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Showing posts from February, 2020

Homotherium (sabre-toothed cat) Viridiana Enriquez Antonio

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                                                      Homotherium                                                 The Homotherium existed 4 million years old, it went extinct 12,000 years ago. It was excavated in the late 1940s and early 1950s.                                               Homotherium is an extinct genus of machairodontine saber-toothed cats, often termed proportions, with longer, more robust forelimbs that gave it a hyena-like appearance. Based on this fossil, the Homotherium was likely a social predator. Homotherium reached 1.1 m at the shoulder and weighed an estimated 190 kg (420 lb) and therefore it was the size of an male African lion. Homotherium had the general appearance of a cat, but had a number of atypical features for a felid. The hind quarters were rather squat with feet that may have been partially plantigrade, causing the back to slope towards the short tail. Features of the hind limbs indicate that this cat was moderately capable of leaping. The pelvi

Intact Plesiosaur Skeleton Juan Daniel

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                                            Intact Plesiosaur Skeleton  How old it is: The fossil dating from 180 million years ago as indicated by the ammonites associated with it measured 1.5 metres (4 ft 11 in) in length and may be related to Rhomaleosauru It is probably the best preserved When it was unearthed: One of the oldest and most complete plesiosaur  fossils recovered in North America, and the oldest yet discovered from the Cretaceous Period, represents a new genus of the prehistoric aquatic predator according to palaeontologists who have formally described the creature after its remains were uncovered  in a mine in march 28 2008                                                                                                                                                                                             Where it was exuvated:  The Plesiosauria or   plesiosaur  are an order or clade of extinct Mesozoic marine reptiles ... One of Turner's partial

archaeopteryx abraham

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How old is it: Archaeopteryx is considered by many to be the first bird, being of about 150   years  of age.                      when it was unearthed: archaeopteryx was first discovered in 1860 or 1861, when a solitary feather was unearthed  from limestone deposits near Solnhofen, Germa ny. where it was exuvated: The first archaeopteryx  fossil (a feather) was found  in 1860 near Solnhofen, Germany, and was named by the German paleontologist Herman von Meyer                                         archeaopteryx   is famous  for being the 'missing link' between birds and dinosaurs, because it shares a good deal of  characteristics with both birds and dinosaurs. picture alive pic of fossil  https://www.youtube.com/watch?v=PlIWJ-nC7sg

colby

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                1. how old is sue sue  the t.rex is about 67 million years                  2.when was sue unearthed  sue the t.rex was unearthed in 1990 in south Dakota                     3.  where sue was excavated on a cliff on a ranch on the Cheyenne River Sioux reservation.                                        

Lorii :)

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                                                        Diplodocus                        How old is the Diplodocus ~  This genus of dinosaurs lived in what is now mid-western North America at the end of the Jurassic period. Diplodocus is one of the more common dinosaur fossils found in the middle to upper Morrison Formation, between about 154 and  152 million years  ago, during the late Kimmeridgian age. When was it unearthed ~  Andrew Carnegie's team of scientists discovered and assembled the first Diplodocus  in 1899. When was it excavated ~  Starting in April of 1916 and ending in July of 1916, Dall DeWeese and two primary workers  excavated  everything they could find and along the way they determined that the fossils were of a Diplodocus  longus.      Diplodocus fossil:                                              Diplodocus photo:                                                   https://www.youtube.com/watch?v=r1yv7Pi78Og    

kemberly , Megalodon :)

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                                                          Megalodon How old is it?  The earliest records of the Megalodon shark (accordingto fossil records) have been calculated to be between 25-28 million years old giving this large predatory shark a fairy long interrupted existence on this planet. When was it unearthed: In the 1860's , a fossilized spinal column with roughly 150 vertebrae was unearthed in Belguim. Japan and North America have yielded Megalodon backbones as well. When wa s it excavated:  The first attempt to reconstruct the jaw of Megalodon was made by Bashford Dean in 1909, displayed at the America Museum of Natural History. From the dimensions of this jaw reconstruction, it was hypothesized that Megalodon could have approached 30m in length. What information gives the fossil:   The  Megalodon  Shark Was The Largest Predator That Ever Lived. Reaching lengths of up to 60-70 feet and an estimated maximum weight of over 60 tons,