The fine grained sediments in these lagoons produced nearly flawless remains of the plants and animals which fell or were washed into them as well as some of their natural residents
The world's largest trilobite
is an extinct species of shark that lived approximately 23 to 3
This specimen is a direct cast replica from the original skull
crinoids carpeted the floors of shallow seas
Ankylosaurus, large osterderm plate Argentinosaurus The fine grained sediments inAnkylosaurus 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