Rare Geryon hakelinsis Fossil Fish Shrimp Crab Cenomanian Upper Cretaceous Lebanon | Genuine Multi-Fossil Specimen from Hjoula Quarry

Description

Rare Geryon hakelinsis Fossil Fish, Shrimp, and Crab – Cenomanian, Upper Cretaceous, Hjoula Quarry, Lebanon

This rare multi-fossil specimen features an exceptionally preserved Geryon hakelinsis fossil crab alongside fossilised fish and shrimp from the world-famous Hjoula Quarry, located in the Keserwan–Jbeil Governorate of Lebanon. Dating to the Cenomanian Stage of the Upper Cretaceous Period (approximately 98–95 million years ago), this remarkable piece captures an entire marine ecosystem preserved in stone, making it a scientifically valuable and highly collectible fossil.

Each fossil is 100% natural and genuine as found, professionally prepared only to reveal its natural features without artificial enhancement. The photo shows the actual specimen you will receive, with a 1cm scale cube for accurate size reference. Every fossil comes with a Certificate of Authenticity, verifying its provenance, age, and geological context.

Geological and Stratigraphic Context

This specimen originates from the Hjoula Fish Beds, part of the Cenomanian-aged Upper Cretaceous limestone sequence in Lebanon. These world-renowned deposits were formed in a quiet, low-oxygen marine environment along the margins of the ancient Tethys Ocean. Over millions of years, fine carbonate mud settled undisturbed in these shallow basins, entombing fish, crustaceans, and other marine life with exceptional fidelity.

The anoxic conditions of these seabeds prevented decay and protected soft tissues from scavengers, producing fossils of Lagerstätten quality—preserved in fine micritic limestone with astonishing anatomical precision. These layers are globally recognised for yielding fish, crabs, shrimps, ammonites, plants, and rare co-occurring assemblages that provide a vivid record of Cretaceous marine biodiversity.

Today, the Hjoula and Hakel quarries represent some of the most significant fossil localities in the world, studied extensively by paleontologists for their unparalleled preservation and taxonomic diversity.

Fossil Type and Scientific Classification

• Fossil Types: Crab (Geryon hakelinsis), Fish, and Shrimp
• Phylum: Arthropoda (crab and shrimp); Chordata (fish)
• Class (Crab): Malacostraca
• Order (Crab): Decapoda
• Family (Crab): Geryonidae
• Geological Stage: Cenomanian (~98–95 million years ago)
• Period: Upper Cretaceous
• Formation: Hjoula Limestone Formation (“The Fish Beds”)
• Locality: Hjoula Quarry, Keserwan–Jbeil Governorate, Lebanon

The fossil crab Geryon hakelinsis belongs to the family Geryonidae, a lineage that includes deep-sea crabs still found today. Its presence in the Hjoula deposits provides important evolutionary insight into the early diversification of decapod crustaceans during the Late Cretaceous. The accompanying fish and shrimp fossils add further ecological depth to the specimen, representing a thriving benthic and pelagic community within the same depositional environment.

Morphological Features and Preservation

This multi-fossil specimen displays exquisite three-dimensional preservation, characteristic of the fine-grained limestone matrix of the Hjoula Formation. The Geryon hakelinsis crab shows a well-defined carapace, preserved claws (chelae), and, in many examples, fine impressions of the legs and abdomen. Its symmetrical, rounded body and articulated limbs reflect a near-pristine state of preservation, a rare occurrence given the fragility of crustacean exoskeletons.

The fish fossil exhibits clear vertebral alignment, delicate fin rays, and an unmistakable outline of the body and tail, suggesting rapid burial and minimal disturbance after death. The shrimp fossil adds additional visual and scientific interest, with preserved appendages and antennae visible under magnification. Together, these fossils capture a snapshot of ancient marine life interacting within the same sedimentary layer.

The contrasting tones of dark carbonised fossil remains against the cream-coloured limestone create a striking visual effect, enhancing both the natural beauty and educational value of this piece. The quality of preservation seen here is typical only of Lebanon’s finest Cenomanian fossil sites.

Geological and Paleoenvironmental Significance

During the Cenomanian Stage, Lebanon formed part of a shallow tropical seaway on the northern edge of the Tethys Ocean, a warm marine environment teeming with life. The Hjoula and Hakel localities record this ecosystem in extraordinary detail, preserving delicate creatures that rarely fossilise elsewhere.

The Geryon hakelinsis crab, a species first described from the Lebanese deposits, is among the earliest known representatives of its genus. Its coexistence with fossil fish and shrimp provides valuable paleoecological evidence for trophic interactions and environmental structure within Cretaceous marine ecosystems. The fine-grained limestone matrix and absence of bioturbation (burrowing disturbance) indicate that the seafloor was anoxic—perfect for fossil preservation but inhospitable for most benthic life.

These conditions produced fossils of museum-grade quality, studied in institutions worldwide to understand crustacean evolution and the paleobiology of the Cretaceous seas.

Collector and Display Significance

This Rare Geryon hakelinsis Fossil Fish + Shrimp + Crab from Hjoula Quarry is a scientifically important and visually stunning specimen. The natural association of multiple species within one slab makes it a standout collector’s item and an educational example of marine biodiversity from nearly 100 million years ago.

Such multi-fossil assemblages are extremely rare, particularly those featuring crustaceans preserved in their natural orientation and association. The specimen’s elegant composition, natural contrast, and authenticity make it suitable for museum exhibits, private collections, or natural history displays.

All our fossils are 100% genuine, ethically sourced, and supplied with a Certificate of Authenticity confirming their provenance and geological details. This specimen embodies the incredible fossil heritage of Cenomanian Lebanon, where ancient marine life has been exquisitely preserved in limestone since the days of the Tethys Ocean—a remarkable relic of Earth’s deep history.