It was the age of weird fishes and plated sea lilies.

那是奇怪的鱼和镀金海百合的时代。

And it kinda looked like a flipped-over stalkless sea lily.

它看起来有点像翻过来的无柄海百合。

Either way, the Paleozoic Era continued to be dominated by the crinoids and other echinoderms.

无论哪种方式，古生代继续由海百合和其他棘皮物统治。

Paleontologists wonder whether the ability to move around might've helped starfishes fare better than the stationary crinoids did.

古生物学家想知道四处移的能力是否比静止的海百合更能帮助海星生存。

Cantabrigiaster had the thick arms of a starfish but, like sea lilies, lacked small hard plates along the edges of its arms.

Cantabrigiaster 有海星样粗的手臂，但像海百合样， 手臂边缘没有小的硬板。

So, the first starfish may have originated from a sea lily that faceplanted, putting its mouth down on the seafloor.

， 只海星可能起源于种面朝下的海百合，将嘴巴放在海底。

If anything, the eocrinoids and crinoids with stalks were moving away from the low-profile body plan of a starfish.

如果说有什么不同的话，那就是带有茎的海百合和海百合正在远离海星低调的身体计划。

It looks like some of the crinoids might've taken a different approach to feeding - instead of staying face-up suspension feeders, they went face-down.

看起来有些海百合可能采取了不同的进食方式——它们不再是面朝上的悬浮式喂食器，而是面朝下。

Modern starfishes move using their tube feet in a way that's similar to what crinoids do to waft food into their mouths.

现代海星使用管脚移，其方式类似于海百合将食物送入嘴中的方式。

Crinoids became the most abundant echinoderms of the Ordovician, and some were the ancestors of today's stalkless feather stars and stalked sea lilies.

海百合成为奥陶纪最丰富的棘皮物，有些是今天无柄羽星和有柄海百合的祖先。

And crinoids are still around, too, but their species number in the 600s, in contrast to the 6000 known species that've lived throughout Earth's history.

海百合也仍然存在，但它们的物种数量只有 600 种，而历史上已知的物种数量为 6000 种。

Including the similar-looking and closely related group - the crinoids, also called sea lilies - which showed up and diversified into many species with different suspension-feeding body types.

包括外观相似且密切相关的群体——海百合，也称为海百合——它们出现并多样化为许多具有不同悬浮喂养体型的物种。

Sea levels were high, and the continents were surrounded by vast, shallow seas, full of exotic creatures like rugose corals, crinoids, and jawless fish.

海平面很高，大陆被广阔的浅海包围，充满了奇异的生物，如长皱纹珊瑚、海百合和无颌鱼。

But starfishes and their skinny-armed cousins called the brittle stars made it through, along with a few crinoids, sea cucumbers, and sea urchins – the groups we still see today.

但是海星和它们被称为海蛇尾的瘦臂表亲以及些海百合、海参和海胆——这些我们今天仍然能看到的群体——成功了。

But we still need more fossil evidence to help us figure out whether Cantabrigiaster really was a transitional animal between crinoids and sea stars or not.

但是我们仍然需要更多的化石证据来帮助我们弄清楚 Cantabrigiaster 是否真的是海百合和海星之间的过渡​​物。

I explain it on two grounds, I replied. In the first place, because vertical currents, which are caused by differences in the water's salinity and density, can produce enough motion to sustain the rudimentary lifestyles of sea lilies and starfish.

我用两个理由来解释，我回答，，为那些上下垂直往来的水流，由海水的不同咸度和不同密度决定，发生种运，足以维持海百合和海星类的原始基本生活。

So, as odd as the starfish body plan seems, something about it was successful -- from their ancient bilateral ancestors, to the radial crinoids with their upward-facing arms, to the predatory, downward-facing starfish.

， 尽管海星的身体计划看起来很奇怪，但它的某些方面是成功的——从它们古老的双侧祖先，到手臂朝上的放射状海百合，再到捕食性的、面朝下的海星。