EXHIBIT 107
Europasaurus holgeri
Europasaurus was a small-bodied sauropod from Jurassic Germany. Bone tissue confirms that some small individuals were fully grown, rather than juveniles of a giant species. [1]
TWO WAYS TO PICTURE THE PAST
Compare the evidence with the familiar movie image. The illustrations are not to a shared scale.
Reconstructed Europasaurus holgeri skull. This assembled display illustrates cranial form; the file does not identify a single fossil individual, its maturity or a complete original skull. [4]
Europasaurus skull · Nils Knötschke. CC BY-SA 2.5. Resized proportionally and converted to WebP; no anatomical edits. Same source license applies.
Skeletal mounts and drawings may restore missing parts; the caption identifies the displayed material.
Original cinematic interpretation of Europasaurus holgeri. Colors, soft tissues, scenery and missing anatomy are reconstructed artistic choices; this is not a directly observed individual or behavior. Lighting, coloration and scenery are artistic choices. This image does not document a fossil locality or behavior.
Original artwork · artistic interpretation.
Scientific view: source-informed reconstruction, credited paleoart or specimen-based imagery. Movie-style view: Original artistic interpretation. Reconstructions involve uncertainty.
MEET THE ANIMAL
Europasaurus was a small plant-eating sauropod, reconstructed walking on four legs. Its size makes it a useful reminder that not every long-necked dinosaur was a giant. The institutional account distinguishes its plant-eating body plan from evidence about its younger animals, letting anatomy and development contribute different parts of the portrait. [D5]
Studies of its skull describe adult features that resemble those of younger ancestral animals, including relatively large eye openings. Two different forms are recognized in the fossil material, but their cause is unresolved. They cannot confidently be labeled male and female. Similar-looking features can arise through growth and variation, so a striking difference needs evidence before it becomes a story about sex or courtship. [D4]
CT scans of young and adult braincases reveal the inner ears. Adult-like development in young animals suggests early mobility. Proposed nesting colonies remain interpretations rather than discoveries of assigned nests. These internal structures test ideas about early life without preserving a direct record of the animals walking or nesting. [D3]
PREHISTORIC ANIMAL DOSSIER
The animal, the evidence, and the questions still open.
Its island-dwarf interpretation rests on bone histology and regional geography. Later skull and inner-ear studies explore development and possible social behavior without establishing observed nesting or mating. [D4] [D3]
Profile scope: Genus profile centered on Europasaurus holgeri from Langenberg. Growth stages and multiple individuals are distinguished; the adult length reference is not a species-wide size range. [D1]
Source supported identifies a description documented by the cited source. Inferred marks a reconstruction or functional estimate. Debated marks competing interpretations. Not established means the sources reviewed for this dossier do not support a firm conclusion; it does not mean a behavior never occurred.
A size reference is an estimate, not a population range. Nesting evidence does not by itself establish courtship, mate choice, or lifelong pairing.
6.2 m; reconstructed adult individual
The original study scales a skeletal reconstruction to DFMMh/FV 415, whose femoral histology indicates completed growth. Smaller estimates include juveniles; they do not define the adult species range. [D1]
About 0.8 tonnes; published reference
The sauropod synthesis reports this estimate without naming an individual or method in that passage. It is not automatically the mass of DFMMh/FV 415. [D2]
Plants
The institutional research account identifies herbivory. No specific plant menu or directly preserved stomach contents are established in the reviewed material. [D5]
Jurassic islands around the Lower Saxony Basin
The fossils occur in middle Kimmeridgian marine carbonate beds at Langenberg, northern Germany. Regional geography and dwarfism support island habitation; marine burial does not mean an aquatic lifestyle. [D1]
Four-legged terrestrial walker
The institutional account reconstructs a quadrupedal sauropod. Inner-ear development offers additional evidence about juvenile mobility, rather than a measured walking speed. [D5]
Small adult body with juvenile-like skull features
Skull growth studies describe relatively large adult eye openings and other retained ancestral juvenile-like features. Two morphotypes are recognized, but their cause is unresolved. [D4]
Early mobility inferred; nesting unresolved
Large, adult-like inner ears in juveniles suggest precocial development. Colonial nesting is proposed by comparison and taphonomy, not demonstrated by a genus-assigned nest in this study. [D3]
Not established here
Different skull morphotypes may reflect sex, population differences or variation. Neither the skull study nor inferred hearing capabilities establishes mating calls, display rituals or mate choice. [D4] [D3]
Social cohesion plausible
The inner-ear study combines auditory estimates with an assemblage of multiple individuals to suggest group association. Permanent herds, seasonal aggregations and family structure cannot be distinguished confidently. [D3]
Sources and inspection notes for the claims in this profile.
THE STORY IN THE FOSSILS
Histology supplies the crucial distinction between a small adult and a young giant. DFMMh/FV 415 preserves an external fundamental system, indicating that growth had essentially finished. [1]
Researchers later scanned adult and juvenile braincases. Their inner ears suggest that young Europasaurus could become mobile early, while proposed nesting colonies remain an interpretation to test. [3]
The dossier identifies the scope of each reference estimate. A mount, an individual fossil and a species-wide adult range are different measurements. Comparison metrics remain unavailable where adult scope has not been established. Unknown does not mean zero.
Sources support the stated claims and scopes. Refer to the evidence notes for uncertainty.
KEEP EXPLORING
Brachiosaurus altithorax
Brachiosaurus altithorax was a giant sauropod from Late Jurassic North America. Its name-bearing skeleton is incomplete, and many familiar reconstructions borrow details from the separate African dinosaur Giraffatitan.
Diplodocus
Diplodocus was a long-necked plant eater from the Late Jurassic Morrison Formation. Its exceptionally long tail and distinctive double-beamed bones gave it both its silhouette and its name.
Apatosaurus
Apatosaurus was a plant-eating sauropod from the Late Jurassic of North America. Its discovery history includes a famous skeleton displayed with a Camarasaurus head before a narrow Apatosaurus skull was restored.
