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Seismosaurus
Seismosaurus was a massive plant-eater (herbivore) that lived in North America
during the
Jurassic period, between about
155 and 145 million years ago.
When initially discovered, Seismosaurus was believed
to be between 130 and 170 feet (40 to 52 meters) in length,
with most of its length was taken up by its very long neck and tail, but the body and head
being both comparatively small.
Recently however there has been discussion among scientists about Seismosaurus,
firstly about whether it should be
classified as a separate genus from
Diplodocus,
and secondly about its length - some recent estimates put its length as "only"
110 feet (33.5 meters).
Seismosaurus was a herbivore (plant-eater) that lived from 155 to 145 million years ago
Related Information & Resources
See Also
Seismosaurus Facts
Here is a summary of some of the key facts about Seismosaurus:
- Seismosaurus was a genus of dinosaur. Some scientists have argued that Seismosaurus should be classified as a species of Diplodocus.
- "Seismosaurus" means "earthquake lizard" (a reference to its enormous size).
- Seismosaurus was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Seismosaurus was not closely related to lizards, it did have similarly shaped pelvic bones.
- Seismosaurus was a Sauropod - a member of a group of related large quadrupedal herbivorous (plant-eating) dinosaur with long necks.
- Seismosaurus lived between about 155 million years ago and 145 million years ago, during the Jurassic period.
- Seismosaurus lived in North America.
- Seismosaurus was a herbivore (plant-eater).
- Seismosaurus is thought to have been a grazer, and probably could not have raised its head very far above the ground level.
- Seismosaurus was possibly about 130 to 170 feet in length (40 to 52 meters). There are however some scientists who believe that Seismosaurus was actually a species of Diplodocus, and was perhaps "only" about 110 feet (33.5 meters) long.
- Seismosaurus weighed about 25 to 30 tons.
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Seismosaurus Books Here are some books from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
By David Gillette
Columbia University Press Released: April 15th, 1994 Hardcover (205 pages)
 | List Price: $85.00* Lowest New Price: $74.66* In stock. Usually ships within 4 to 5 days.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Seismosaurus- Manufacturer: Columbia University Press
- Brand: Columbia University Press
- ISBN: 0231078749
- EAN: 9780231078740
- PartNumber: illustrations
Details:- Hardcover
- Edition: 1st Edition
- Number of Pages: 205
- Authors: David Gillette, Mark Hallett
- Publication Date: April 15th, 1994
- Release Date: April 15th, 1994
Physical Description:- Size: 11.0 Inches by 8.5 Inches by 0.56 Inches
- Weight: 2.57 Pounds
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By J. Lynett Gillette
Dial Books Released: March 1st, 1994 Library Binding (400 pages)
 | List Price: $14.89* Lowest Used Price: $2.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: The Search for Seismosaurus: The World's Longest Dinosaur- Manufacturer: Dial Books
- ISBN: 0803713592
- EAN: 9780803713598
Details:- Product Category: Library Binding
- Edition: 1st Edition
- Number of Pages: 400
- Author: J. Lynett Gillette
- Publication Date: March 1st, 1994
- Release Date: March 1st, 1994
Physical Description:- Size: 10.75 Inches by 8.75 Inches by 0.5 Inches
- Weight: 0.95 Pounds
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By Don Lessem
Brand: Carolrhoda Books Library Binding (40 pages)
 | Lowest New Price: $39.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Seismosaurus: The Longest Dinosaur (Special Dinosaurs)- Manufacturer: Carolrhoda Books
- Brand: Brand: Carolrhoda Books
- ISBN: 0876149875
- EAN: 9780876149874
Details:- Product Category: Library Binding
- Number of Pages: 40
- Authors: Don Lessem, Donna Braginetz
Physical Description:- Size: 8.5 Inches by 9.75 Inches by 0.5 Inches
- Weight: 0.84 Pounds
Features:- Used Book in Good Condition
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By Rupert Matthews
Brand: Heinemann Library Released: June 2nd, 2004 Paperback (32 pages)
 | Lowest Used Price: $12.06* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Seismosaurus (Gone Forever!)- Manufacturer: Heinemann
- Brand: Brand: Heinemann Library
- ISBN: 1403449198
- EAN: 9781403449191
Details:- Paperback
- Number of Pages: 32
- Author: Rupert Matthews
- Publication Date: June 2nd, 2004
- Release Date: June 2nd, 2004
Physical Description:- Size: 8.75 Inches by 7.75 Inches by 0.25 Inches
- Weight: 0.12 Pounds
Features:- Used Book in Good Condition
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By Elizabeth J. Sandell & Howard Schroeder
Brand: Bancroft Sage Pub Paperback (31 pages)
