EXHIBIT 43
Borealopelta markmitchelli
Preserved skin, armour and a fern-rich last meal.
TWO WAYS TO PICTURE THE PAST
Compare the evidence with the familiar movie image. The illustrations are not to a shared scale.
The artist identifies this reconstruction as Borealopelta. It is used as a genus-level illustration alongside the Borealopelta markmitchelli facts, rather than a species-identified specimen restoration. Fossil-informed anatomy: Low, broad nodosaur with preserved scaly skin and keratin-covered armour; reddish-brown countershading remains an inference. File identifies the genus only. Colour is fossil-informed but the complete living body and missing posterior regions remain reconstructed. [1] [2]
Borealopelta TD.png — TotalDino. CC BY 4.0. Remote source artwork displayed without additional cropping; Wikimedia supplies any display-size derivative.
Scientific picture served by Wikimedia · internet connection required.
Cinematic broad armoured nodosaur inspired by the three-dimensional fossil; subdued reddish-brown back and lighter underside labelled reconstructed, with skin and armour emphasized. Dramatic lighting, surface detail and scenery are artistic choices. This is an original cinema-inspired picture, rather than a frame from a film or a documented fossil locality.
Original artwork · artistic interpretation.
Scientific view: credited paleoart interpreting fossil evidence, served online by Wikimedia. Movie-style view: Original artistic interpretation. Colors, soft tissues and settings involve reconstruction.
MEET THE ANIMAL
Borealopelta markmitchelli was an armored plant eater from Early Cretaceous Alberta. One unusually preserved individual provides an exceptional view of its skin, bones and final meal. Its name means northern shield and honors the technician who spent years uncovering it. The marine rock around the specimen records burial after the animal was washed out to sea, rather than an ocean-dwelling lifestyle. [S1]
The stomach contains chewed fern leaves, along with stems and twigs. Researchers compared these fragments with plants known from the region and inferred that this animal selected particular ferns rather than eating all available vegetation equally. It swallowed stones interpreted as digestive aids. Such detailed evidence describes this individual’s last meal; it should not become an exclusive menu for the whole species. [S1]
Burned plant fragments suggest that the dinosaur fed in an area recovering from a fire, where fresh ferns could grow. Plant evidence also helped narrow the season of its death and burial. These clues connect feeding with an ancient landscape, while leaving a longer lifetime of movements and interactions uncertain. [S1]
PREHISTORIC ANIMAL DOSSIER
The animal, the evidence, and the questions still open.
Borealopelta preserves three-dimensional armour, scaly skin and a fern-rich final meal. Chemical evidence has been interpreted as reddish-brown countershading, while its marine burial records transport after death.
Profile scope: Species: Borealopelta markmitchelli; most evidence comes from one exceptionally preserved individual.
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.
About 5.5 m (specimen reconstruction)
Bristol describes an 18-foot-long animal, approximately 5.5 m. The museum notes preservation from snout to hips; total length is a reconstruction, not a complete fossil-body measurement. [D1] [D3]
About 1,300 kg (specimen estimate)
Bristol reports a 1.3-tonne reconstruction. The summary does not establish an adult species range or specify this individual's maturity. [D1]
Ferns dominate the preserved final meal
Fern leaf fragments and sporangia dominate the stomach contents, with small cycad and conifer contributions. This is one meal, not a lifetime or species-wide diet. [D2]
Terrestrial vegetation; burned patch inferred
Charcoal with ferns suggests feeding in a recently burned area. Burial at sea does not establish a marine lifestyle. [D2] [D1]
Four-legged terrestrial reconstruction
Quadrupedal posture follows nodosaur skeletal reconstruction. The reviewed evidence does not establish travel speed or swimming behavior. [D1]
Three-dimensional armour and scaly skin
Skin and armour retain exceptional surface detail. Reddish-brown colour and a lighter underside are chemical interpretations, rather than directly preserved living colours. [D3] [D1]
Not established here
The reviewed sources do not establish nest structure, incubation or parental care for Borealopelta markmitchelli.
Not established here
The reviewed sources do not establish a courtship sequence or mating system for Borealopelta markmitchelli.
Not established here
The reviewed sources do not establish usual group size or lasting social organization for Borealopelta markmitchelli.
Sources and inspection notes for the claims in this profile.
THE STORY IN THE FOSSILS
Found at an Alberta mine in 2011, Borealopelta preserves a three-dimensional armoured body and scaly skin. Chemical analysis led researchers to infer reddish-brown pigmentation and a lighter underside. They interpreted this countershading as camouflage, suggesting that armour alone did not remove pressure from predators. [1]
Microscope slides of the stomach contents reveal fern leaf fragments and reproductive structures, with smaller contributions from other plants. Charcoal occurs alongside the meal. Researchers interpreted this combination as feeding in a recently burned landscape, but it records this individual’s final food rather than every meal the species ate. [2]
We have not established a comparable adult total-length estimate for this taxon in this draft. Specimen measurements in the text describe those individuals. The cited dates are approximately 110 million years ago. Approximate reference age, represented by equal endpoints; not a demonstrated full temporal range. Unknown does not mean zero.
Sources and evidence notes for this exhibit.
KEEP EXPLORING
Psittacosaurus
A parrotlike beak, cheek projections and bristles on the tail.
Euoplocephalus
Neck armour helps separate this ankylosaur from former look-alike referrals.
