Tanystrosuchus Facts
| Diet | Carnivore |
| Height | Unknown - insufficient fossil ev |
| Length | Unknown - insufficient fossil ev |
| Environment | Land |
| Era | Triassic |
| Period | Triassic |
| Type | Theropod |
| Location | Germany |

| Diet | Carnivore |
| Height | Unknown - insufficient fossil ev |
| Length | Unknown - insufficient fossil ev |
| Environment | Land |
| Era | Triassic |
| Period | Triassic |
| Type | Theropod |
| Location | Germany |
Tanystrosuchus is one of palaeontology's most enigmatic theropod dinosaurs, known from the Late Triassic period approximately 228 to 208 million years ago. This mysterious creature represents a fascinating puzzle in our understanding of early dinosaur evolution, as it is based on remarkably limited fossil evidence found in the Middle Stubensandstein formation of Germany.
The entire scientific knowledge of Tanystrosuchus rests upon a single neck vertebra of the species T. posthumus. This fragmentary evidence makes it extremely challenging for palaeontologists to reconstruct what this theropod actually looked like, how it lived, or even to confirm its exact relationships within the dinosaur family tree. The name 'Long Crocodile' reflects early interpretations of this vertebra, though our understanding has evolved considerably since its discovery.
As a theropod from the Triassic period, Tanystrosuchus would have lived during the dawn of the dinosaur age, sharing its world with the earliest dinosaur species and other archosaur relatives. The Middle Stubensandstein formation where it was discovered represents an ancient landscape quite different from modern Germany, with a warmer climate and diverse reptilian fauna.
The limited fossil evidence suggests this was likely a carnivorous dinosaur, as is typical of theropods, but its exact size, hunting strategies, and ecological role remain matters of scientific speculation rather than established fact.
The single known neck vertebra shows characteristics typical of theropod dinosaurs, but insufficient detail remains to identify truly distinctive features that would separate Tanystrosuchus from its contemporaries. Its classification relies heavily on the anatomical details of this lone vertebral element.
With only a single neck vertebra known, virtually nothing can be determined about Tanystrosuchus's behaviour with certainty. As a theropod, it would likely have been carnivorous and possibly bipedal, but specific hunting strategies, social behaviour, or habitat preferences remain entirely speculative.
Tanystrosuchus was first described by Friedrich von Huene in 1915. The original fossils were discovered at Middle Stubensandstein formation, Germany.