 | List Price: $7.95* Lowest Used Price: $1.95* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Seismosaurus: The Longest Dinosaur (Dinosaur Discovery Era)- Manufacturer: Bancroft Sage Pub
- Brand: Brand: Bancroft Sage Pub
- ISBN: 0944280099
- EAN: 9780944280096
Details:- Paperback
- Number of Pages: 31
- Authors: Elizabeth J. Sandell, Marjorie L. Oelerich, Howard Schroeder, Vista III Design
Physical Description:- Size: 12.0 Inches by 9.0 Inches by 0.25 Inches
- Weight: 0.3747858454 Pounds
Features:- Used Book in Good Condition
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By Tim Batty
Haynes Publishing UK Released: November 26th, 2019 Paperback (192 pages)
 | Lowest New Price: $10.15* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Dinosaurs: Classification, Time, Size, Diet & More! (Haynes Pocket Manual)- Manufacturer: Haynes Publishing UK
- Brand: Haynes Publishing UK
- ISBN: 1785216775
- EAN: 9781785216770
Details:- Paperback
- Format: Illustrated
- Edition: Illustrated
- Number of Pages: 192
- Author: Tim Batty
- Publication Date: November 26th, 2019
- Release Date: November 26th, 2019
Physical Description:- Size: 6.375 Inches by 5.0 Inches by 0.75 Inches
- Weight: 0.6834330122 Pounds
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Seismosaurus Toys Here are some toys/games from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
Boley Multicolor Toy
 | List Price: $25.95* Lowest New Price: $21.95* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Boley 14 Pk Dinosaur Toys for Kids with Educational Pamphlet - 9" Long Dinosaur Toy Figures for Boys & Girls Ages 3+- Manufacturer: Boley
- Brand: Boley
- UPC: 084495530914
- EAN: 0084495530914
- PartNumber: 1124A
Details:Physical Description:- Size: 14.48 Inches by 23.62 Inches by 21.34 Inches
- Weight: 2.20462262 Pounds
- Color: Multicolor
Features:- WHAT'S INSIDE: With Boley's Dino Book Bundle, adventure awaits! Comes with 14 realistic dinosaur figurines and an educational Dino Guide pamphlet so you can learn all the dinosaur names!
- EDUCATIONAL FUN: From Apatosaurus to Velociraptor, our Dino Guide will help your child explore the world of their favorite dinosaurs! Learn about their size, diet, and other fun facts through full color illustrations and kid-friendly written profiles.
- SAFE AND CHILD FRIENDLY: At Boley, child safety is our highest priority. That's why our entire production process is rigorously monitored by the most reputable organizations of child safety standards, including ASTM, Sedex, ICTI Care, and more.
- LOOKING FOR MORE?: Check out our Boley store here on Amazon for an exciting and diverse array of children's educational toys. From dollhouses to dinosaurs, Boley is where the action is!
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Adore Plush Company Blue Toy
 | Lowest New Price: $24.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Adore 21" Moby The Mosasaurus Dinosaur Stuffed Animal Plush Toy- Manufacturer: Adore Plush Company
- Brand: Adore Plush Company
- UPCs: 810037321487, 764880984231
- EANs: 0764880984231, 0810037321487
- PartNumber: 2148
Details:Physical Description:- Size: 4.0 Inches by 20.5 Inches by 8.0 Inches
- Color: Blue
Features:- 21" Length.
- No plastic pellets or bean bag filler.
- Cute, soft and squeezable.
- Nicely detailed realistic design.
- Designed in the USA by Adore Plush Company.
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Dazmers
 | Lowest New Price: $37.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Volcano Dinosaurs Playset with 8 Jurassic Dinosaur Figures and Fence, Mist-spouting Volcano World Set - Dinosaur Toys for Kids - Mini Gift for Toddlers Ages 3+- Manufacturer: Dazmers
- Brand: Dazmers
- UPC: 787790434344
- EAN: 0787790434344
- PartNumber: DT4344
Physical Description:- Size: 6.0 Inches by 9.0 Inches by 9.0 Inches
- Color: Multi
Features:- This is a perfect Christmas Gift for your toddlers, family & home! They will love to find it under the Christmas Tree. You don't have to spend big to score with our top Christmas Discounts. Add it to your Christmas list & we promise to make your family's holiday special. Enjoy this Christmas season knowing that everyone on your list is taken care of & start watching all of your favorite holiday movies early!
- DINOSAUR VOLCANO KIT FOR KIDS: this dinosaur playset with volcano includes everything you need to create your own glowing volcano, features 8 realistic dinosaur figures, 12 attachable hurdles to build a fence around the volcano, 1 high detailed electric volcano. The whole set is reusable as many times as you want.
- BUILD YOUR OWN VOLCANO ERUPTION: just pour water into the tank inlet on the top of the volcano, using the bottle included, and turn on using the switch. The mist will come out instantly along with the lighting lava effect. The lava looks even better in the dark!
