德克萨斯州发现已经灭绝的新品种蜥蜴化石-凯发k8官网

德克萨斯州发现已经灭绝的新品种蜥蜴化石
文章来源:未知 文章作者:enread 发布时间:2016-02-22 05:47 字体: [ ] 
(单词翻译:双击或拖选)
researchers have discovered a new species of extinct worm 1 in texas and 2 it the "3 star" lizard. the species -- the first known example of a worm lizard in texas -- offers evidence that texas acted as a subtropical refuge during one of the great cooling periods of the past. a paper describing the new species was published on feb. 18 in the journal of vertebrate paleontology. the species is officially named solastella cookei. solastella is a latinized form of lone star. 
 
"nothing has been called solastella before, which is amazing to me because there are so many fossils from texas. it's the one guy, and it's from the lone star state, so it just seemed to fit," said michelle stocker, a paleontologist who described the extinct 4 while earning her ph.d. at the university of texas at austin's jackson school of geosciences. she is now a research scientist at virginia tech.
 
the second part of the scientific name honors 5 william cook, a professor at midwestern state university in wichita falls, which owns the property where the fossils were collected.
 
worm lizard is the common name for a group of 6 called amphisbaenians, whose long bodies and reduced or absent limbs give them an earthworm-like appearance. the group includes extinct species as well as ones still living today. solastella belonged to a subgroup called rhineuridae, a group with only one living member -- the florida worm lizard. 
 
stocker identified solastella as a new species by 7 fossilized 8 that she 9 in the devil's 10 formation in west texas. she found that solastella lived during the late middle eocene, a 11 period about 40 million years ago, and that its eye 12 was 13 enclosed, a feature lacking in all living amphisbaenians but present in extinct relatives. 
 
the discovery of an amphisbaenian in texas helps bridge the gap between extinct species found in the western interior of the u.s. and the living worm lizard in florida today. it also supports the theory that texas served as a subtropical refuge for species that found it difficult to survive during the cooling climate of the late middle eocene.
 
"what's special about reptiles is that they are ectothermic, or cold-blooded, so they need to maintain their body temperature to the external environment," stocker said. "you can actually get a better sense at what the climate was like from reptiles than from mammals. we were very excited that we not only found solastella at the site, but a whole bunch of other reptiles."


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1 p0ex0     
n.蜥蜴,壁虎
参考例句:
  • a chameleon is a kind of lizard.变色龙是一种蜥蜴。
  • the lizard darted out its tongue at the insect.蜥蜴伸出舌头去吃小昆虫。
2 dubbed     
v.给…起绰号( dub的过去式和过去分词 );把…称为;配音;复制
参考例句:
  • mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。
  • is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的? 来自《简明英汉词典》
3 q0cxl     
adj.孤寂的,单独的;唯一的
参考例句:
  • a lone sea gull flew across the sky.一只孤独的海鸥在空中飞过。
  • she could see a lone figure on the deserted beach.她在空旷的海滩上能看到一个孤独的身影。
4 xbiz7     
n.爬行动物;两栖动物
参考例句:
  • the frog is not a true reptile.青蛙并非真正的爬行动物。
  • so you should not be surprised to see someone keep a reptile as a pet.所以,你不必惊奇有人养了一只爬行动物作为宠物。
5 krtyl     
n.植物学家
参考例句:
  • the botanist introduced a new species of plant to the region.那位植物学家向该地区引入了一种新植物。
  • i had never talked with a botanist before,and i found him fascinating.我从没有接触过植物学那一类的学者,我觉得他说话极有吸引力。
6 45053265723f59bd84cf4af2b15def8e     
n.爬行动物,爬虫( reptile的名词复数 )
参考例句:
  • snakes and crocodiles are both reptiles. 蛇和鳄鱼都是爬行动物。 来自《简明英汉词典》
  • birds, reptiles and insects come from eggs. 鸟类、爬虫及昆虫是卵生的。 来自《现代汉英综合大词典》
7 be408cc8d92ec310bb6260bc127c162b     
v.分析;分析( analyze的现在分词 );分解;解释;对…进行心理分析n.分析
参考例句:
  • analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据,暴露出的问题甚至更大。 来自辞典例句
  • he undoubtedly was not far off the mark in analyzing its predictions. 当然,他对其预测所作的分析倒也八九不离十。 来自辞典例句
8 d44073bc27628272fdd5bac11adb1ab5     
颅骨( skull的名词复数 ); 脑袋; 脑子; 脑瓜
参考例句:
  • one of the women's skulls found exceeds in capacity that of the average man of today. 现已发现的女性颅骨中,其中有一个的脑容量超过了今天的普通男子。
  • we could make a whole plain white with skulls in the moonlight! 我们便能令月光下的平原变白,遍布白色的骷髅!
9 e4d49b43cc52eefcadbac6d2e94bb832     
出土的(考古)
参考例句:
  • many unearthed cultural relics are set forth in the exhibition hall. 展览馆里陈列着许多出土文物。
  • some utensils were in a state of decay when they were unearthed. 有些器皿在出土时已经残破。
10 9rfztv     
n.坟场
参考例句:
  • all the town was drifting toward the graveyard.全镇的人都象流水似地向那坟场涌过去。
  • living next to a graveyard would give me the creeps.居住在墓地旁边会使我毛骨悚然。
11 dg3x9     
adj.地质的
参考例句:
  • the red sea is a geologic continuation of the valley.红海就是一个峡谷在地质上的继续发展。
  • delineation of channels is the first step of geologic evaluation.勾划河道的轮廓是地质解译的第一步。
12 jw9wm     
n.窝,穴,孔,插座,插口
参考例句:
  • he put the electric plug into the socket.他把电插头插入插座。
  • the battery charger plugs into any mains socket.这个电池充电器可以插入任何类型的电源插座。
13 gfuzd     
adv.完全地,全部地,彻底地;充分地
参考例句:
  • the doctor asked me to breathe in,then to breathe out fully.医生让我先吸气,然后全部呼出。
  • they soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
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