Marine scientists surveying uncharted underwater mountains off the coast of Costa Rica have made a remarkable discovery, identifying a stunning new species of deep-sea coral that is so fundamentally distinct in both its physical characteristics and genetic makeup that researchers were forced to establish an entirely new scientific family to properly classify it.

The striking organism, characterized by a bright yellow color and a branching, tree-like physical structure, was found thriving at depths ranging between 360 and 529 meters below the surface of the Pacific Ocean. The groundbreaking findings were officially published in the open-access scientific journal ZooKeys, marking a significant milestone in marine taxonomy and deep-sea exploration.

Some colonies of this newly identified coral grow to heights exceeding one meter, forming expansive underwater gardens along the rugged slopes of the Pacific margin. Researchers collected the vital specimens using SuBastian, an advanced remotely operated vehicle (ROV). The discoveries were made possible during scientific expeditions conducted in 2019 and 2023 aboard the prominent research vessels Falkor and Falkor (too), which are owned and operated by the Schmidt Ocean Institute. These exploratory missions specifically targeted seamounts located near Isla del Coco and extending along Costa Rica’s dynamic Pacific margin.

A Golden Coral Among Fields of Stars

The newly discovered coral was found to be especially abundant on rocky underwater outcrops where dense colonies of brittle stars blanketed nearly every available surface. Against this shimmering, moving backdrop of echinoderms, the vibrant yellow branches of the coral appeared to rise from the dark seafloor like glowing trees surrounded by countless stars.

This unusual and visually striking scene ultimately helped inspire the scientific nomenclature for the organism. The new genus has been designated as Laurinque, a name derived from "Laurinquë," which translates to "golden tree" in Quenya, the sophisticated Elvish language constructed by renowned author J.R.R. Tolkien for his legendary works, including The Lord of the Rings and The Silmarillion. Researchers deliberately selected this linguistic tribute because of the coral’s vivid, luminous yellow pigmentation and its distinctive, arboreal branching shape.

Complementing the genus, the species name elenya was chosen, which translates to "stellar" or "of the stars" in the same Elvish tongue. This specific descriptor directly honors the dense populations of brittle stars that persistently surround and intermingle with the coral colonies on the deep-sea floor. Together, the chosen genus and species names pay homage to what the research team described as an almost mystical, literary landscape existing deep beneath the ocean’s surface.

DNA Reveals a New Coral Family

While the visual discovery was breathtaking, determining exactly where this unique organism fit on the complex evolutionary family tree proved to be a far more complicated challenge than the scientific team initially anticipated.

In the early stages of analysis, scientists sequenced three standard genes that are commonly relied upon by marine biologists to identify and classify corals. However, instead of pointing toward a unified group or a known family, each of the three genes suggested a completely different and entirely unrelated family of corals, creating a taxonomic puzzle.

Because those preliminary genetic results were unusually inconsistent and contradictory, the researchers expanded their approach by employing phylogenomics—a comprehensive analytical method that allows scientists to compare hundreds of genes simultaneously. This much broader and deeper genetic analysis finally pierced through the confusion, clarifying the true evolutionary position of the organism.

The comprehensive genetic data conclusively demonstrated that the species does not belong to any previously recognized coral family documented by science. Instead, it represents a distinct evolutionary lineage. While it shows a distant relation to the Eunicellidae family, both its genetic blueprint and its underlying anatomy differ enough to scientifically justify the creation of an entirely new family, which has been named Laurinqueidae. Alongside this major classification, researchers established the new genus Laurinque specifically to house this singular species.

Dr. Odalisca Breedy of the Universidad de Costa Rica, who served as the lead researcher on the study, reflected on the arduous yet rewarding journey of discovery.

"I saw the octocoral garden for the first time in 2019 and I was impressed by the beauty of the landscape, which inspired, later the elvish name of the taxa," Dr. Breedy explained. "I thought the species could belong to a known family and genera, but after the preliminar morphological analysis I realised that it was something very different that I could not match with the known taxa."

Dr. Breedy continued, detailing the subsequent phases of the investigation, "In 2023 we collected more samples and thanks to the exhaustive molecular analyses made by my colleagues, Cathy McFadden, Catalina Murillo and Andrea Quattrini, we were able to determine the taxonomic placement of the stunning species, in one of the most enigmatic sites."

Costa Rica’s Deep Sea Still Holds Surprises

Dr. Breedy spearheaded the research alongside an international, multidisciplinary team of collaborators. The overarching expeditions were supported by the Schmidt Ocean Institute, with additional funding and backing provided through a dedicated research grant from the National Geographic Society.

This latest discovery proudly joins a rapidly growing number of previously undocumented species that have been unearthed on Costa Rica’s remote and biologically rich seamounts. Furthermore, the finding serves as a stark reminder of just how much of the deep ocean remains entirely unmapped, poorly understood, and chronically underexplored, despite the fact that deep-water marine environments cover roughly two-thirds of the total surface of the Earth.

Coral gardens and deep-sea ecosystems like the one discovered off Costa Rica are widely recognized by the global scientific community as vulnerable marine ecosystems. The complex, intricate three-dimensional structures built by these organisms provide essential physical habitat, shelter, and breeding grounds for a wide variety of other forms of deep-sea life. This vital ecological role establishes them as critical centers of biodiversity in environments that scientists are only just beginning to comprehend and protect.