true
Fossils of placoderm fishes, and trilobites are commonly found in Devonian-aged marine strata throughout the world.
0.2 - 32 inches
Short spans of geologic time
It largely depends on the fossil. Some dinosaur fossils (triceratops) are very common, and we know exactly what it's skeletal physiology was. Some dinosaurs are extrapolated as to size, shape and appearance by virtue of one bone, or in extreme cases, one tooth, because that's all scientists have. Some fossils are extremely common, such as trilobites, which roamed the shallow ocean bottoms in huge herds 500 million to 250 million years ago - you can buy authentic trilobite fossils in many gift and curio shops. As with so many things: It just depends!
no they are not
Trilobites are common fossils throughout the Paleozoic.
Yes, they normally are fairly common. Except, It is not so common to find complete ones.
Fossils of placoderm fishes, and trilobites are commonly found in Devonian-aged marine strata throughout the world.
0.2 - 32 inches
Short spans of geologic time
The common dolphin is classified in the kingdom Animalia.*For more information about common dolphins, see the related link below.
No. Dinosaurs and trilobites are completely different. Trilobites were arthropods in the same phylum as insects and crustaceans. They went extinct before the first dinosaurs appeared. Dinosaurs are vertebrates and are technically classified as reptiles, though they had more in common with birds.
The common dolphin is classified in the kingdom Animalia.*For more information about common dolphins, see the related link below.
bottlenose dolphins
bottlenose dolphins
No, common dolphins do not migrate like other species of dolphins do. However, they will move locations if they are in search of food.
It largely depends on the fossil. Some dinosaur fossils (triceratops) are very common, and we know exactly what it's skeletal physiology was. Some dinosaurs are extrapolated as to size, shape and appearance by virtue of one bone, or in extreme cases, one tooth, because that's all scientists have. Some fossils are extremely common, such as trilobites, which roamed the shallow ocean bottoms in huge herds 500 million to 250 million years ago - you can buy authentic trilobite fossils in many gift and curio shops. As with so many things: It just depends!