- EXPLOSIVE FUN WITHOUT THE MESS!: this is a great volcano kit for science projects, science learning, and volcano simulation. Hours of fun without the messy end await! - The volcano set is easy to use and you’ll only need water to produce the steam-erupting effect. Once the experiment is finished, let it dry for a few minutes and will be ready to store away. The volcano and the materials needed are non-toxic, safe for children, and the kit is suitable for 3 ages and up.
- BATTERY POWERED VOLCANO: the volcano uses 3 AA (1.5V) batteries, it’s ideal for volcano eruption experiments. The volcano has a sturdy construction, made with great details and water-proof so the paint won’t fade easily. Volcano dimensions are 9’’ W x 6’’ HBATTERY POWERED VOLCANO: the volcano uses 3 AA (1.5V) batteries, it’s ideal for volcano eruption experiments. The volcano has a sturdy construction, made with great details and water-proof so the paint won’t fade easily. Volcano dimensions are 9’’ W x 6’’ H
- CREATE YOUR OWN JURASSIC JUNGLE: this dinosaur volcano playset allows your children to create, imagine, and build their own Jurassic world and get a dinosaur education. Let your kids' imagination go wild, they’ll love learning about the Jurassic period dinosaurs, building a fence to contain the animals, and creating their own theme park with an electric volcano. The set makes a great gift for dinosaur lovers!
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wakeInsa
 | List Price: $39.98* Lowest New Price: $34.98* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: wakeInsa 2.4G Remote Control Dinosaur,RC Dino,Mosasaurus Toy,Kids Pool Toy,Dinosaur Toy for 3+ Year Old Boys,Water Toy,Christmas and Birthday Dinosaur Gift for Boys and Girls- Manufacturer: SRJ
- Brand: wakeInsa
- PartNumber: SRJ-01
Physical Description:- Size: 3.1 Inches by 15.7 Inches by 5.7 Inches
- Color: Remote Control Mosasaurus
Features:- WHAT YOU GET - The remote control dinosaur set contents, 1 x RC mosasaurus toy, 1 x 500mAh batteries (boat used), 1x controller, 1 x USB charging cable, 1x user manual.
- MULTIFUNCTIONAL DINOSAUR TOYS - It has seven features, 2.4GHz remote control, rechargeable 500mAh battery, 360° rotatable, dual propeller drive, one-key demo, off-water power-off protection, spray water.
- HIGH QUALITY & GOOD WATER RESISTANCE - The Mosasaurus toy is made of high quality ABS material, modelled after the real Mosasaurus, with realistic details. It's more powerful than a remote control shark.The battery cover has a rubber sealing ring to prevent water from entering inside during operation, which greatly increases waterproofing.The RC mosasaurus would energize only when put into water.
- BATTERY LIFE & CONTROL DISTANCE - After charging for 30 minutes, the battery can be used for 20 minutes. The remote control uses advanced 2.4 GHz technology, and the range is up to 130 feet. It is suitable for most ponds, swimming pools and gentle rivers. The perfect pool toy for boys as a Christmas and birthday gift. Adults and kids will love this water toy.
- AFTER-SALES COMMITMENT - We are committed to providing satisfactory customer service. If you have any problem with your kids toy, please contact us first, we will take care of the problem within 24 hours. Your purchase is covered by a 1-year warranty.
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Jurassic World Toys Gray Accessory
![JURASSIC WORLD Real Feel Mosasaurus [Amazon Exclusive]](https://m.media-amazon.com/images/I/41ScsEjwwjL._SL160_.jpg) | Lowest New Price: $59.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: JURASSIC WORLD Real Feel Mosasaurus [Amazon Exclusive]- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: FNG24
- UPCs: 615912348593, 887961590678
- EANs: 7426911507194, 0615912348593, 0887961590678
- PartNumber: FNG24
Details:- Product Category: Accessory
Physical Description:- Size: 8.0 Inches by 5.0 Inches by 24.0 Inches
- Weight: 1.0 Pounds
- Color: Gray
Features:- Get ready for thrilling action and adventure with Jurassic World!
- Making a bigger splash than ever, Mosasaurus, the colossal swimming creature, is back again!
- Mosasaurus will thrill fans with its massive size and movie-inspired design!
- Authentic textured skin, realistic sculpting and articulation make colossal creature come to life.
- Colors and decorations may vary.
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FRUSE
 | Lowest New Price: $19.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Jurassic Dinosaur Toys,12 PCS Realistic Jumbo Dinosaur Figurines,Educational Dino Figure Playset w/ Information Dino Book,Dinosaur Toys for Kids 3-5- Manufacturer: FRUSE
- Brand: FRUSE
- UPC: 650076839273
- EAN: 0650076839273
- PartNumber: D101
Physical Description:- Size: 8.8 Inches by 6.1 Inches by 5.5 Inches
- Color: Multicolor
Features:- 【Jurassic Era】Do you know what animals live in Jurassic era? Most people will say ’dinosaurs’ ! This interactive dino playset includesTriceratops, Carnotaurus, Velociraptor, Parasaurolophus, Ankylosaurus, Dilophosaurus, Pachycephalosaurus, Spinosaurus, Tyrannosaurus Rex, Pterosaur, Brachiosaurus and Stegosaurus in total 12 dinosaurs.Bring kids falling wonderful Jurassic Dino World.
