Facts about Mosasaurs, an extinct prehistoric animal

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Dinosaur Jungle   >   Other Prehistoric Animals   >   Mosasaurs

Mosasaurs



Mosasaurus
Click here for more Mosasaur Pictures

Scientific Classification
  Kingdom Animalia
  Phylum Chordata
  Class Sauropsida
  Order Squamata
  Suborder Scleroglossa
  Infraorder Anguimorpha
  Family Mosasauridae
Mosasaurs are a group of extinct marine reptiles. They were powerful swimmers with long streamlined snake-like bodies (although they did have four limbs all finned, and possibly a finned tail), and ate fish, turtles, sea urchins, and shellfish including molluscs. The smallest known mosasaur was about 10 feet (3 meters) long, but the largest grew as long as 57 feet (17.5 meters).

Mosasaurs were not dinosaurs, but were lepidosaurs (reptiles with overlapping scales, the group that includes lizards, snakes, and sphenodonts such as the tuatara):
  • Mosasaurs are believed to have evolved from aigialosaurs, which were semi-aquatic lizards that lived during the early Cretaceous period, and who are believed to be related to monitor lizards.

  • In 1869, Edward D. Cope suggested that Mosasaurs and snakes share a common marine ancestor. This idea was based on the similarities observed in Mosasaur and snake jaws, the reduced limbs, and the fact that Mosasaurs may have moved in a similar way to snakes. In the 1990s, the discovery of fossils of early snakes with vestigial limbs in marine sediments seemed to provide support for this hypothesis. However, more recently, other early snake fossils have been found, and since these show animals with hind limbs and an apparently burrowing lifestyle, some doubt has been cast on the idea that Mosasaurs and snakes shared a common ancestor.
Mosasaur skeletions:
Mosasaur fossils

Mosasaurs appear to have first evolved during early or middle Cretaceous period, perhaps around 96 million years ago. In the last 20 million years of the Cretaceous, following the extinction of Ichthyosaurs, they became the dominant predators. However, all Mosasaurs died out during the mass extinction at the end of the Cretaceous period.

The first publicized discovery of a Mosasaur fossil occurred in 1778. A fossil was found in a limestone quarry in 1780, near the city of Masstricht in Holland. It was not however named or scientifically described until later, the name eventually given, Mosasaur, means "Meuse lizard", and refers to the nearby Meuse River. Subsequently, other fossils which had been found earlier in the same area, and had been on display since around 1770, were also identified as being from a Mosasaur. Since then, other Mosasaur fossils have been found in many other countries around the world, including Australia, Canada, Denmark, Mexico, New Zealand, Peru, Sweden, and the United States, as well as in Africa and off the coast of Antarctica.

Mosasaurs Timeline:



Mosasaurs were marine reptiles that lived between 96 and 65 million years ago

Mosasaurs were marine reptiles that lived between 96 and 65 million years ago


Related Information & Resources


See Also

Mosasaur Books


Here are some books from Amazon.com:

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Systematics and Morphology of American Mosasaurs
By Dale A. Russell

The Yale Peabody Museum
Released: March 17th, 2020
Paperback (254 pages)

Systematics and Morphology of American Mosasaurs
Lowest New Price: $38.00*
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Description:
Systematics and Morphology of American Mosasaurs
  • Manufacturer: The Yale Peabody Museum
  • ISBN: 1933789441
  • EAN: 9781933789446
Details:
  • Paperback
  • Number of Pages: 254
  • Author: Dale A. Russell
  • Publication Date: March 17th, 2020
  • Release Date: March 17th, 2020
Physical Description:
  • Size: 10.0 Inches by 7.01 Inches by 0.53 Inches
  • Weight: 1.07144659332 Pounds
Click here for more information
Sea Monsters: A Prehistoric Adventure
By Marfé Ferguson Delano

National Geographic Children's Books
Released: October 9th, 2007
Paperback (32 pages)

Sea Monsters: A Prehistoric Adventure
Lowest New Price: $6.95*
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Description:
Sea Monsters: A Prehistoric Adventure
  • Manufacturer: National Geographic Children's Books
  • ISBN: 1426301626
  • EAN: 9781426301629
  • PartNumber: col
Details:
  • Paperback
  • Edition: An Official Companion to the Giant Screen Film
  • Number of Pages: 32
  • Author: Marfé Ferguson Delano
  • Publication Date: October 9th, 2007
  • Release Date: October 9th, 2007
Physical Description:
  • Size: 10.81 Inches by 10.0 Inches by 0.17 Inches
  • Weight: 0.3747858454 Pounds
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The Mother Iguanodon and the Fierce Mosasaur (The Deluxe Bedtime Story for Kids)
By Vivian Ice

Independently published
Released: December 23rd, 2019
Paperback (33 pages)

The Mother Iguanodon and the Fierce Mosasaur (The Deluxe Bedtime Story for Kids)
Lowest New Price: $12.95*
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Description:
The Mother Iguanodon and the Fierce Mosasaur (The Deluxe Bedtime Story for Kids)
  • Manufacturer: Independently published
  • ISBN: 1679744100
  • EAN: 9781679744105
Details:
  • Paperback
  • Number of Pages: 33
  • Author: Vivian Ice
  • Publication Date: December 23rd, 2019
  • Release Date: December 23rd, 2019
Physical Description:
  • Size: 8.5 Inches by 8.5 Inches by 0.08 Inches
  • Weight: 0.23 Pounds
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Mosasaurs dinosaur - Coloring Book
By Estrella Witt

