Loading species comparison matrix...
Direct Paleobiological Analysis
Carcharodontosaurusvs.Acrocanthosaurus
A side-by-side scientific comparison of physiological dimensions, biomechanics, temporal horizons, and anatomical specializations.
Comparing 2 of maximum 4 specimens
TheropodaCarcharodontosaurus
Carcharodontosaurus saharicus Depéret & Savornin, 1925
The 'shark-toothed lizard', a colossal North African apex predator rivaling Tyrannosaurus in length.
TheropodaAcrocanthosaurus
Acrocanthosaurus atokensis Stovall & Langston, 1950
A high-spined North American apex predator famous for hunting sauropods across Early Cretaceous river valleys.
Comparative Paleobiological & Anatomical Matrix
| Feature / Trait | Carcharodontosaurus | Acrocanthosaurus |
|---|---|---|
Total Length | 11.5–13 m (37.7–42.7 ft) Estimated maximum | 10–11.5 m (32.8–37.7 ft) Estimated maximum |
Hip Height | 3.6–4.2 m (11.8–13.8 ft) Model estimate | 3.4–4 m (11.2–13.1 ft) Model estimate |
Body Mass | 6.0–9.0 metric tons (13,228–19,842 lbs) Volumetric/allometric model | 4.5–6.5 metric tons (9,921–14,330 lbs) Volumetric/allometric model |
Epoch Horizon | Cretaceous Period 99–94 Ma (million years ago) | Cretaceous Period 113–110 Ma (million years ago) |
Diet & Trophic Role | Carnivore Carnivorous; sliced deep wounds into large sauropods (Paralititan) and hadrosaurids (Ouranosaurus). | Carnivore Hunted sauropods like Sauroposeidon and ornithopods like Tenontosaurus. |
Taxonomic Clade | Theropoda(Suborder) | Theropoda(Suborder) |
Fossil Localities | Kem Kem Beds, Algeria & Morocco Named: 1924 | Antlers Formation, Atoka County, Oklahoma, United States Named: 1940 |
Locomotion & Behavior | Dominant apex predator of Cenomanian North Africa, armed with serrated, blade-like teeth designed to slice through flesh. It shared river delta and mangrove wetlands with the specialized semi-aquatic theropod [Spinosaurus](/dinosaurs/spinosaurus), with niche partitioning reducing direct trophic competition between the two colossal carnivores. | Apex pursuit predator that shared the Early Cretaceous coastal plain ecosystem with contemporary dromaeosaurids like [Deinonychus](/dinosaurs/deinonychus) and large ornithopods like [Tenontosaurus](/dinosaurs/tenontosaurus). Trackway assemblages and body fossils indicate it operated as the dominant carnivore across these ancient river deltas. |
Holotype & Fossils | Pristine complete 1.6-meter skull (UCRC PV12) and associated postcrania from Morocco. | Spectacular complete specimen 'Fran' (NCSM 14345) mounted at the North Carolina Museum of Natural Sciences. |
Paleontological Uncertainty Advisory: Anatomical dimensions, body masses, and metabolic rates are scientific estimates derived from volumetric scaling, laser scanning, and biomechanical limb bone allometry. Missing traits indicate non-preserved fossil elements rather than anatomical absence.