What is the fine-grained topic of the following text: A team of scientists financed by Petroleum Development Oman, NASA’s Exobiology Program and its Astrobiology Institute, the National Science Foundation and the Agouron Institute and led by UCR scientist Gordon Love discovered the oldest evidence of animals in the fossil record in sedimentary rocks of south Oman. Only return the topic.
Discovery of the oldest evidence of animals in the fossil record in south Oman.