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Paralititan
Paralititan stromeri was a giant titanosaurian sauropod dinosaur discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt. The fossil represents the first tetrapod reported ... > more -
Pelycosaur
The pelycosaurs were smallish to large (up to 3 meters or more) primitive Late Paleozoic synapsid reptiles. They appeared during the Late Carboniferous and reached their acme in the early part of the ... > more -
Amarna letters
The designation Amarna letters (sometimes "Amarna correspondence") denotes an archive of correspondence, mostly diplomatic, between the Egyptian administration and its representatives in Canaan and ... > more -
Crust (geology)
In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. ... > more -
Rosetta Stone
The Rosetta Stone is a dark grey-pinkish granite stone (often incorrectly identified as basalt) with writing on it in two languages, Egyptian and Greek, using three scripts, Hieroglyphic, Demotic ... > more -
Permian-Triassic extinction event
The Permian-Triassic (P-T or PT) extinction event, sometimes informally called the Great Dying, was an extinction event that occurred approximately 251.0 million years ago (mya), forming the boundary ... > more -
Triceratops
Triceratops, meaning "three-horned face", because it had three horns was a ceratopsid herbivorous dinosaur genus from the Latest Cretaceous period of what is now North America. It lived at around the ... > more
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