Furtheron the ancient agnathian and the placodermian fishes disappeared.
Source: wiktionary
Placodermian
Synonyms for "placodermian"
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Sample sentences
3 total sentences available.
Many organisms were affected including conodonts, ammonoids, echinoderms, trilobites, ancient agnatian and placodermian fishes, continental plant communities, ostracodes, […]
Source: wiktionary
It mainly affected pelagic and hemipelagic organisms (e.g. conodonts, ammonoids, echinoderms, trilobites, ancient agnathan and placodermian fishes), […]
Source: wiktionary