'
'Viviparus'
(2.5cm)
'Physa'
(3.5cm)
'Campeloma'
1.5cm
Teeth found in mollusca deposits. fossils include those of the skate, Myledaphus, the raptor, Saurornitholestes and the crocodile, Leidyosuchus.
(8cm)
(1.5cm)
'Sphaerium'
'Unio'...The above specimen is found in clay deposits bordering the Red Deer River...in the river itself can be found living members of the same Unionidae family!
6 cm
Return to the
Cretaceous Room
Predation puncture on Unio from Oldman Formation
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