Unveiling the Ancient Origins of Ants: The Discovery of Vulcanidris cratensis

May 6, 2025 By Eric Ward

In the vast annals of Earth's history, the story of ants is one of remarkable resilience and evolutionary success. These tiny insects, now found on every continent except Antarctica, have a lineage that stretches back millions of years. However, the exact timeline of their emergence and early evolution has long been shrouded in mystery. A recent discovery, however, has shed new light on this ancient history, revealing that ants were already thriving among dinosaurs much earlier than previously thought.


The Discovery of Vulcanidris cratensis


The breakthrough came in September 2024 when Anderson Lepeco, a researcher at the Museum of Zoology of the University of São Paulo, stumbled upon an "extraordinary" fossil specimen. This nearly overlooked relic, preserved in limestone, turned out to be the oldest known ant specimen, dating back 113 million years to the Cretaceous period. This finding predates previously discovered fossilized ants by several million years, pushing back the known timeline of ant evolution.


The fossil, named Vulcanidris cratensis, was found in the museum's extensive collection of fossilized insects from northeastern Brazil's Crato Formation. This geological deposit is renowned for its exceptional fossil preservation, making it a treasure trove for paleontologists. The Museum of Zoology of the University of São Paulo houses one of the world's largest collections of such fossils, providing a unique window into the ancient world.


The Unique Features of Vulcanidris cratensis


Vulcanidris cratensis is a member of the subfamily Haidomyrmecinae, commonly known as hell ants. These ancient insects lived during the Cretaceous period, which spanned from 145 million to 66 million years ago. Unlike modern ants, hell ants are not related to any living ant species today. Instead, they represent an extinct lineage that diverged early in the evolutionary history of ants.


What sets Vulcanidris cratensis apart is its unusual anatomy. Modern ants have jaws that grasp laterally, moving side to side. In contrast, this ancient ant possessed scythe-like jaws that ran parallel to its head and projected forward from near the eyes. These jaws likely functioned as a forklift, allowing the ant to pin or impale its prey. This sophisticated predatory strategy suggests that even the earliest ants had evolved complex hunting techniques significantly different from their modern counterparts.


Lepeco described his initial reaction to the fossil: "I was just shocked to see that weird projection in front of this (insect’s) head. Other hell ants have been described with odd mandibles, but always as amber specimens." Indeed, it is rare to find insects preserved in rock. Most hell ants from the Cretaceous period have been found entombed in amber from France and Myanmar, dating back to around 99 million years ago. The discovery of Vulcanidris cratensis in Brazil indicates that ants were already widely distributed across the planet at an early point in their evolution.


Implications for Ant Evolution


The discovery of Vulcanidris cratensis has significant implications for our understanding of ant evolution. Ants evolved during the late Jurassic and early Cretaceous periods, roughly 145 million years ago, when ant ancestors diverged from the same group that would give rise to wasps and bees. However, it wasn't until after the asteroid strike that wiped out the dinosaurs 66 million years ago that ants became the most common insect found in the fossil record.


The fossil record for ants has been sparse, with the oldest previously known specimens dating back to around 100 million years ago. The discovery of Vulcanidris cratensis extends this timeline by about ten million years, providing crucial insights into the early stages of ant evolution. "This new find now represents the oldest ant known," said Phil Barden, an associate professor at the New Jersey Institute of Technology who studies the evolutionary history of insects. "It extends the known fossil record for ants by about ten million years."


The Broader Context of Ant Evolution


The Cretaceous period was a time of significant change, marked by the diversification of flowering plants and the rise of dinosaurs. The discovery of Vulcanidris cratensis suggests that ants were already well-established during this period, adapting to a changing world. The fossil also reveals some wasp-like characteristics, indicative of the common ancestry between ants and wasps. For example, the ant's wings had far more veins than those of living ants, highlighting the evolutionary journey that led to the diverse forms we see today.


Micro-computed tomography imaging, a 3D-imaging technique that employs X-rays to view inside the ant, revealed that Vulcanidris cratensis was closely related to hell ants previously known only from Burmese amber fossils. This finding underscores the importance of diverse fossil deposits in piecing together the evolutionary history of insects.


The discovery of Vulcanidris cratensis is a "pretty big deal," as Phil Barden aptly put it. This ancient ant, with its unique anatomical features and sophisticated predatory strategies, provides a rare glimpse into the early stages of ant evolution. The fossil extends the known timeline of ants by about ten million years, highlighting the resilience and adaptability of these tiny insects.


