Uploaded May 2026 | Updated September 2026, 2 weeks ago

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Spinosaurids were insane, including some of the biggest and most bizarre theropods in the fossil record. They’ve earned a reputation as some of the strangest theropod dinosaurs out there, bucking the trend in more ways than one. While other large theropods focused on taking down large game on land, spinosaurids specialized in aquatic prey, keeping their arms and claws long and developing crocodile-like features that helped them rule the shorelines and riversides of the Cretaceous Period. From gigantic shorebird-style waders like the infamous Spinosaurus, which was one of the biggest carnivorous dinosaurs of all time, to long-legged generalist hunters like Suchomimus, spinosaurids branched into multiple niches during their eighty-million-year reign and conquered continents. Let’s cover the size, phylogeny, and physiology of the Spinosauridae: one of the most insanely awesome animal groups in Earth’s history.

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