Question

A bizarre Jurassic maniraptoran from China with elongate ribbon-like feathersRecent coelurosaurian discoveries have greatly enriched our knowledge of the transition fromdinosaurs to birds, but all reported taxa close to this transition are from relatively well knowncoelurosaurian groups. Here we report a new basal avialan, Epidexipteryx hui gen. et sp. nov.,from the Middle to Late Jurassic of Inner Mongolia, China. This new species is characterizedby an unexpected combination of characters seen in several different theropod groups,particularly the Oviraptorosauria. Phylogenetic analysis shows it to be the sister taxon toEpidendrosaurus, forming a new clade atthe base of Avialae. Epidexipteryx also possesses twopairs of elongate ribbon-like tail feathers, and its limbs lack contour feathersfor flight. This finding shows that a member of the avialan lineage experimented withintegumentary ornamentation as early as the Middle to Late Jurassic, and provides furtherevidence relating to this aspect of the transition from non-avian theropods to birds.Fucheng Zhang. 'A bizarre Jurassic maniraptoran from China with elongate ribbon-like feathers". NatureWhat is the contribution of the coelurosaurian discovery?A) A new dinosaur speciesB) The knowledge of the transition from dinosaurs to birdsC) The interaction between dinosaurs and birdsD) A new theory for dinosaur extinction

#Exani II

Answer 1

Respuesta de: A Bizarre Jurassic Maniraptoran from China.

What is the contribution of the coelurosaurian discovery?

• (Opción B) The knowledge of the transition from dinosaurs to birds.

Presente continuo.

Es un tiempo verbal en que se comunica la acción qué está haciendo el sujeto en el momento; este tiempo verbal responde a la pregunta: ¿qué estás haciendo? Las oraciones en presente continuo se construyen con la siguiente fórmula.

• Fórmula: Pronombre personal + verbo to be + verbo con -ing + complemento.