Information om | Engelska ordet ALVAREZSAURS

Exempel på hur man kan använda ALVAREZSAURS i en mening

• Its describers questioned the traditional placement of alvarezsaurs in Theropoda, instead suggesting they were ornithischians, but this has not been accepted since.
• They found that the support for the placement of Haplocheirus within alvarezsaurs and within compsognathids was roughly equivalent to the support values of the trees which placed it in ornithomimosaurs.
• The basalmost and oldest alvarezsauroid of the Chinese alvarezsaurs is from the Shishugou Formation in Xinjiang (earliest Late Jurassic).
• The exact geological age of the Qiupa Formation is unknown, but it probably dates to the Late Cretaceous based on the presence of oviraptorids (Yulong), dromaeosaurids (Luanchuanraptor), ornithomimids (Qiupalong), alvarezsaurs (Qiupanykus) and other, undescribed, derived dinosaur specimens.
• Arriagadoolithids, like elongatoolithids, prismatoolithids, and Continuoolithus, are laid in pairs, which is interpreted as evidence that oviraptorosaurs, troodontids, and alvarezsaurs had two functioning oviducts, unlike birds which have only one.

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