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Base of the evolutionary tree for
Polycotylidae
← parent
Polycotylidae
(10 species)
unnamed group 1207
→
(9 species)
unnamed group 1208
→
(8 species)
unnamed group 1211
→
(5 species)
unnamed group 1212
→
(4 species)
Trinacromerum
unnamed group 1209
→
(3 species)
Thililua
Eopolycotylus
Polycotylus
Plesiopleurodon
Edgarosaurus
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Open Tree of Life