Protoceratopsidae Pronunciation: PROH-to-SEH-ruh-TOP-sih-day Authors: Granger and Gregory Year: 1923 Meaning: First horn faces (see etymology) Locomotion: Bipedal (two legs) and Quadrupedal (four legs) Synonyms: Protoceratopidae (Steel 1969) [Sereno, 2005]Definition The most inclusive ...
The dinosaurs wentextinctabout 65 million years ago, at the end of theCretaceous period, which was a time of high volcanic andtectonic activity. There are many theories why the extinction occurred. The most widely accepted theory is that an asteroid impact caused major climate changes to which ...
As a group, Coronosauria hasn't really caught on, mainly because all neoceratopsians that aren't bagaceratopids, protoceratopsids, ceratopsids, or leptoceratopsids are, well, just neoceratopsians. Etymology Coronosauria is derived from the Latin "corÅna" (crown, garland or wreath...
Sexual dimorphism is the difference in morphology between male and female members of the same species. Sexual dimorphism includes differences in size, coloration, or body structure between the sexes. For example, the male northern cardinal has a bright red plumage while the female has a duller plu...
Relationships Ceratopsia Psittacosauridae Neoceratopsia Leptoceratopsidae Bagaceratopsidae Protoceratopsidae Ceratopsoidea Ceratopsidae Centrosaurinae Chasmosaurinae References A revision of the Ceratopsia or horned dinosaurs
Ceratopsidae is derived from the Greek "keras" (horn), "ops" (face) and "-idae" (family). Relationships Ceratopsia Psittacosauridae Neoceratopsia Leptoceratopsidae Bagaceratopsidae Protoceratopsidae Ceratopsoidea Ceratopsidae Centrosaurinae Chasmosaurinae References • Richard Swan...
Neoceratopsia is derived from the Greek "neos" (new), "ceras" (horned) and "ops" (face). Relationships Ceratopsia Psittacosauridae Neoceratopsia Leptoceratopsidae Bagaceratopsidae Protoceratopsidae Ceratopsoidea Ceratopsidae Centrosaurinae ...
Click here to view Dinochecker's A-Z list of Bagaceratopsids. Relationships Ceratopsia Psittacosauridae Neoceratopsia Leptoceratopsidae Bagaceratopsidae Protoceratopsidae Ceratopsoidea Ceratopsidae Centrosaurinae Chasmosaurinae References • Vladimir Alifanov (2003) "Two new dinosaurs ...