A Late Pleistocene transgression in Thailand: A marine molluscan fauna from Ban Praksa (Samut Prakan Province)

A Late Pleistocene molluscan fauna sampled at Ban Praksa, near the Chao Phraya River mouth (Lower Central Plain of Bangkok, Thailand) is herein analyzed and paleoecologically characterized, revealing a shallow infralittoral, coarse/hard-bottomed environment. The comparison of the Ban Praksa association with several coeval ones recovered from Phra Pradaeng Formation seems to be evidence of a 10,000 year hiatus between two separate groups of marine faunas, possibly belonging to different interstadial transgressive peaks that occurred during the long-term sea-level regression following the Last Interglacial.

► Ban Praksa fossils date 35,460 ± 1300 CYBP and belong to Phra Pradaeng Formation. ► Ban Praksa molluscs thrived in a shallow infralittoral, hard-bottomed environment. ► Ban Praksa fauna can compare with several other Late Pleistocene ones in Thailand. ► Late Pleistocene Thai faunas belong to different interstadial transgression peaks.