Marine researchers have cataloged 149 previously unknown species and recovered more than 1,000 fossilized shark teeth during a survey in the Indian Ocean near Indonesia, according to a report by Indonesian news outlet detikcom.
The discoveries were made during an expedition in waters close to the Indonesian archipelago, as detailed in the detikcom article published on Saturday, September 5, 2026. The findings highlight the region’s rich and largely unexplored marine biodiversity, the report indicates.
The shark teeth, described as fossils, add a significant paleontological component to the haul. While the report does not specify which shark species the teeth belonged to or their estimated age, the sheer volume suggests the area has long served as a habitat for diverse shark populations, per detikcom.
The 149 new species were not itemized in the available reporting, but the total underscores the scientific value of deep-sea and reef surveys in the eastern Indian Ocean. Indonesia sits at the heart of the Coral Triangle, a zone recognized for having some of the highest marine species counts on Earth, which aligns with the scale of this discovery.
The expedition’s results were also picked up by other outlets, including achmadnurhidayat.id and pdiperjuanganbali.id, which similarly reported on the hundreds of new species and thousands of fossilized teeth. The consistency across these reports points to a formal announcement or published study, though detikcom remains the primary source for this summary.
For scientists, the next step will likely involve formally describing and naming the new species, a process that can take years. The fossilized shark teeth may also prompt further investigation into the region’s ancient marine ecosystems.
As detikcom notes, the find reinforces the need for continued research and conservation in these waters, where new discoveries appear to be far from finished.
