Marie Dlesková

Marie Dlesková

Marie Dlesková
More ideas from Marie
Jaekelopterus

To-scale model of the largest diplopod (millipede-esque creatures, although scientists can't verify if this was a millipede) known to man, which lived on Earth about 430 million years ago and is the oldest land animal discovered to date.

Castles, Shell, Shells, Chateaus, Forts

Helicoprion is a long-lived genus of extinct, shark-like[2] eugeneodontid holocephalid fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls." Helicoprion first arose in the oceans of the late Carboniferous 310 million years ago, survived the Permian–Triassic extinction event, and eventually became extinct during the Early Triassic, 250 million years ago. This fossilized jaw shows the spiral dentures.

Helicoprion is a long-lived genus of extinct, eugeneodontid holocephalid fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls." This fossilized jaw shows the spiral dentures.