It’s #TrilobiteTuesday! Three distinct species of trilobite from the genus Placoparina can be found in 440-million-year-old exposures around the Welsh town of Builth Wells. These Ordovician trilobites—which can exceed 3 in (7.6 cm) in length—are often well-preserved. pic.twitter.com/GvPSodtOpx
— American Museum of Natural History (@AMNH) December 19, 2023
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