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Yi is a genus of scansoriopterygid dinosaur from the Late Jurassic of China.Its only species, Yi qi (Mandarin pronunciation: [î tɕʰǐ]; from Chinese: 翼; pinyin: yì; lit. 'wing' and 奇; qí; 'strange'), is known from a single fossil specimen of an adult individual found in Middle or Late Jurassic Tiaojishan Formation of Hebei, China, approximately 159 million years ago.
Remains of hundreds of individuals, including juveniles, eggs and nests, have been found at a single site [56] Malefica: 2022 Aguja Formation (Late Cretaceous, Campanian) United States ( Texas) Its discovery suggests a greater diversity of basal hadrosaurids than previously thought Maraapunisaurus: 2018 Morrison Formation (Late Jurassic ...
Egg Mountain site [Note 3] Two Medicine Formation: Cretaceous (Campanian) North America: US: Montana: Dinosaurs, particularly eggs and young Wheeler Amphitheater in Millard County, Utah [Note 2] Wheeler Shale: Cambrian: North America: US: Utah: Trilobites [Note 1] Woodbine, Texas [Note 2] Arlington Archosaur Site [Note 3] Woodbine Formation ...
Extinction Date Probable causes [2] Quaternary: Holocene extinction: c. 10,000 BC – Ongoing: Humans [3] Quaternary extinction event: 640,000, 74,000, and 13,000 years ago: Unknown; may include climate changes, massive volcanic eruptions and Humans (largely by human overhunting) [4] [5] [6] Neogene: Pliocene–Pleistocene boundary extinction: 2 Ma
Fossilized Dinosaur eggs displayed at Indroda Dinosaur and Fossil Park. This timeline of egg fossils research is a chronologically ordered list of important discoveries, controversies of interpretation, taxonomic revisions, and cultural portrayals of egg fossils. Humans have encountered egg fossils for thousands of years. In Stone Age Mongolia, local peoples fashioned fossil dinosaur eggshell ...
Despite the world's last captive thylacine dying in 1936, the secretive animal wasn't declared extinct until 1986. More recently in 2007 the Baiji dolphin , a rare river dolphin native to China ...
Lindworm eggs are said to be laid under the bark of linden trees (Swedish: lind). Once hatched, lindworms slither away and make a home in a pile of rocks. [1] When fully grown, they can become extremely long. To counter this, during hunting they swallow their own tails to become a wheel and roll at extremely high speeds to pursue prey.
Philip Kerourio debunked Erben and others' suggestion that an increase in the incidence of pathological eggs in dinosaurs led to their extinction. He found that only 0.5–2.5% of eggs in the area Erben and the others studied had multiple shell layers and observed no evidence that these pathologies became more common through the Late Cretaceous ...