As researchers continue to explore the Crato Formation and other fossil-rich deposits, they hope to uncover more about the ancient world and the creatures that inhabited it. The story of Vulcanidris cratensis is not just a tale of one species but a testament to the enduring legacy of ants, which have thrived for millions of years and continue to dominate the insect world today.



Recommend Posts
Science

The Quest for Life Beyond Earth: A Promising Discovery on Exoplanet K2-18b

By Sophia Lewis/May 6, 2025

In the vast expanse of the cosmos, the search for life beyond Earth has captivated scientists and the public alike. A recent discovery by a team of astronomers using the James Webb Space Telescope has brought this quest one step closer to reality. The team detected chemical fingerprints within the atmosphere of an exoplanet named K2-18b that suggest the presence of dimethyl sulfide (DMS) and potentially dimethyl disulfide (DMDS). On Earth, these molecules are produced exclusively by microbial life, particularly marine phytoplankton. This finding, published in The Astrophysical Journal Letters, has sparked excitement and cautious optimism among the scientific community.
Science

Don Pettit: The Artist and Innovator of the Cosmos

By Olivia Reed/May 6, 2025

In the vast expanse of space, where the boundaries of human experience are constantly pushed, one figure stands out as a testament to the ingenuity and artistic spirit of humanity. Longtime NASA astronaut Don Pettit, who recently returned to Earth after a seven-month stay aboard the International Space Station (ISS), has not only ventured into the cosmos but has also left his mark through innovation and artistry. Pettit, who turned 70 on Sunday, landed at 9:20 p.m. ET in a Soyuz spacecraft with Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner near Zhezkazgan, Kazakhstan. His journey, filled with groundbreaking achievements and breathtaking imagery, has captured the imagination of both scientists and the public alike.
Science

The Lyrid Meteor Shower: A Celestial Awakening After Months of Silence

By William Miller/May 6, 2025

For sky-gazers who have been patiently waiting for the next celestial spectacle, the wait is finally over. The Lyrid meteor shower, one of the oldest known meteor showers, has returned to grace the night sky, offering a dazzling display of shooting stars. This annual event, which began on April 17, will continue until April 25, with the peak activity occurring on the night of April 21 into the early morning hours of April 22. Despite the interference from the waning crescent moon, the Lyrids promise a memorable show for those willing to stay up late and venture into the darkness.
Science

Unveiling the Ancient Origins of Ants: The Discovery of Vulcanidris cratensis

By Eric Ward/May 6, 2025

In the vast annals of Earth's history, the story of ants is one of remarkable resilience and evolutionary success. These tiny insects, now found on every continent except Antarctica, have a lineage that stretches back millions of years. However, the exact timeline of their emergence and early evolution has long been shrouded in mystery. A recent discovery, however, has shed new light on this ancient history, revealing that ants were already thriving among dinosaurs much earlier than previously thought.
Science

Unearthing Empires: The Mysterious 1,700-Year-Old Altar in Tikal

By John Smith/May 6, 2025

In the heart of an ancient Mayan city, archaeologists have unearthed a relic that promises to rewrite the history books. A 1,700-year-old altar, discovered in Tikal, a ruined Mayan city in modern-day Guatemala, holds clues to the complex geopolitical dynamics of the time. This ornate altar, with its bright decorations and grim contents, suggests that the Mayan city was under the influence of a powerful empire hundreds of miles away.
Science

Unearthing the Past: A Glimpse into Early Medieval Life in South Wales

By Rebecca Stewart/May 6, 2025

In the rolling hills of south Wales, archaeologists have unearthed a treasure trove of skeletons that offer a rare glimpse into a period of history shrouded in mystery. Dating from the Early Medieval era (400 to 1100 AD), these remains belong to a time that is poorly documented in historical records and for which few archaeological sites exist. The discovery of 41 skeletons, predominantly women, has provided invaluable insights into the lives of people who lived around 500 to 600 AD, revealing a challenging existence marked by hard labor, illness, and occasional luxury.
Science

Unveiling the Hidden Depths of the Sierra Nevada: Lithospheric Foundering and the Evolution of Continents

By Benjamin Evans/May 6, 2025

In the heart of California's Sierra Nevada mountain range, a geological mystery has been unfolding for millions of years, hidden beneath the Earth's surface. Seismologist Deborah Kilb, while poring over earthquake records from the past four decades, stumbled upon a peculiar pattern: a series of deep earthquakes occurring at depths where seismic activity is typically unexpected. This discovery has led to groundbreaking insights into the geological processes shaping our planet and the formation of continents.
Science

