hadrosauridae การใช้

• The majority of dinosaur skin impressions is referable to the Hadrosauridae.
• They placed their new genus in Hadrosauridae, as the earliest known hadrosaurid.
• Two years previous, Friedrich von Huene separated Saurolophinae from Hadrosauridae, naming Saurolophidae.
• A cladistic analysis indicated that it was closely related to the Hadrosauridae " sensu"
• The most notable difference between the Hadrosauridae and the Iguanodontidae are in the bones of their jaw.
• They also found cladistic support for the traditional division of Hadrosauridae into the subfamilies Hadrosaurinae and Lambeosaurinae.
• However, a number of studies demonstrated that Iguanodontidae as traditionally defined is paraphyletic with respect to Hadrosauridae.
• Today it is seen as a basal member of the Hadrosauroidea, relatively closely related to the Hadrosauridae.
• Later analyses showed that " Eolambia " was a basal member of the Hadrosauroidea, outside of the Hadrosauridae.
• "Shuangmiaosaurus " was originally considered a basal member of the Hadrosauroidea, one closely related to the Hadrosauridae.
• Therefore, the traditional Hadrosaurinae should be treated as before : Hadrosauridae is divided into two clades : Hadrosaurinae and Lambeosaurinae.
• Kirkland originally assigned " Eolambia " to the Hadrosauridae, considering it the basal-most member of the Lambeosaurinae.
• In the past, Iguanodontidae became a repository for any ornithopod that did not belong in either Camptosauridae, Hadrosauridae or Hypsilophodontidae.
• The cladogram below shows " Huehuecanauhtlus " phylogenetic position among other hadrosauroids following this topology ( the relationships within Hadrosauridae are not shown ).
• Hopson ( 1975 ) supported the division of Hadrosauridae into two subfamilies, Hadrosaurinae and Lambeosaurinae, and was first to suspect what modern analyses find.
• Following its description, several studies found it to be less derived than the type species of " Probactrosaurus " in relation to Hadrosauridae.
• Studies of sexual dimorphism in hadrosaurs have generally centred on the distinctive cranial crests of the Hadrosauridae, which would provide a fantastic signal for sexual display.
• The Trachodon mummy belongs within the Hadrosauridae ( " duck-billed dinosaurs " ), a synonym of " Edmontosaurus annectens " by most researchers.
• Exact cladistic analyses resulted in " Tanius " being placed either basal in the Hadrosauroidea, basal in the Hadrosauridae, also dependent on the definition of the latter concept, or in the Hadrosaurinae
• Well-preserved dinosaur footprints & ndash; possibly of Hadrosauridae & ndash; have been found in this formation, as were fossil eggs, stromatolites and the Mesozoic palynomorph " Aquilapollenites ".