It appears in the fossil record around 30 million years ago and may be the earliest member of the second great subfamily, the Borophaginae, the bone-crushers.
它出现在大约 3000 万年前的化石记录中,可能是第二大亚科 Borophaginae(碎骨动物)的最早成员。
单词 | Borophaginae |
释义 |
Borophaginae
原声例句
PBS地球-动物趣闻 It appears in the fossil record around 30 million years ago and may be the earliest member of the second great subfamily, the Borophaginae, the bone-crushers. 它出现在大约 3000 万年前的化石记录中,可能是第二大亚科 Borophaginae(碎骨动物)的最早成员。
中文百科
恐犬亚科![]() 恐犬亚科(学名:Borophaginae)是已灭绝一类犬科,是北美洲的特有种,生存于4000-250万年前的渐新世至上新世。 恐犬亚科是从古犬亚科演化而来,体型上更为大型,一些恐犬亚科像现今的狮般大,有些则像浣熊或郊狼。牠们占有新生代北美洲多个生态位,由细小的杂食性至强壮的肉食性都有。 恐犬亚科一般都有强壮及像鬣狗的牙齿及颚骨,而且化石很丰富及广泛分布。牠们有可能是生态系统中的顶级掠食者。种系发生学显示恐犬亚科是高度多样化的。
英语百科
Borophaginae 恐犬亚科![]() ![]() ![]() ![]() The subfamily Borophaginae is an extinct group of canids called "bone-crushing dogs" that were endemic to North America during the Oligocene to Pliocene and lived roughly 36—2.5 million years ago and existing for about 33.5 million years. |
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