Pressed into a piece of rock is the flattened, 47 million-year-old body of a cicada. Measuring about 1 inch (26.5 millimeters) long with a wingspan of 2.7 inches (68.2 millimeters), its fossilized form is nearly intact, with its veined wings spread wide. Scientists recently described the insect as a new genus and species, using this fossil and one other that was nearly as well preserved, from the same site. Even though the specimens are female, their location on the cicada family tree suggests that males of this species could sing as modern cicadas do. Found in Germany decades ago, their presence there reveals that singing cicadas dispersed in Europe millions of years earlier than once thought. The fossils are also the oldest examples of “true” singing cicadas in the family Cicadidae, researchers reported April 29 in the journal Scientific Reports. Most modern cicadas belong to this family, including annual cicadas that appear every summer worldwide, as well as broods of black-bodied and red-eyed periodical cicadas, which emerge from May to June in eastern North America in cycles of 13 or 17 years. Brood XIV, one of the biggest broods, emerges across a dozen US states this year. Cicadas are found on every continent except Antarctica, and there are more than 3,000 species. The fossil record for insects in general is abundant in just a few dozen locations, and while modern cicada species are numerous today, paleontologists have documented only 44 Cicadidae fossils. The earliest definitive fossil of a singing cicada was discovered in Montana and dates from 59 million to 56 million years ago, said lead study author Dr. Hui Jiang, a paleontologist and researcher with the Bonn Institute of Organismic Biology at the University of Bonn in Germany. Its newly described relative is the earliest singing cicada from Europe, Jiang told CNN in an email. Because the body structures of the European fossils were so well preserved, scientists were able to assign the ancient insect to a modern tribe of cicadas called Platypleurini, “which is today primarily distributed in tropical and subtropical regions of sub-Saharan Africa and Asia, but is absent from Europe,” Jiang said. Prior research suggested that this lineage evolved in Africa about 30 million to 25 million years ago and dispersed from there, according to Jiang. “This fossil pushes back the known fossil record of sound-producing cicadas in the tribe Platypleurini by approximately 20 million years, indicating that the diversification of this group occurred much earlier than previously recognized,” the researcher added. The discovery hints that this group of cicadas evolved more slowly than prior estimates from molecular data proposed, said Dr. Conrad Labandeira, a senior research geologist and curator of fossil arthropods at the Smithsonian Museum of Natural History in Washington, DC. “This suggests that older fossils of the Platypleurini are yet to be discovered,” said Labandeira, who was not involved in the research. “Such discoveries would assist in providing better calibrations for determining a more realistic evolutionary rate.” Lake burial Researchers named the cicada Eoplatypleura messelensis. Its name refers to where the specimens were discovered: the Messel Pit in Germany, a rich fossil site dating to the Eocene epoch (57 million to 36 million years ago). Excavated in the 1980s, the fossils have since been in the collection of the Senckenberg Research Institute and Natural History Museum Frankfurt in Germany, said senior study author Dr. Sonja Wedmann, head of Senckenberg’s paleoentomology department. A very deep volcanic lake, with a bottom where no oxygen penetrated, once filled the Messel Pit. That environment created ideal conditions for fossilization, and fine-grain sediments from this former lake bed hold a variety of Eocene life, Wedmann told CNN in an email. “The excellent preservation not only of insects, but of all groups of organisms, is the reason why Messel is an UNESCO world heritage site,” a designation it earned in 1995, Wedmann said. The more complete of the two cicada fossils “is one of the best preserved insects from the Messel pit fossil site,” Wedmann added. “Senckenberg has a collection of over 20,000 fossil insects from Messel, and among these it stands out because of its really beautiful and complete preservation.” In its overall head and body shape, E. messelensis strongly resembles modern cicadas. Its rostrum — a snoutlike mouth — is intact, but closer analysis is needed to tell whether it used the rostrum for feeding on plant tissues called xylem, as most modern cicadas do, Labandeira said. E. messelensis also shows hints of colors and patterns in its wings. This feature camouflages modern cicadas as they cling to tree trunks, and it may have served a similar purpose for E. messelensis, according to Jiang. However, E. messelensis differs from modern cicadas in subtle ways. For example, its forewings are broader and less elongated than those of species alive today, which may have affected how it flew. Would the ancient cicada’s call have sounded like those of its modern relatives? “We can’t know the exact song,” Jiang said. However, based on the cicada’s body shape and placement in the singing cicada group, “it likely produced sounds similar in function to modern cicadas.” When Brood XIV emerges in the billions in the late spring and early summer of 2025, their calls will measure from 90 to 100 decibels — as loud as a subway train. Other types of cicadas produce an even bigger ruckus: Songs of the African cicada Brevisana brevis peak at nearly 107 decibels, about as loud as a jet taking off. The volume of the ancient species’ songs may have been even louder than that, Jiang said. The abdomen of E. messelensis is broader and larger than those of its modern relatives, suggesting that males could have had a larger resonating cavity. This cavity may have amplified sound from the vibrating structures in their abdomens, called tymbals, to produce a louder buzz. “Of course, this is only a hypothesis,” Jiang added. “Future studies on how morphology relates to sound production in modern cicadas will help to test it.” Mindy Weisberger is a science writer and media producer whose work has appeared in Live Science, Scientific American and How It Works magazine.
