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EXCEPTIONALLY RARE Dapedium Fossil Fish – Museum Grade Posidonia Shale Specimen – Holzmaden, Germany – Jurassic Toarcian
EXCEPTIONALLY RARE MUSEUM-GRADE DAPEDIUM FOSSIL FISH
An extraordinary and museum-quality specimen of the extinct ray-finned fish Dapedium, this fossil originates from the iconic Posidonia Shale (Posidonienschiefer) of Holzmaden, Swabian Jura, Stuttgart, Germany. Dating back to the Toarcian Stage of the Lower Jurassic (Upper Lias) approximately 182 million years ago, this piece exemplifies the remarkable preservation that makes Holzmaden fossils world-famous.
Fossil Details:
Species: Dapedium sp.
Type: Fossilized ray-finned fish
Age: Lower Jurassic, Toarcian Stage (Upper Lias)
Formation: Posidonia Shale (Posidonienschiefer)
Location: Holzmaden, Swabian Jura, Stuttgart, Germany
Depositional Environment: Anoxic marine basin with fine-grained sediment, allowing exceptional skeletal and scale preservation
Morphological Features: Classic deep, diamond-shaped body with ganoid scales; paddle-like fins; articulated skeletal structure typical of Dapedium
Notable: Exceptional detail of scales and fin rays, highlighting the conservation lagerstätte quality of Holzmaden specimens
Scale Reference: Scale rule in photos with 1cm squares/cube for accurate sizing
Geological Context: The Posidonia Shale of Holzmaden is one of the most significant Jurassic fossil sites globally. The unique anoxic conditions of the marine basin during the Early Jurassic allowed unparalleled preservation of marine life. Dapedium is a key taxon from this deposit, representing an important part of Early Jurassic marine ecosystems.
Additional Information:
All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity.
Supplied with full mounting plates for optional wall hanging display.
The fossil pictured is the exact specimen you will receive.
Taxonomic Classification:
Order: Semionotiformes
Superfamily: Semionotoidea
Family: Dapediidae
Genus: Dapedium
This is a rare opportunity to obtain a museum-grade Dapedium fossil fish from one of the most famous fossil deposits in the world, perfect for collectors, educational displays, or as a centerpiece in a natural history collection.
EXCEPTIONALLY RARE Dapedium Fossil Fish – Museum Grade Posidonia Shale Specimen – Holzmaden, Germany – Jurassic Toarcian
EXCEPTIONALLY RARE MUSEUM-GRADE DAPEDIUM FOSSIL FISH
An outstanding example of the extinct ray-finned fish Dapedium, this museum-grade fossil is from the world-famous Posidonia Shale (Posidonienschiefer) of Holzmaden, Swabian Jura, Stuttgart, Germany. Dated to the Toarcian Stage of the Lower Jurassic (Upper Lias), approximately 182 million years ago, this specimen is a prime example of the exceptional preservation for which this locality is renowned.
Fossil Details:
Species: Dapedium sp.
Type: Fossilized ray-finned fish
Age: Lower Jurassic, Toarcian Stage (Upper Lias)
Formation: Posidonia Shale (Posidonienschiefer)
Location: Holzmaden, Swabian Jura, Stuttgart, Germany
Depositional Environment: Anoxic marine basin responsible for exceptional preservation of skeletal details and in some cases soft tissues
Morphological Features: Distinct diamond-shaped body, ganoid scales, and paddle-like fins typical of Dapedium; excellent skeletal articulation
Notable: Fine detail preservation of scales and fin rays, characteristic of Holzmaden conservation lagerstätten
Scale: Scale rule visible in photos; 1cm squares/cube for precise sizing
Geological Context: The Posidonia Shale of Holzmaden is among the most important fossil sites globally, celebrated for its conservation of marine life during the Early Jurassic. The fine-grained, oxygen-depleted sedimentary environment enabled remarkable detail retention, making specimens such as Dapedium highly prized among collectors and institutions.
Additional Information:
All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity.
Full mounting plates included for optional wall hanging.
The photo shows the exact specimen you will receive; this is a carefully chosen individual piece.
Taxonomic Classification:
Order: Semionotiformes
Superfamily: Semionotoidea
Family: Dapediidae
Genus: Dapedium
This is a rare opportunity to acquire a beautifully preserved Dapedium fossil fish from one of the world's most renowned fossil beds. A perfect addition to any serious fossil collection or natural history display.
The Dapedium (1822)
Phylum : Chordata Class : Osteichthyes Order : Semionotiformes Family : Dapediidae Genus : Dapedium Species : D. caelatum, D. noricum, D. pholidotum, D. politum, D. punctatum
Late Triassic/Early Jurassic (200 - 150 Ma)
40 cm long (size)
Lyme Regis, England (map)
The various species of Dapedium ranged from 9 to 40 centimetres long, and all had an oval to near-circular body. The skin was covered with thick, rhomboid, ganoid (enamel-like) scales. The smallest species so far found is D. noricum.
The skull was armoured with bony dermal plates, which were especially plentiful in the orbital region. These bones bore irregular tubercles. The small pectoral and pelvic fins, along with the extended dorsal and anal fins formed a functional unit with the tail. The tail was short and stout, providing the power for a sudden change in direction while the fish was swimming.
The upper jaw of Dapedium was moveable and could protrude from the mouth, enabling a wider gape to capture larger prey.
The strong and pointed dentition suggests that Dapedium was durophagous, feeding on hard-shelled invertebrates, like mussels and sea urchins.