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Phenomenal, 9.8" Fossil Phytosaur Femur With Metal Stand - Texas
This is an extraordinarily well preserved, 9.8" long Phytosaur femur that was collected from the Upper Triassic-aged Tecovas Formation of Texas. Restoration is only found in the form of minor gap fill within the three repaired cracks. Bone preservation of this quality is quite uncommon!
There are a variety of phytosaurids that come from this location, making it difficult to conclusively identify isolated bones to a specific genus.
There are a variety of phytosaurids that come from this location, making it difficult to conclusively identify isolated bones to a specific genus.
About Phytosaurs
Phytosaurs were formidable, semi-aquatic reptiles that prowled Triassic rivers and swamps long before true crocodilians evolved. With long, tooth-studded snouts, armored hides, and powerful, paddle-like tails, they looked uncannily similar to modern crocodiles—but the resemblance was pure coincidence. Phytosaurs belonged to an entirely different branch of the reptile family tree, a striking example of parallel evolution in which unrelated animals independently develop the same body plan to master similar environments. Their lineage appears early in the Triassic, though their exact origins remain debated, and they thrived as dominant freshwater predators until vanishing during the Triassic–Jurassic extinction event roughly 200 million years ago.
Though phytosaurs shared a crocodile’s general silhouette, their heads told a different story. Some species evolved long, needle-toothed jaws for spearing fish, while others developed broader snouts lined with heavy crushing and slicing teeth suited for tackling larger prey at the water’s edge. The largest individuals stretched an astonishing 39 feet—giant ambush hunters capable of lurking just below the surface before erupting upward in a sudden burst of power. Unlike crocodilians, whose nostrils sit at the tip of the snout, phytosaurs carried their nostrils high on the skull near the eyes, allowing them to breathe while nearly the entire head remained submerged, a subtle adaptation that hints at just how refined these ancient predators were.
Phytosaurs were formidable, semi-aquatic reptiles that prowled Triassic rivers and swamps long before true crocodilians evolved. With long, tooth-studded snouts, armored hides, and powerful, paddle-like tails, they looked uncannily similar to modern crocodiles—but the resemblance was pure coincidence. Phytosaurs belonged to an entirely different branch of the reptile family tree, a striking example of parallel evolution in which unrelated animals independently develop the same body plan to master similar environments. Their lineage appears early in the Triassic, though their exact origins remain debated, and they thrived as dominant freshwater predators until vanishing during the Triassic–Jurassic extinction event roughly 200 million years ago.
Though phytosaurs shared a crocodile’s general silhouette, their heads told a different story. Some species evolved long, needle-toothed jaws for spearing fish, while others developed broader snouts lined with heavy crushing and slicing teeth suited for tackling larger prey at the water’s edge. The largest individuals stretched an astonishing 39 feet—giant ambush hunters capable of lurking just below the surface before erupting upward in a sudden burst of power. Unlike crocodilians, whose nostrils sit at the tip of the snout, phytosaurs carried their nostrils high on the skull near the eyes, allowing them to breathe while nearly the entire head remained submerged, a subtle adaptation that hints at just how refined these ancient predators were.
SPECIES
Unidentified Phytosaur
LOCATION
Private Ranch, Texas
FORMATION
Tecovas Formation
SIZE
9.8" Long, 2.1" wide (proximal end), 10.25" tall on stand
CATEGORY
SUB CATEGORY
ITEM
#214256
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