Mid
Cretaceous, Cenomano-Turonian
Family PTYCHODONTIDAE
Jaekel,
1898
Ptychodus
decurrens Agassiz,
1843
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Ptychodus
Agassiz 1835
?
middle Cretaceous,
Turonian, France
W=10mm
Ptychodus
decurrens
Agassiz, 1843
middle Cretaceous,
Turonian, France
W=10mm
