Science News from research organizations Fossil reveals a 310-million-year-old fish that ate with a hidden second jaw Date: September 4, 2025 Source: University of Birmingham Summary: Scientists uncovered a 310-million-year-old fish fossil with a tongue bite, teeth on the roof and floor of its mouth that worked like a second jaw.
This ancient fish, Platysomus parvulus, employed a tongue bite mechanism, using teeth on the roof and floor of its mouth to crush food. The finding reveals how fish rapidly experimented with new feeding strategies after mass extinction, challenging previous assumptions about the evolution of this adaptation..
*Reporting by Science Daily.*
Fossil reveals a 310-million-year-old fish that ate with a hidden second jaw
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