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Showing results for tags 'mosasaur vertebra'.
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From the album: North Sulphur River
The only way I can find fossils - if they're right out in the open! This one conveniently perched itself on a rock. -
From the album: North Sulphur River
NSR is known for its mosasaur material. If you know what to look for, you're almost guaranteed to find a bone. Most of the stuff you will find however will be just chunks, some of them will be identifiable like jaws or vertebrae.-
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- mosasaur
- mosasaur jaw
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I've got this very worn vertebral centrum from the marine Conway Formation near Oaro (Late Cretaceous; about 79-73 Ma) on the south island of New Zealand. The only two logical candidates are plesiosaur or mosasaur from this formation, both of which are known here. There are characteristics of both groups seen on this bone which is tripping me up a bit. One end face seems a bit concave and the other more convex which is a mosasaur feature, but then there also looks to be two distinct holes on the ventral side (see photo three) which could be the paired foramina that are characteristic of plesiosaur vertebrae. So i am left scratching my head! What do others think? Front face Dorsal view Ventral view (note what look like paired foramina) Lateral view
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- conway formation
- haumuri bluffs
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From the album: MY FOSSIL Collection - Dpaul7
Mosasaur vertebra SITE LOCATION: Taylor Group, North Sulfur River, Texas, USA TIME PERIOD: Upper Cretaceous Period (100-145 Million Years ago) Data: First and most importantly, mosasaurs are not dinosaurs. Mosasaurs (from Latin Mosa meaning the 'Meuse river', and Greek sauros meaning 'lizard') are an extinct group of large marine reptiles. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764. Mosasaurs probably evolved from an extinct group of aquatic lizards known as aigialosaurs in the Early Cretaceous. During the last 20 million years of the Cretaceous period (Turonian-Maastrichtian ages), with the extinction of the ichthyosaurs and pliosaurs, mosasaurs became the dominant marine predators. They became extinct as a result of the K-Pg event at the end of the Cretaceous period, about 66 million years ago. Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Family: †Mosasauridae-
- mosasaur vertebra
- taylor group north sulfur river texas
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From the album: MY FOSSIL Collection - Dpaul7
Mosasaur vertebra SITE LOCATION: Taylor Group, North Sulfur River, Texas, USA TIME PERIOD: Upper Cretaceous Period (100-145 Million Years ago) Data: First and most importantly, mosasaurs are not dinosaurs. Mosasaurs (from Latin Mosa meaning the 'Meuse river', and Greek sauros meaning 'lizard') are an extinct group of large marine reptiles. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764. Mosasaurs probably evolved from an extinct group of aquatic lizards known as aigialosaurs in the Early Cretaceous. During the last 20 million years of the Cretaceous period (Turonian-Maastrichtian ages), with the extinction of the ichthyosaurs and pliosaurs, mosasaurs became the dominant marine predators. They became extinct as a result of the K-Pg event at the end of the Cretaceous period, about 66 million years ago. Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Family: †Mosasauridae-
- mosasaur vertebra
- taylor group north sulfur river texas
- (and 1 more)