The Diversity of Ray-finned Fishes (Actinopterygii) in Plio-Pleistocene Java

A new study identifies at least eight species of ray-finned fishes (Actinopterygii) from Plio-Pleistocene deposits in Java, revealing the island's ancient aquatic ecosystems. These fossils, belonging to three orders—Siluriformes, Perciformes, and Cypriniformes—suggest that Java transitioned from a marine environment to a lowland river system with mangrove swamps and estuaries during this period. The research also highlights the distinct paleoenvironment of the ancient Bandung lake site, characterized by calm waters and riparian vegetation. The study employed comparative anatomical methods using modern specimens and fossil collections from multiple institutions in Indonesia.

Yudha, D. S., Prabowo, M. A., Suriyanto, R. A., & Barianto, D. H. (2020). The Diversity of Ray-finned Fishes (Actinopterygii) in Plio-Pleistocene Java. Journal of Tropical Biodiversity and Biotechnology, 5(2), 149. https://doi.org/10.22146/jtbb.43694