pygostyle

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Two chicks near an egg with a white background (poultry, chick, chickens, birds).

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Hemp (Cannabis sativa).

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Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

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Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

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African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

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Battle of the Alamo from "Texas: An Epitome of Texas History from the Filibustering and Revolutionary Eras to the Independence of the Republic, 1897. Texas Revolution, Texas revolt, Texas independence, Texas history.

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illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

pygostyle

anatomy

Learn about this topic in these articles:

birds

In bird: Skeleton
…(caudal) vertebrae and finally the pygostyle, which consists of several fused caudal vertebrae and supports the tail feathers.
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Ichthyornis

In Ichthyornis
…of several fused vertebrae (pygostyle), as did the tails of all but the most primitive birds such as Archaeopteryx. Unlike modern birds, Ichthyornis possessed teeth, which are thought to have been used to hold its prey, manipulate objects, and preen its feathers. The brain of Ichthyornis showed greater development…
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