Deep beneath the Pacific Ocean, where sunlight barely penetrates, scientists have discovered something extraordinary. Rising from rocky underwater mountains near Costa Rica, a brilliant yellow coral resembles a miniature golden tree surrounded by hundreds of star-shaped marine creatures.

Its unusual appearance immediately attracted attention, but the greatest surprise emerged in the laboratory. Genetic analysis revealed that the organism was so different from previously classified corals that researchers had to establish an entirely new biological family.

The discovery, described in the scientific journal ZooKeys in October 2026, offers another reminder of how little scientists know about life in the deep ocean.

An Unexpected Underwater Discovery

The newly identified species, Laurinque elenya, inhabits seamounts along Costa Rica's Pacific coast, including areas near Isla del Coco.

Researchers encountered colonies between 360 and 529 metres below the surface. Some reached heights exceeding one metre, with delicate yellow branches spreading above the rocky seabed.

The surrounding landscape was equally remarkable. Numerous brittle stars, marine invertebrates related to starfish, covered the rocks around the coral colonies. Together, these organisms created an unusual underwater scene that inspired the species' scientific name.

A Name Inspired By Fantasy

The researchers turned to the fictional Elvish language developed by author J.R.R. Tolkien when naming their discovery. The genus name Laurinque comes from Laurinquë, meaning golden tree in Quenya. It refers to the coral's striking colour and branching appearance.

The species name elenya, meaning stellar or associated with stars, honours the brittle stars found throughout its habitat. Although the name has literary origins, the scientific classification reflects extensive anatomical and genetic investigations.

Why Scientists Were Puzzled

Identifying the coral's closest relatives proved unexpectedly complicated. Researchers initially examined three genes commonly used to investigate evolutionary relationships among corals. Surprisingly, each suggested a connection to a different family. The contradictory results indicated that conventional genetic comparisons were insufficient. The team therefore employed phylogenomics, an advanced approach that examines hundreds of genes simultaneously.

This broader analysis revealed a previously unrecognised evolutionary lineage. Although the species was most closely related to members of the Eunicellidae family, its genetic and anatomical characteristics were sufficiently distinctive to justify a separate family, Laurinqueidae.

What The Lead Researcher Revealed

Dr Odalisca Breedy, from the University of Costa Rica, first encountered the remarkable coral community during a research expedition in 2019. She explained that the underwater landscape immediately impressed her, although she initially suspected the coral belonged to an established taxonomic group.

Closer examination revealed characteristics that did not match known species. Additional specimens collected in 2023 allowed Breedy and her colleagues to conduct more comprehensive molecular analyses, ultimately confirming the organism's unusual evolutionary position.

The expeditions used the remotely operated vehicle SuBastian, which enabled scientists to collect samples and examine habitats far beyond ordinary diving depths.

Why Coral Gardens Matter

Deep-sea coral communities provide important habitats for numerous marine organisms. Their intricate branches create sheltered spaces and additional surfaces where other species can live, feed and reproduce.

These environments can support considerable biodiversity despite existing hundreds of metres beneath the ocean's surface. However, deep-water coral gardens are vulnerable to disturbances, particularly activities that physically damage the seabed. Documenting previously unknown species can help scientists better understand which ecosystems require protection.

What Remains To Be Discovered?

The identification of an entirely new coral family demonstrates that even fundamental branches of marine evolutionary history remain undocumented. Costa Rica's seamounts are proving especially valuable for biodiversity research, with underwater exploration continuing to reveal unfamiliar organisms. Further investigations may uncover additional species related to Laurinque elenya and clarify how this unusual lineage evolved.

For now, the golden coral stands as a remarkable example of the discoveries still awaiting scientists in Earth's least explored environments.