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Lepidodendron imprint fossil in the Pennsylvanian rocks of eastern Ohio…

Lepidodendron imprint fossil in the Pennsylvanian rocks of eastern Ohio…

CsfAL9fXgAQmiQN.jpg (1000×790)

CsfAL9fXgAQmiQN.jpg (1000×790)

Paleozoic Earth - A Carboniferous forest of Midwestern North America 350 million years ago featuring Lepidodendron

Paleozoic Earth - A Carboniferous forest of Midwestern North America 350 million years ago featuring Lepidodendron

Incredibly geometric fossilized tree. Lepidodendron PAMuseum.jpg

Incredibly geometric fossilized tree. Lepidodendron PAMuseum.jpg

Lepidodendron fossil.

Lepidodendron fossil.

The International Organization of Paleobotany

The International Organization of Paleobotany

'Reconstructions of Lepidodendron (far left, Late Carboniferous, ~50 m tall), Sigillaria (left, Late Carboniferous, ~40 m,), Valmeyerodendron (middle top, Early Carboniferous, 0.6 m), Protolepidodendron (top right, Middle Devonian, 0.2 m), Chaloneria (bottom middle, Late Carboniferous, 2 m), Pleuromeia (bottom right, Triassic, 2 m) and Isoetes (bottom far right, extant, 30 cm). '

'Reconstructions of Lepidodendron (far left, Late Carboniferous, ~50 m tall), Sigillaria (left, Late Carboniferous, ~40 m,), Valmeyerodendron (middle top, Early Carboniferous, 0.6 m), Protolepidodendron (top right, Middle Devonian, 0.2 m), Chaloneria (bottom middle, Late Carboniferous, 2 m), Pleuromeia (bottom right, Triassic, 2 m) and Isoetes (bottom far right, extant, 30 cm). '

Arbres lycopodes

Arbres lycopodes

During the Miocene seen here 20 million years ago the Earth gradually cooled and ice caps formed over Greenland and Antarctica. Grasslands spread across the globe leading to diversification of grazing animals like camels horses and other hoofed mammals. Sperm whales and baleen whales or whales with large filters to eat plankton first arose during the Miocene. And the first hominins the group that includes modern humans originated in Africa at this time. #science #geology #paleontology…

During the Miocene seen here 20 million years ago the Earth gradually cooled and ice caps formed over Greenland and Antarctica. Grasslands spread across the globe leading to diversification of grazing animals like camels horses and other hoofed mammals. Sperm whales and baleen whales or whales with large filters to eat plankton first arose during the Miocene. And the first hominins the group that includes modern humans originated in Africa at this time. #science #geology #paleontology…

The Late Jurassic seen here 150 million years ago gave us some of the most…

The Late Jurassic seen here 150 million years ago gave us some of the most…