Age: one hundred ten million years recent
Nigersaurus could be a 30-foot-long herbivorous archosaur that lived 110 million years past in what’s currently Niger’s desert Desert. Nigersaurus lived in an exceedingly lush surroundings aboard the predatory dinosaur Suchomimus, the plant eaters ouranosaurus and lurdusaurus, and supercroc. Nigersaurus had a fragile os and particularly} wide mouth lined with teeth especially custom-made for browsing plants on the point of the ground. This bizarre, long-necked dinosaur is characterised by its remarkably broad, straight-edged muzzle tipped with quite five hundred standardised teeth. the initial fossil skull of Nigersaurus is one of the primary archosaur oss to be digitally reconstructed from CT scans.
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Journal Entry: Sept 9, 2000
Update on archosaur Discoveries from Paul Sereno
Gadoufaoua 11:30 pm
outre five hundred-toothed dinosaur
Our first we have a tendency toek within the field has been spectacular! exceptional discoveries appear to be expecting North American nation around each dune. On our first day, we found bones of the long-necked dinosaur Nigersaurus. Nigersaurus, you may remember, we named for bones collected on the last expedition here 3 years ago. This saurischian (long-necked dinosaur) has an uncommon skull containing as several as 500 slender teeth. a serious goal of this expedition is to search out the remainder of this uncommon archosaur thus we are able to describe it and reconstruct it for everybody to see.
we have a tendency to are closing in thereon goal quick as a result of we stumbled on a skeleton many days later! This skeleton is lying on its aspect with the tail semicircular upward. The curve of the backbone measures concerning fifteen feet. we have a tendency to fastidiously brushed the sand off the one hundred ten million-year-old bones and mamma channels between the main spaces of the skeleton. shortly we will cowl every area in plaster in order that the skeleton will be transported out of the sector and back to the laboratory.
however that’s not all for Nigersaurus. Chris took North American nation all to a flat space of purple-colored arenaceous rock wherever he had settled the upper jawbone of a baby Nigersaurus—one that will work on prime of a silver dollar! This Nigersaurus was a hatchling, most likely below one year from hatching once it died and was fossilized.
a brand new carnivore
whereas walking across a awfully flat area, Gabe created an interesting find—the bones of a new zoophagous archosaur lay part exposed at her feet. She brushed away the sand from the higher jaw. close lay a part of the backbone and also the hip bones. This was a mean customer—the bones are from a skeleton that will live concerning thirty feet long! we have a tendency to hope to search out a lot of proof of this sharp-toothed creature because the field season goes on.
a large crocodilian
we have a tendency to have an interest find quite simply dinosaurs. we would like to find all animals and plants that after lived on the traditional streams and forests one hundred ten million years ago. one amongst the foremost common fossils we encountered within the initial week of labor belonged to a massive crocodilian referred to as Sarcosuchus.
This reptile was so much larger than any living crocodile. judgement from the 6-foot os we have a tendency to found within the initial week, we suspect it’s going to have measured over forty feet long! The armor plates on its back measured a foot across. we have a tendency to even set out the team to induce a way of simply however massive this animal was.
Hans has been operating with a crew of Allison and Dave to excavate a brand new site. As we mamma round the skull, we uncovered another juvenile skull of constant species lying right next to the big one. They sliced a block of rock that enclosed each skulls, knowing full well that it’d weigh around 600 pounds once sheathed in plaster.
thus i believe you may agree that the primary week here has been a thriller.