Some colonies of this newly discovered coral stretch more than a meter in height, dominating their dark, high-pressure environment with their vibrant hue. Marine researchers collected the physical specimens using the advanced, remotely operated vehicle known as SuBastian during targeted deep-sea expeditions conducted in 2019 and 2023. These scientific voyages were carried out aboard the specialized research vessels Falkor and Falkor (too), both of which are owned and operated by the Schmidt Ocean Institute. The expeditions were specifically designed to explore and document the underwater seamounts located near Isla del Coco and stretching along Costa Rica’s expansive Pacific margin, a region increasingly recognized as a hotspot for deep-sea biodiversity and previously unknown marine life.
A Golden Coral Among Fields of Stars
During the deep-water explorations, scientists observed that the coral was particularly abundant on steep rocky outcrops where dense populations of brittle stars carpeted nearly every available square centimeter of the substrate. Against this shimmering, star-like backdrop of echinoderms, the bright yellow branches of the coral appeared to rise upward from the abyssal seafloor like glowing, arboreal structures surrounded by constellations of marine life.
This unusual and breathtaking scene proved instrumental in inspiring the formal scientific naming of the organism. The new genus has been designated as Laurinque, a term derived from "Laurinquë," which translates directly to "golden tree" in Quenya, the intricate Elvish language crafted by legendary author J.R.R. Tolkien for his acclaimed literary works, including The Lord of the Rings and The Silmarillion. Researchers deliberately chose this moniker because of the coral’s vivid, eye-catching yellow coloration and its distinctive, branching, tree-like morphology.
Furthermore, the species name selected for the organism is elenya, which translates to "stellar" or "of the stars" in the same Quenya tongue. This specific descriptor was chosen to honor and acknowledge the dense populations of brittle stars that persistently surround and intermingle with the coral colonies on the rocky seafloor. Together, the newly established genus and species names—Laurinque elenya—reflect what the participating researchers enthusiastically described as an almost mystical, Tolkien-esque landscape situated quietly on the deep ocean floor far beyond the reach of sunlight.
DNA Reveals a New Coral Family
While finding a visually striking organism is always a thrill for marine biologists, determining precisely where the coral fit on the complex evolutionary family tree of marine life proved to be a far more complicated and baffling endeavor than the team initially expected. In the early stages of analysis, scientists sequenced three standard genes that are commonly relied upon to identify, differentiate, and classify various groups of corals. However, instead of pointing toward a unified group or a known family, each of the three individual genes suggested a completely different and entirely unrelated family, presenting a puzzling genetic contradiction.
Because those preliminary genetic results were unusually inconsistent and defied standard taxonomic categorization, the research team realized they needed a much broader and more comprehensive approach. They turned to phylogenomics, an advanced methodology that allows scientists to compare hundreds of genes simultaneously rather than relying on just a few standard markers. This broader, high-resolution genetic analysis finally pierced through the confusion and clarified the coral’s true evolutionary position within the marine realm.
The comprehensive genetic data ultimately revealed that the species does not belong to any previously recognized coral family known to science. Instead, it represents a distinct evolutionary lineage that shares its closest relative lineage with Eunicellidae, yet possesses genetic signatures and anatomical features that differ significantly enough to fully justify the creation of an entirely new family, designated as Laurinqueidae. Alongside this major taxonomic elevation, the researchers also established the new genus Laurinque specifically to house this unique species.
Dr. Odalisca Breedy of the Universidad de Costa Rica, who served as the lead researcher on the scientific study, reflected on the step-by-step journey of the 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 stated. "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 research: "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 successfully led the research initiative alongside a diverse, international team of specialized collaborators. Financial and logistical backing for the expeditions was provided primarily by the Schmidt Ocean Institute, with additional support secured through a dedicated research grant from the National Geographic Society, highlighting the collaborative global commitment to understanding Earth’s least-known aquatic environments.
This remarkable discovery now joins a rapidly growing catalog of previously undocumented and unclassified species discovered during recent scientific surveys of Costa Rica’s submerged seamounts. The finding serves as a powerful reminder of just how much of the deep ocean remains entirely unexplored and poorly understood by humanity, even though marine environments cover roughly two-thirds of the total surface area of the Earth.
Coral gardens and deep-sea octocoral communities like the one discovered off Costa Rica are widely recognized by the scientific community as exceptionally vulnerable marine ecosystems. The intricate, three-dimensional physical structures that these corals build over long periods of time provide essential habitat, shelter, and breeding grounds for a vast array of other deep-sea organisms. This ecological role makes them crucial centers of biodiversity in remote environments that scientists are only just beginning to map, study, and comprehend.
