Spreite

Spreite (or spreiten in German) are tabular, curved laminae that are characteristic of certain trace fossils. They are formed by invertebrate organisms tunneling back and forth through sediment in search of food. The organism moves just enough on each back-and-forth pass so that it avoids reworking a previously tunneled area, thereby ensuring that it only makes feeding passes through fresh, unworked sediment.

单词	Spreite
释义	Spreite 英语百科 Spreite Spreite (or spreiten in German) are tabular, curved laminae that are characteristic of certain trace fossils. They are formed by invertebrate organisms tunneling back and forth through sediment in search of food. The organism moves just enough on each back-and-forth pass so that it avoids reworking a previously tunneled area, thereby ensuring that it only makes feeding passes through fresh, unworked sediment.
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