恐龍卡第 1693 張，共 2 027 張

Soroavisaurus

名字的意思： “sister to Avisaurus”1

吃：肉早期鳥類白堊紀晚期

Soroavisaurus was a bird that lived about 71 to 69 million years ago in what is now Argentina. It was about as long as a ruler (40 cm) and used its sharp, curved talons to catch and carry prey, just like a hawk or eagle does today.1

生存年代

72 到 66 百萬年前4

白堊紀晚期

化石發現地

Lecho Formation, El Brete, Salta Province, Argentina1

長度

0.4 m (1.3 ft)1

體重

1.55 kg 到 7.25 kg (3 到 16 lb)3

高度

0.211 到 0.35 m (0.7 到 1.1 ft)3

最高速度

時速約 32 公里（20 英里）

飛行, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多大？

牠有多長？

牠有多高？

牠有多重？

跟 2 隻家貓一樣重

跟 2 根香蕉頭尾相接一樣長大約跟一隻家貓一樣重跟 60 根香蕉一樣重跟 12 塊積木排成一排一樣長小到能從椅子底下走過去能在 12 秒內飛越一整座足球場

Soroavisaurus 跟「你」比起來有多大？

只是在你的瀏覽器裡算算數學。什麼都不會被儲存或傳送出去。

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Soroavisaurus 時速約 32 公里 (20 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Soroavisaurus is known only from leg bones, especially a fused bone called the tarsometatarsus. No wing bones have been found, so its wingspan is unknown.1

The tarsometatarsus of Soroavisaurus has a gap between two of its metatarsal bones that is not seen in any other enantiornithine bird.1

Soroavisaurus lived in a warm, humid coastal plain with tropical forests, ponds and lagoons.1

It shared its home with other enantiornithine birds like Lectavis and Yungavolucris, as well as the dinosaurs Noasaurus and Saltasaurus.1

Some scientists think Soroavisaurus might be the same animal as Enantiornis or Martinavis, which are known from wing bones found at the same site. But it is hard to be sure.1

The name Soroavisaurus means 'sister to Avisaurus' because scientists thought it was closely related to that other fossil bird.1

Soroavisaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Soroavisaurus 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

給恐龍專家

學名: Soroavisaurus
命名者: Chiappe 19934
類群: 早期鳥類
科 / 演化支: Avisauridae4
分類: Theropoda > Avialae4
岩石的年代: 72 到 66 百萬年 (Maastrichtian)4
岩層: Lecho4
國家: 阿根廷4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Soroavisaurus was named in 1993 by Argentine paleontologist Luis M. Chiappe. He studied leg bones collected from El Brete, Argentina, and named three new bird species, including Soroavisaurus australis.1
仍有爭議: Scientists are not sure whether Soroavisaurus is really a separate species or if it is the same animal as Enantiornis or Martinavis, which are known only from wing bones from the same place.1