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Saurischia: Quiz

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Question 1: All ________ dinosaurs (the theropods) are saurischians, as are one of the two primary lineages of herbivorous dinosaurs, the sauropodomorphs.
PredationHypercarnivoreCarnivoreHerbivore

Question 2: Avians (modern birds), as direct descendants of one group of saurischian dinosaurs, are considered to be a sub-________ of saurischian dinosaurs in phylogenetic classification.
Ghost lineageCladePhylogeneticsComputational phylogenetics

Question 3: [5] However, it was later found that ________ were actually an unusual type of herbivorous theropod saurischians closely related to birds, and the Phytodinosauria hypothesis fell out of favor.
TherizinosauridaeCoelurosauriaOviraptorosauriaTherizinosaur

Question 4: He termed saurischians "lizard-hipped" dinosaurs because they retained the ancestral hip anatomy also found in modern ________.
ReptileSquamataLizardSnake

Question 5: The ornithischian hip structure is superficially similar to that of ________, which led Seeley to name them "bird-hipped dinosaurs," though he did not propose any specific relationship with birds.
Modern birdsArchaeopteryxEnantiornithesBird

Question 6: This is referred to as the ________.
Cretaceous–Tertiary extinction eventK–T boundaryDinosaurGeologic time scale

Question 7: The ornithischians' ________ is arranged with the pubis rotated backward, parallel with the ischium, often also with a forward-pointing process, giving a four-pronged structure.
TorsoBonePelvisHuman leg

Question 8: At the end of the ________ Period, all non-avian saurischians became extinct.
Geologic time scaleDinosaurCretaceousCretaceous–Tertiary extinction event

Question 9: The following ________ is adapted from Weishampel et al., 2004.
Computational phylogeneticsCladogramPhylogenetic treePhylogenetics

Question 10: In this example of ________, birds developed hips oriented similar to the earlier ornithischian hip anatomy, in both cases possibly as an adaptation to a herbivorous or omnivorous diet.
Convergent evolutionPterosaurParallel evolutionCountershading







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