Playa sinkhole opens up a large cave beneath highway
Explorers find 2 1/2-million-year-old sea snail fossils
https://mexiconewsdaily.com/news/playa-sinkhole-opens-up-a-large-cave-beneath-highway/
https://www.voanews.com/americas/mexican-highway-sinkhole-reveals-fossil-filled-cave
Yours,
Paul H.