Ankylosaurus, 2 arge osteoderm plates DeinonychusAnkylosaurus was a large animal by modern standards, estimated at lengths of 30 feet and weighing up to 6 tones. However, following a significant redescription of the fossils in 2004, a much smaller size has been suggested, based on the largest known skull, at 64. 5 cm (25. 4 inches) long and 74. 5 cm (29. 3 inches) wide, the whole animal was estimated at 6. 25 m (20. 5 feet) long, 1. 5m (4. 9 feet) wide and 1. 7 m (5. 6 feet) tall at the hip. The
They are found in the coastal surface waters of all the major oceans
Osteoderms are also found in the skin of crocodiles
Morrison Formation of Moffat County
Ancient Grave Yields Double Boiler
The Vendian marks the first appearance of a group of large fossils collectively known as the "Vendian biota" or "Ediacara fauna
Despite superficial similarities to the Gray Wolf
The petrified forest contains large amounts of well preserved silicified wood and cones
and rhinoceroses)
a long bony tail
following a significant redescription of the fossils in 2004
This specimen is a direct cast replica from the original skull
not the 90o angle common in similar dinosaurs