Avemetatarsalia

Avemetatarsalia (meaning "bird metatarsals") is a clade name established by British palaeontologist Michael Benton in 1999 for all crown group archosaurs that are closer to birds than to crocodiles. It includes a similarly defined subgroup, Ornithodira. An alternate name is Pan-Aves, or "all birds", in reference to its definition containing all animals, living or extinct, which are more closely related to birds than to crocodiles.

单词	Ornithodirans
释义	Ornithodirans 原声例句 PBS地球-动物趣闻 Several other early ornithodirans have also been interpreted as small, jerboa-like animals. 其他几种早期的鸟类也被解释为类似跳鼠的小型动物。 PBS地球-动物趣闻 A little evolutionary pressure from another group related to those early Ornithodirans... birds. 来自另一个与那些早期鸟类相关的群体的一点进化压力......鸟类。英语百科 Avemetatarsalia Avemetatarsalia (meaning "bird metatarsals") is a clade name established by British palaeontologist Michael Benton in 1999 for all crown group archosaurs that are closer to birds than to crocodiles. It includes a similarly defined subgroup, Ornithodira. An alternate name is Pan-Aves, or "all birds", in reference to its definition containing all animals, living or extinct, which are more closely related to birds than to crocodiles.
随便看	total carried down total case depth total cataract total catch total cavopulmonary connection total cell count total cells per ejaculate total cellular receptor pool total cellular score total cellulose Total central choroidal atrophy total cerebral blood flow total cerebral ischemia total chain yield total channel storage total characteristic total characteristic curve total characteristic detection efficiency total charge total charge number total charge of lightning current total charges total check total chemical consumption total chemicals

Ornithodirans

Avemetatarsalia