- 【Ultimate Realistic Dino Toys】Each beautiful Jurassic dinosaur doll set is modeled after real dinosaur animals. Each lifelike dinosaur has its own unique pose and movement.Every unique dinosaurs are designer carefully choice non-toxic PVC and high quality material to made.Also plus hand-painted make these plastic dinosaur figure more durable and realistic.
- 【Knowledge Test-book】Compare with competition,our playset come with a extra dinosaur information knowledge book.Kids can learn about each dinosaur form funny text and beautiful pictures in this book.Include appearance,characteristics,habits and living habits of dinosaurs.Perfect as early education learning toys for kids.
- 【Fun Won’t Stop】Fun for kids with this realistic dinosaur animal playset.Imagine how much fun it will be for your baby to play battle games with friends while holding an animal doll! It can also be used as a collectible or decorative toy.Vibrant colors, great attention to detail and realistic movement make this a collection that will excite your kids.
- 【NEVER GO WRONG AS A GIFT】In this era of advanced electronic technology,many mothers will worry that their baby will be addicted to video games.But our realistic dinosaur figures will spark hours of imaginative play.Make away your kids from electronics and let your child's imagination run.Our dino set come with a wonderful storage box,also very suitable as gift for kids at Birthday party,Christmas,Halloween or any Holidays.
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fromeasy
 | List Price: $45.99* Lowest New Price: $32.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: Remote Control Dinosaur Toys for Kids 3 4 5 6 7, Mosasaurus Diving Toys RC Boat with Light and Spray Water for Swimming Pool Lake Bathroom Ocean Protector Bath Toys- Manufacturer: fromeasy
- Brand: fromeasy
- Model: 3712-1A
- PartNumber: 3712-1A
Physical Description:Features:- 【Remote Control Shark VS Mosasaurus 】Cretaceous period Mosasaurus return the ocean, RC Dionsaur VS RC Shark.Who will be the real overlord of the ocean ?
- 【Lifelike RC Dino】Streamlined body, flexible tail joints, after you are proficient in operation, you can swing freely left and right like real Mosasaurus, bringing you unlimited reverie and fun.
- 【USB dinosaur remote control toy】Built-in rechargeable 3.7V 500mAh lipo battery and comes with a USB charging cable. The Mosasaurus can swim 20min on a fully charged battery (one charge takes 60 minutes)Controller requires 2*AAAbatteries (NOT INCLUDED).
- 【2.4G RC Mosasaurus Dino Toy】Unlimited 2.4GHz remote control technology provides forward, backward, left, and right controls as well as variable speed and auto mode control, with 50m wireless distance.Mosasaurus toy also increased the light and the water spray function brings more fun when playing in the dark or evening.
- 【Perfect gift】Mosasaurus is the largest top predator of the Cretaceous period, the overlord of the ocean in ancient times.Toys for 5 year old boy birthday gift exquisite design and hand paint process, perfect Christmas birthday gift for kids and collector.
- Suggest: 1. After receiving the product, please fully charge it before operating it. 2. When rc mosasaurus swims slowly, please charge in time 3. The remote control is not waterproof, please pay attention to maintenance.
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EOIVSH
 | Lowest New Price: $29.99* In Stock.* *(As of 03:05 Pacific 26 Jan 2023 More Info)
Click Here | Description: EOIVSH Dinosaur Toys Set Megalodon and Mosasaurus, Realistic Ocean Dinosaur Sea Monster Shark Toys Prehistoric Sea Animal Figures for Party Favors, Toys Collection, Birthday Gifts- Manufacturer: EOIVSH
- Brand: EOIVSH
- PartNumber: 056-MegalodonMosasaurus
Physical Description:Features:- Package Include: Come with a giftable colorbox, include 1x Megalodon, 1x Mosasaurus, 16x Dinosaur Cards( with various dinosaur pictures and dinosaur descriptions )
- Natural appearance: Each dinosaur figure is finely sculpted and hand painted by experts, highly detailed for realistic appearance
- Great addition: With lifelike details, active poses, these dinosaur figures can easily help capture kids' attention and spark imaginative play, suitable for landscape scenes, educational toy, home desktop decoration
- High quality: Made of environmental PVC, durable and washable, heavy duty and drop-resistant
- Great gift: These model toys are designed for children to learn and enrich dinosaur characters, perfect gift for kids who enjoy playing the dinosaur toy
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