Rare Occurrence of Nautilus sp. Fossils from Batangas, Philippines

Abigael L. Castro1,2*, Allan Gil S. Fernando1, Alyssa M. Peleo-Alampay1,
Geleen Rica S. Javellana1, Dorothy Joyce D. Marquez1,3,
and Jaan Ruy Conrad P. Nogot1,2

1Nannoworks Laboratory, National Institute of Geological Sciences
College of Science, University of the Philippines
Diliman, Quezon City 1101 Philippines
2Geology and Paleontology Division, National Museum of the Philippines
Ermita, Manila 1000 Philippines
3College of Fisheries, President Ramon Magsaysay State University
Candelaria, Zambales 2212 Philippines

*Corresponding Author: This email address is being protected from spambots. You need JavaScript enabled to view it.



Two nautilid (Cephalopoda, Mollusca) fossils are discovered from an exposure of the late Miocene – early Pliocene Calatagan Formation in Talim Point, Lian, Batangas, southwestern Luzon. They were identified as Nautilus sp. because of the similarity in conch shape and sutures to those of extant species of Nautilus. The two Nautilus specimens were found in a fine- to medium-grained sandstone unit and observed to be associated with other macrofossils such as corals, gastropods, bivalves, brachiopods, and echinoids. The age of the Nautilus specimens was determined through the analysis of the planktonic foraminifera in the sandstone matrix. These specimens represent the oldest fossil record of Nautilus in the Philippines.




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