Tenontosaurus tilletti

Overview

Tenontosaurus tilletti is a dinosaur known for a broad beak, a deep skull, and a long tail. Its forelimbs are described as shorter than the hind limbs but robust. Different features can be explored in its head and limbs.^[1][2]

Key facts

Skull OMNH58340 provides evidence for a broad, toothless beak. Separate postcranial research describes broad hands and strong forelimbs. The head and forefeet became known through different studies.^[1][2]

Time and place

It is studied through Aptian and Albian material of the Early Cretaceous. The Cretaceous as a whole spans roughly 140–66 million years ago. Separate studies of the head and postcranial bones describe its form.^[2][3]

The time range describes source context, not the complete duration of this species.

Size, form and skeleton

Skull research describes a broad, toothless beak and a deep cranium. A skeletal thesis on LL12275 describes a long tail, short robust forelimbs, and broad hands. The connections among front and rear limbs and the long tail can be examined together.^[1][2]

The Natural History Museum in London gives a body length of approximately 7 m in its account of the genus Tenontosaurus.^[4]

Habitat and reproduction

How were the front and rear limbs arranged differently in the body? Tenontosaurus material reveals short but robust forelimbs and broad hands. Extending observations to the long tail helps divide the front-to-back body into several regions.^[2]

Fossil discovery

A skeletal thesis made available in a repository in 2013 studied subadult LL12275. A 2015 cranial anatomy study used OMNH58340 to examine the broad beak and nasal outline. Different specimens and types of research contribute to understanding one dinosaur’s body.^[1][2]

References

1. Thomas (2015) — Head anatomy of Tenontosaurus tilletti
2. Tennant (2013) — Thesis on the osteology of the Tenontosaurus skeleton
3. International Commission on Stratigraphy (2024) — Geological time chart
4. Natural History Museum, London — Tenontosaurus
5. Suzuki et al. (2002), “A New Specimen of Shuvuuia deserti Chiappe et al., 1998 from the Mongolian Late Cretaceous, with a Discussion of the Relationships of Alvarezsaurids to Other Theropod Dinosaurs,” Contributions in Science 494; DOI 10.5962/p.226791.

Research questions

How might compression alter a skull’s nasal outline? The cranial study compared the possibility that the outline was exaggerated in other, laterally compressed specimens. It distinguishes changes during preservation from original form.^[1]

Observation

Move your gaze from the broad beak to the deep skull and trunk. Consider the strong forelimbs, broad hands, and long tail together to compare several body regions.^[1][2]