See purple-red sandstone layers in the fossil pieces retained, Dong initially that this is pterosaur fossil.

看到那層紫紅色砂巖中留存的化石殘片超碰97人人摸人人操人人看，董枝明初步認(rèn)定這是翼龍化石久久aa毛片免费播放。

Instead, he says a pterosaur used all four limbs, leapfrogging forward on its knuckles, to propel itself into the air.

相反全黄a一级毛片，他說(shuō)翼龍使用它所有的四肢向前跑動(dòng)久久精品亚洲精品无码白，從而使自己飛到空中免费看毛片的网址。

Darwinopterus is a pterosaur, a member of the group of reptiles that soared above the landscape for much of the Mesozoic era.

Darwinopterus 是一只翼龍成人小蝌蚪视频破解网站，這是大多數(shù)時(shí)間翱翔在中生代天空中的一類爬行動(dòng)物。

What bird it is not, nor is any other animal, it isyi yi si qian wan nian living in a dinosaur before - pterosaur.

它不是什么鳥(niǎo)一级二级性爱视频，也不是別的什么動(dòng)物97视频免费在线，它就是生活在一億四千萬(wàn)年前的恐龍的一種——翼龍。

A researcher at the University of Portsmouth has identified a new species of pterosaur, the largest of its kind to ever be found. It represents an entirely new genus of these flying reptiles that ruled the skies 115 million years ago.

Portsmouth大學(xué)近期的研究報(bào)告指出在线不卡精品，已發(fā)現(xiàn)目前世界上最大型的翼龍生物種哟色网站，這也代表著這類型的爬蟲(chóng)類動(dòng)物早在1億1千五百萬(wàn)年前曾經(jīng)主宰整個(gè)天空。

When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal's body.

當(dāng)翼龍爬行或者保持靜止時(shí)人人操人人干com，第4個(gè)指以及和它一起的翅膀只能通過(guò)身體兩側(cè)的延伸的倒置的 V 型來(lái)向上張開(kāi)免费在线观看黄色级视频。

At that time, the pterosaur's head is still hidden in sandstone, the exposed bones of the trunk 1.07 meters field, there are two wings of a long and tortuous.

當(dāng)時(shí)，翼龍的頭部仍藏在砂巖之中色影库，顯露出來(lái)的的軀干骨骼場(chǎng)1.07米久久免费看黄A级毛片美国，有長(zhǎng)而曲折的兩翼。

Research of this area was focused on the relation of sedimentary basin stratigraphy and fossil egg succession in the sediments. Studies on pterosaur embryo contained in fossil egg; the first attempt to get DNA from fossil eggs by using molecular biology method are examples of this progress.

這期間的研究更注重于解決盆地地層與蛋化石演化序列間的聯(lián)系欧美第1页；開(kāi)展了翼龍化石胚胎學(xué)研究美女脱光黄色网站；通過(guò)分子古生物學(xué)分析，嘗試了獲取古代DNA的方法欧美一级牲交免费；河南西峽恐龍蛋化石博物館的建立亚洲熟妇无码一区，成為展示這一階段進(jìn)展的突出標(biāo)志。

Gregory Paul, in a 1989 article, compared known impacts and super eruptions of the Mesozoic with radiations of the major pterosaur, dinosaur, and bird groups to see if a pattern could be identified.

格雷戈里·保羅在1989年發(fā)表的一篇文章里国产性交A级视频，比較了當(dāng)時(shí)已知的中生代的撞擊與火山活動(dòng)欧美大黑帍在线播放视频，用發(fā)光法測(cè)定了翼龍、恐龍和鳥(niǎo)類種群毛片在线播放网，試圖找出一個(gè)固定的模式国产在线无码精品麻豆青青。

The smallest pterosaur was the size of a sparrow, while Quetzalcoatlus -- named after the Aztec god -- had a wingspan of more than 40 feet, making it the largest flying creature ever.

體型最小的翼龍和麻雀一樣袖珍，而羽蛇神--根據(jù)阿芝臺(tái)客神命名--雙翼展開(kāi)超過(guò)40英尺www色色，讓它成為史上最大的飛行動(dòng)物无码在线观看网址。