pelycosaur

/ˌpɛlɪkoʊˈsɔr/

Meanings

noun

合弓纲基干类群，盘龙目 (historically used, though outdated)

Any of a group of basal or primitive Late Paleozoic synapsid amniotes, part of a polyphyletic grade, formerly regarded as order Pelycosauria.

Examples :

"While not technically dinosaurs, the sail-backed Dimetrodon is a well-known example of a pelycosaur. "

虽然严格来说，帆背龙(Dimetrodon) 并不是恐龙，但它是合弓纲基干类群（过去常被称为“盘龙目”）一个广为人知的例子。

Related Words

technically adverb

/ˈtɛknɪkli/

严格来说, 确切地说.

"Technically he was Canadian, but everyone assumed he was American."

严格来说，他是加拿大人，但大家都以为他是美国人。

polyphyletic adjective

/ˌpɑliˌfaɪˈlɛtɪk/ /ˌpɒlɪˌfaɪˈlɛtɪk/

多源的，多源性的

"Calling "warm-blooded animals" a group would be polyphyletic because birds and mammals evolved warm-bloodedness independently, not from a single warm-blooded ancestor they both share. "

如果把“恒温动物”称为一个类群，那将是多源的，因为鸟类和哺乳动物是各自独立进化出恒温性的，而不是从一个它们共同拥有的恒温祖先进化而来。

regarded verb

/ɹɪˈɡɑːdɪd/ /ɹɪˈɡɑɹdɪd/

看待，视为

"She regarded us warily."

她小心翼翼地观察着我们。

outdated adjective

/aʊtˈdeɪtɪd/

过时的，落伍的。

"His outdated wordprocessing software could not read the files I sent."

他过时的文字处理软件打不开我发的文件。

formerly adverb

/ˈfɔːməli/ /ˈfɔɹmɚli/

以前，先前.

"My formerly quiet neighborhood is now very busy with new construction. "

我以前安静的社区现在因为新的建筑工程变得非常繁忙。

dimetrodon noun

/daɪˈmɛtrədɑn/ /daɪˈmiːtrədɑn/

Dimetrodon属，二叠纪的肉食性合弓纲动物

"The museum display featured a skeleton of a dimetrodon, a prehistoric animal with a large sail on its back. "

博物馆的展览展出了一具双齿兽的骨骼，这是一种背上长着巨大帆状物的史前动物。(Bówùguǎn de zhǎnlǎn zhǎnchū le yíjù Shuāngchǐshòu de gǔgé, zhè shì yīzhǒng bèi shàng zhǎngzhe jùdà fānzhuàngwù de shǐqián dòngwù.)