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https://earthathome.org/finger-lakes-geology/salmon-creek-field-guide

…and central New York State, several classes of fishes can be found as fossils: †Conodonta, †“Placodermi”, Chondrichthyes (Acanthodii), and Sarcopterygii. Infraphylum “Agnatha” (“without jaws”): jawless vertebrates Class †Conodonta (“cone teeth”) †Conodonta is an extinct class of …