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A piece of fossil sponge (海绵) that formed during the early Cambrian period was recently discovered in Changde, Hunan Province.
The 【小题1】 (discover) fossil sponge can date back to 540 million years ago. It ranges around 4 centimeters in 【小题2】 (high) and 3.5 centimeters in width. Paleontologist (古生物学家) Zou Hesi told the Global Times that the size is giant for a sponge from that period of time.
“Sponges become bigger and bigger over time; another fossil piece 【小题3】 (date) back to around 300 million years ago was also recently discovered in Ireland, for example. It was about 50 centimeters,” Zou told the Global Times. Found near the Cliffs of Moher, the piece 【小题4】 (name) as “Cyathophycus balori”. It is so far the largest known fossil sponge in the world.
【小题5】 4-centimeter Chinese piece was unearthed 【小题6】 (unexpected) during a field survey that local researchers were conducting in the Taoyuan District, Changde. Tong Guanghui, a research fellow at the Hunan Museum of Geology, 【小题7】 (tell) the media that the team found a piece of rock on their way 【小题8】 research destination in the town of Sanyanggang.
“So we stopped, and used a geological hammer 【小题9】 (examine) the piece. It was unearthed in such a complete condition, 【小题10】 made us all thrilled about the discovery,” said Tong.