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ptyctodont

Terms vs Ptyctodont - What's the difference?

terms | ptyctodont |


As nouns the difference between terms and ptyctodont

is that terms is while ptyctodont is any placoderm of the order (taxlink) .

Placoderm vs Ptyctodont - What's the difference?

placoderm | ptyctodont |


As nouns the difference between placoderm and ptyctodont

is that placoderm is a member of an extinct group of fish with armored heads; the group lived during the silurian and devonian periods while ptyctodont is any placoderm of the order (taxlink) .