50-million-year-old katydid fossil reveals muscles, digestive tract, glands and a testicle

50 million years ago in what is now northwestern Colorado, a katydid died, sank to the bottom of a lake and was quickly buried in fine sediments, where it remained until its compressed fossil was recovered in recent years. When researchers examined the fossil under a microscope, they saw that not only had many of the insect’s hard structures been preserved in the compressed shale, so had several internal organs and tissues, which are not normally fossilized.


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Source: ScienceDaily