47 million-year-old bug is the oldest singing cicada fossil from Europe
TruthLens AI Suggested Headline:
"Discovery of 47 Million-Year-Old Cicada Fossil Reveals Early Singing Capabilities in Europe"
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TruthLens AI Summary
A remarkable discovery has been made with the fossilized remains of a cicada dating back 47 million years, unearthed from the Messel Pit in Germany, a UNESCO World Heritage site known for its exceptional fossil preservation. This cicada, named Eoplatypleura messelensis, measures about 1 inch long with a wingspan of 2.7 inches. Despite being female, its classification within the cicada family tree implies that males of this species likely possessed the ability to produce songs similar to those of modern cicadas. This finding indicates that the dispersal of singing cicadas in Europe occurred significantly earlier than previously believed, pushing back the timeline for the emergence of sound-producing cicadas in the tribe Platypleurini by approximately 20 million years. The research, published in the journal Scientific Reports, highlights the importance of the Messel Pit's unique environment, which has allowed for the preservation of a diverse range of Eocene life, including cicadas, under conditions that prevented oxygen from reaching the lake bed where the fossils were found.
The study, led by Dr. Hui Jiang from the Bonn Institute of Organismic Biology, sheds light on the evolutionary history of cicadas, suggesting that this ancient lineage may have evolved more slowly than earlier genetic data had indicated. With only 44 documented fossil specimens from the Cicadidae family, the discovery of E. messelensis provides valuable insights into the evolutionary timeline and diversification of cicadas. The structure of the ancient cicada closely resembles that of its modern relatives, although it shows distinct differences in wing shape and size that may have influenced its flight capabilities. While researchers cannot definitively ascertain the sound produced by E. messelensis, its broader abdomen suggests the potential for a louder call, possibly even louder than modern cicadas, indicating an exciting avenue for future research into the relationship between cicada morphology and sound production.
TruthLens AI Analysis
The recent discovery of a 47 million-year-old cicada fossil offers a fascinating glimpse into the ancient past and has significant implications for our understanding of insect evolution. The fossil, found in Germany, represents the oldest singing cicada known from Europe and sheds light on the distribution of cicadas across the continent long before modern times.
Purpose of the Article
This news serves to highlight a remarkable scientific achievement in paleontology, showcasing the importance of fossil discoveries in understanding evolutionary history. By drawing attention to the cicada's ancient lineage and its singing capabilities, the article aims to foster public interest in paleontology and the natural sciences.
Public Perception and Impact
The report likely seeks to create a sense of wonder and appreciation for the natural world, illustrating how ancient species can provide insights into current biodiversity. It may also aim to inspire curiosity about the evolutionary adaptations of insects and their ecological significance.
Potential Omissions
While the article focuses on an exciting discovery, it might downplay broader ecological concerns or contemporary issues facing cicada populations today, such as habitat loss or climate change. By concentrating on the fossil's historical significance, there may be an implicit avoidance of discussing ongoing environmental challenges.
Manipulative Elements
The article does not appear overtly manipulative, but it does selectively emphasize the cicada's singing ability, which could subtly influence readers to romanticize the past while neglecting present-day realities. The language is factual and engaging, aimed at attracting attention rather than inciting alarm.
Credibility Assessment
This report seems credible, citing scientific findings and including quotes from a noted paleontologist. The fossil's age and characteristics are backed by peer-reviewed research published in a reputable journal, which adds to the article's reliability.
Community Engagement
The discovery is likely to resonate with communities interested in natural history, entomology, and conservation. It may attract support from educational institutions, environmental organizations, and enthusiasts of biodiversity.
Economic and Political Implications
While the article focuses on a paleontological discovery, the underlying themes of biodiversity and conservation could influence public discourse on environmental policies. Awareness of ancient species may bolster support for conservation efforts, linking past and present ecological narratives.
Global Context
The cicada's fossil discovery does not directly relate to contemporary global power dynamics; however, it contributes to the broader understanding of species evolution, which is crucial for biodiversity conservation in the face of climate change.
AI Influence in Writing
There is a possibility that AI tools were used in crafting the article for clarity and coherence. Such models might have influenced the organization and presentation of the scientific information, ensuring it is accessible to a general audience.
In conclusion, this article effectively communicates an important paleontological discovery while fostering public interest in scientific inquiry. It does not appear to manipulate information overtly but focuses on the historical significance of the find. Overall, the credibility of the report is strong, supported by expert commentary and relevant research.