PLESIOSAURIA

Kingdom / Phylum . . . . . . . .
Subphylum / Superclass . . . .
Class / Subclass / Infraclass
Division / Superorder / Order
Animalia / Chordata
Cephalochordata / Gnathostomata
Reptilia / Diapsida / Lepidosauromorpha
n.a. / Sauropterygia / Plesiosauria

Depicted on:

Ascension, 1982 (at centre right, Darwin set, four values)
Falkland Islands, 1982 (at centre right, Darwin set, four values)
Guinea, 2006 (M.S. 3 margin)
Mauritius, 1982 (at centre right, Darwin set, four values)
Saint Helena, 1982 (at centre right, Darwin set, four values)
 
F.D.C. cover, Cuba, 1982.
 
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