The vibrant organism, characterized by a bright yellow color and a branching, tree-like physical structure, was documented living at depths ranging from 360 to 529 meters below the surface of the Pacific Ocean. The groundbreaking findings were recently detailed in the open-access scientific publication ZooKeys, shedding new light on the vast, largely unexplored biodiversity hidden beneath the waves.
Some colonies of this newly identified coral grow to impressive heights, stretching more than a meter tall from the rocky seafloor. Researchers were able to spot, document, and collect physical specimens of the coral using the advanced remotely operated vehicle known as SuBastian. The deep-sea operations took place during a series of scientific expeditions conducted in 2019 and 2023. These missions were carried out aboard the specialized research vessels Falkor and Falkor (too), both of which are owned and operated by the esteemed Schmidt Ocean Institute. The targeted expeditions focused heavily on exploring deep-sea seamounts situated near Isla del Coco and stretching along Costa Rica’s active Pacific margin, a region increasingly recognized by marine biologists as a hotspot for unique and undocumented ecosystems.
A Golden Coral Among Fields of Stars
During the deep-water explorations, scientists noticed that the newly discovered coral was especially abundant on rugged rocky outcrops where dense colonies of brittle stars blanketed nearly every available surface. Against this shimmering, living backdrop of countless echinoderms, the bright yellow branches of the coral appeared to rise from the darkened seafloor like glowing trees surrounded by distant stars.
This visually arresting and unusual scene deeply inspired the researchers when the time came to formally name their discovery. The newly established genus has been designated as Laurinque. This scientific name is derived from "Laurinquë," which translates directly to "golden tree" in Quenya, the sophisticated Elvish language constructed by renowned author J.R.R. Tolkien for his legendary mythos, including The Lord of the Rings and The Silmarillion. The research team selected this specific linguistic root because of the coral’s vivid, eye-catching yellow pigmentation and its distinctively arboreal, branching morphology.
Furthermore, the species name chosen for the organism is elenya, which means "stellar" or "of the stars" in the same Quenya tongue. This designation serves as a direct nod to the dense, shimmering populations of brittle stars that persistently surround and carpet the base and immediate environment of the coral colonies. Together, the carefully chosen genus and species names pay homage to what the researchers vividly described as an almost mystical, Tolkien-esque landscape thriving quietly on the deep ocean floor far beyond the reach of sunlight.
DNA Reveals a New Coral Family
While discovering a visually striking organism is always a major milestone in marine biology, determining precisely where the coral fit on the complex evolutionary family tree proved to be a far more complicated scientific puzzle than the researchers initially anticipated. When the team first brought the specimens back for laboratory analysis, scientists initially sequenced three standard genes that are commonly utilized across the scientific community to identify and classify various types of corals.
However, instead of pointing cleanly toward a single, unified group or known family, each of the three sequenced genes suggested a completely different and entirely unrelated family of corals.
Because those initial genetic results were unusually inconsistent and contradictory, the researchers realized they needed a much 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 much broader and deeper genetic analysis finally pierced through the confusion and successfully clarified the coral’s true evolutionary position.
The comprehensive genetic data revealed conclusively that the species does not belong to any previously recognized coral family known to science. Instead, it represents a completely distinct evolutionary lineage. While scientists found that it is most closely related to the family Eunicellidae, its unique genetic makeup and anatomical characteristics differ significantly enough to fully justify the formal creation of an entirely new biological family, which has been named Laurinqueidae. In tandem with this major taxonomic update, the researchers also established the brand-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 scientific study, reflected on the multi-year 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 recalled. "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, noting the collaborative effort required to finalize the classification: "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 a dedicated international team of scientific collaborators. The complex deep-sea expeditions were made possible through the crucial logistical and operational support of the Schmidt Ocean Institute, supplemented significantly by a dedicated research grant from the National Geographic Society.
This newly identified golden coral joins a steadily growing catalog of previously undocumented species that have been discovered during recent scientific surveys of Costa Rica’s rugged underwater seamounts. The ongoing discoveries underscore a humbling reality for the scientific community: despite centuries of marine exploration, the vast majority of the deep ocean remains poorly explored and scientifically mapped, even though marine environments cover roughly two-thirds of the Earth’s total surface.
Complex underwater habitats like the coral gardens discovered off the coast of Costa Rica are widely recognized by marine scientists as vital, yet highly vulnerable, marine ecosystems. The intricate, three-dimensional physical structures created by these corals provide essential shelter, feeding grounds, and breeding habitats for a wide array of other deep-sea organisms. Because they support such a high concentration of marine life, these deep-water gardens function as crucial centers of biodiversity in environments that scientists are only just beginning to properly understand and protect.
