Phyllograptus

例句：

1. 1. He is a renowned paleontologist who has made significant contributions to the field.
   他是著名的古生物学家，对这一领域做出了重大贡献。
2. 2.The museum hosts regular lectures by paleontologists, attracting many visitors.
   博物馆定期举办由古生物学家主讲的讲座，吸引了许多游客。
3. 3. Paleontologists study the fossils of ancient animals and plants to understand their evolution.
   古生物学家研究古代动物和植物的化石，以了解它们的进化。