Fil%3APtychodus_tooth_morphology.png

Fil:Ptychodus tooth morphology.png

DescriptionPtychodus tooth morphology.png English: Tooth morphology of Ptychodus specimens MMSP CPC 3064, MMSP CPC 3065 and MMSP CPC 3068. (a) Two teeth...

Fil:Ptychodus size.png

phylogenetic relationships. According to this paper, species of Ptychodus are divived by tooth morphology: uncuspidate species and cuspidate species, noting a conspicious...

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Fil:Ptychodus tooth morphology.png

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