Independently published
Released: April 21st, 2020
Paperback (200 pages)

Mosasaurs dinosaur - Coloring Book
Lowest New Price: $14.85*
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Description:
Mosasaurs dinosaur - Coloring Book
  • Manufacturer: Independently published
  • EAN: 9798639136504
Details:
  • Paperback
  • Number of Pages: 200
  • Author: Estrella Witt
  • Publication Date: April 21st, 2020
  • Release Date: April 21st, 2020
Physical Description:
  • Size: 11.0 Inches by 8.5 Inches by 0.46 Inches
Click here for more information
The Last Living Mosasaur
By Paul M Olsen III

CreateSpace Independent Publishing Platform
Released: December 5th, 2017
Paperback (26 pages)

The Last Living Mosasaur
Lowest New Price: $8.00*
In Stock.*
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Description:
The Last Living Mosasaur
  • Manufacturer: CreateSpace Independent Publishing Platform
  • ISBN: 1981467637
  • EAN: 9781981467631
Details:
  • Paperback
  • Number of Pages: 26
  • Author: Paul M Olsen III
  • Publication Date: December 5th, 2017
  • Release Date: December 5th, 2017
Physical Description:
  • Size: 9.0 Inches by 6.0 Inches by 0.06 Inches
  • Weight: 0.11 Pounds
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Dinosauro Mosasaurs - Libro da colorare (Italian Edition)
By Greta Bianchi

Independently published
Released: April 29th, 2020
Paperback (200 pages)

Dinosauro Mosasaurs - Libro da colorare (Italian Edition)
Lowest New Price: $14.85*
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Description:
Dinosauro Mosasaurs - Libro da colorare (Italian Edition)
  • Manufacturer: Independently published
  • EAN: 9798641188614
Details:
  • Paperback
  • Number of Pages: 200
  • Author: Greta Bianchi
  • Publication Date: April 29th, 2020
  • Release Date: April 29th, 2020
Physical Description:
  • Size: 11.0 Inches by 8.5 Inches by 0.46 Inches
  • Weight: 1.05 Pounds
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Dinosaure Mosasaurs - Livre de coloriage (French Edition)
By Julia Durocher

Independently published
Released: April 28th, 2020
Paperback (200 pages)

Dinosaure Mosasaurs - Livre de coloriage (French Edition)
Lowest New Price: $14.85*
In Stock.*
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Description:
Dinosaure Mosasaurs - Livre de coloriage (French Edition)
  • Manufacturer: Independently published
  • EAN: 9798640846522
Details:
  • Paperback
  • Number of Pages: 200
  • Author: Julia Durocher
  • Publication Date: April 28th, 2020
  • Release Date: April 28th, 2020
Physical Description:
  • Size: 11.0 Inches by 8.5 Inches by 0.46 Inches
  • Weight: 1.05 Pounds
Click here for more information
Sea Monsters: Prehistoric Creatures of the Deep
By Michael Everhart

Everhart, Michael
Released: October 2nd, 2007
Hardcover (192 pages)

Sea Monsters: Prehistoric Creatures of the Deep
List Price: $30.00*
Lowest New Price: $25.49*
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Description:
Sea Monsters: Prehistoric Creatures of the Deep
  • Manufacturer: National Geographic
  • Brand: Everhart, Michael
  • ISBN: 1426200854
  • EAN: 9781426200854
  • PartNumber: 9781426200854
Details:
  • Hardcover
  • Number of Pages: 192
  • Author: Michael Everhart
  • Publication Date: October 2nd, 2007
  • Release Date: October 2nd, 2007
Physical Description:
  • Size: 11.17 Inches by 9.44 Inches by 0.72 Inches
  • Weight: 2.4 Pounds
Features:
  • Used Book in Good Condition
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Mosasaur, the Return: Book Two of the Mosasaur Series
By David D. Holt

Brand: AuthorHouse
Released: January 23rd, 2009
Paperback (352 pages)

Mosasaur, the Return: Book Two of the Mosasaur Series
Lowest New Price: $17.99*
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Description:
Mosasaur, the Return: Book Two of the Mosasaur Series
  • Manufacturer: AuthorHouse
  • Brand: Brand: AuthorHouse
  • ISBN: 1438925972
  • EAN: 9781438925974
Details:
  • Paperback
  • Number of Pages: 352
  • Author: David D. Holt
  • Publication Date: January 23rd, 2009
  • Release Date: January 23rd, 2009
Physical Description:
  • Size: 9.0 Inches by 6.0 Inches by 0.88 Inches
  • Weight: 1.14199451716 Pounds
Features:
  • Used Book in Good Condition
Click here for more information
A new species of Globidens from South Dakota, and a Review of Globidentine Mosasaurs
By Dale A. Russell

Leopold Classic Library
Released: April 23rd, 2015
Paperback (30 pages)

A new species of Globidens from South Dakota, and a Review of Globidentine Mosasaurs
Lowest New Price: $8.95*
In Stock.*
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Description:
A new species of Globidens from South Dakota, and a Review of Globidentine Mosasaurs
  • Manufacturer: Leopold Classic Library
Details:
  • Paperback
  • Number of Pages: 30
  • Author: Dale A. Russell
  • Publication Date: April 23rd, 2015
  • Release Date: April 23rd, 2015
Physical Description:
  • Size: 11.0 Inches by 8.5 Inches by 0.07 Inches
Click here for more information


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