Archaeopteryx Skull Replica - 2"

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Archaeopteryx lithographica.,Archaeopteryx, sometimes referred to by its German name Urvogel ("original bird" or "first bird"), is the earliest and most primitive bird known. The name is from the Ancient Greek meaning "feather" or "wing". Archaeopteryx lived in the late Jurassic Period around 150–145 million years ago, in what is now southern Germany during a time when Europe was an archipelago of islands in a shallow warm tropical sea, much closer to the equator than it is now. Similar in size and shape to a European Magpie, Archaeopteryx could grow to about 0.5 metres (1.6 ft) in length. Despite its small size, broad wings, and inferred ability to fly or glide, Archaeopteryx has more in common with small theropod dinosaurs than it does with modern birds. In particular, it shares the following features with the deinonychosaurs (dromaeosaurs and troodontids): jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw"), feathers (which also suggest homeothermy), and various skeletal features. The features above make Archaeopteryx the first clear candidate for a transitional fossil between dinosaurs and birds. The first complete specimen of Archaeopteryx was announced in 1861, only two years after Charles Darwin published On the Origin of Species, and it became a key piece of evidence in the debate over evolution.

*Specifications: CLASS: Aves ORDER: Archaeopterygiformes FAMILY: Archaeopterygidae Origin: Solnhofen, Germany *

Skull Length: 5 cm (2.0 in)

Collections: Fossil Replicas, Skull & Skeletons

Category: Skulls

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5.5" Black Megalodon Tooth Replica with Serrations - dinosaursrocksuperstore

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5.5" Black Megalodon Tooth Replica with Serrations $29.99

5.5" Black Megalodon Tooth Replica with Serrations

$29.99

Each tooth is about 5.5 inches long and is a cast of a genuine Megalodon tooth. These are NOT genuine megalodon teeth. These replicas are nearly perfect and would be a great addition to any collection. Each tooth has full serrations and amazing detail. Made of sturdy fiberglass and resin. Great classroom resource or shark lover collectible.

Length:5.5in. 4.6wide.

Megaldon Shark (Carcharocles megalodon):
- Megalodon was one of the largest predators to ever exist on Earth, with estimates suggesting it could reach lengths of up to 82 feet (25 meters) or more.
- It lived approximately 23 to 3.6 million years ago, during the Cenozoic Era.
- Megalodon was a carnivorous shark that primarily hunted large marine mammals, such as whales.
- Its massive jaws contained rows of serrated teeth, capable of slicing through thick blubber and bone.
- The extinction of Megalodon is still a subject of debate among scientists, but it is believed to have disappeared around 3.6 million years ago.
Megalodon Shark Teeth:
- Megalodon teeth are among the largest and most impressive fossilized shark teeth ever discovered, some exceeding 7 inches (18 centimeters) in length.
- These teeth have distinct serrations on their edges, which helped Megalodon efficiently grasp and cut into its prey.
- Fossilized Megalodon teeth provide valuable insights into the size and biology of this prehistoric shark.
- They are often collected by fossil enthusiasts and researchers, with some specimens revealing clues about Megalodon's age, diet, and distribution.
- Megalodon teeth are highly sought after by collectors and can be found in various sizes and conditions, making them popular artifacts in the world of paleontology and fossil collecting.