Rewriting the Origins of Water on Earth: The Role of Hydrogen in Early Planetary Formation

By Eric Ward/May 6, 2025

For decades, the scientific community has held a widely accepted theory about the origins of water on Earth: that it arrived via asteroid impacts on a dry, rocky planet. However, a groundbreaking study published in the journal Icarus challenges this long-standing belief by suggesting that early Earth may have been home to more hydrogen than previously thought. This revelation has profound implications for our understanding of the planet's evolution and the formation of water molecules.
Science

The Eta Aquariid Meteor Shower: A Celestial Spectacle Worth Waking Up For

By Eric Ward/May 6, 2025

As the night sky transitions into the early morning hours, a celestial spectacle unfolds, captivating stargazers and astronomy enthusiasts alike. The Eta Aquariid meteor shower, which has reached its peak, offers a rare and breathtaking display of shooting stars. This annual event, considered one of the best meteor showers in the Southern Hemisphere, is a must-see for anyone willing to rise before dawn.
Science

Uturuncu: The Zombie Volcano That Keeps Scientists Guessing

By Daniel Scott/May 6, 2025

In the heart of the Central Andes mountain range, a colossal peak known as Uturuncu stands as a towering sentinel. This mountain, the tallest in southwestern Bolivia, is what scientists refer to as a "zombie volcano." It hasn't erupted in over 250,000 years, yet it exhibits signs of activity reminiscent of active volcanoes—gas plumes, earthquakes, and even a peculiar "sombrero" deformation near its summit. This unusual behavior has left researchers with a burning question: Can a volcano truly rise from the dead?
Science

From Snake Venom to Lifesaving Antivenom: A Revolutionary Breakthrough

By Benjamin Evans/May 6, 2025

In the realm of medical science, few stories are as extraordinary as that of Tim Friede, a self-taught snake expert who willingly subjected himself to the venom of some of the world’s deadliest snakes over nearly two decades. What began as a seemingly reckless endeavor has now led to a groundbreaking discovery that could revolutionize the treatment of snakebites globally. This remarkable journey, spearheaded by immunologist Jacob Glanville, has culminated in the development of an antivenom that offers protection against bites from 19 species of venomous snakes—a feat that could save countless lives.
Science

Unveiling the Sun's Secrets: A New Era of Solar Exploration

By Elizabeth Taylor/May 6, 2025

In a remarkable feat of scientific achievement, the world’s largest solar telescope has captured an image of the sun in unprecedented detail, revealing its fiery complexity and offering crucial insights into the behavior of our nearest star. This groundbreaking image, taken by the US National Science Foundation Daniel K. Inouye Solar Telescope’s new Visible Tunable Filter (VTF), provides a closer-than-ever, three-dimensional view of the sun’s surface. The close-up reveals continent-size sunspots, areas of intense magnetic activity where solar flares and coronal mass ejections (CMEs) are likely to occur. These detailed images are not just visually stunning; they are essential tools for scientists seeking to understand and predict potentially dangerous solar weather.
Science

The Return of Cosmos 482: A Soviet Relic's Unexpected Homecoming

By James Moore/May 6, 2025

In the vast expanse of space, where the remnants of human exploration drift silently through the cosmos, a piece of history is about to make its way back to Earth. Over 50 years after a Soviet mission to Venus ended in failure, a fragment of that mission, known as Cosmos 482, is set to reenter our atmosphere as soon as this week. This relic from the Cold War era of space exploration has been orbiting Earth for decades, and its impending return raises intriguing questions about the nature of space debris and the risks it poses.
Science

Eos: The Hidden Cloud That Could Illuminate the Birth of Stars and Planets

By Victoria Gonzalez/May 6, 2025

In the vast expanse of the cosmos, where the secrets of the universe are often hidden in plain sight, astronomers have made a groundbreaking discovery that could change our understanding of how stars and planets form. An invisible molecular cloud, named Eos after the Greek goddess of the dawn, has been detected surprisingly close to Earth. This colossal cloud of gas, which would appear as a massive structure in the night sky if visible to the naked eye, measures roughly 40 times the width of the full moon and has a mass about 3,400 times that of our sun. The discovery, reported in a study published in the journal Nature Astronomy, has stunned the scientific community, as Eos was found to be the closest molecular cloud to Earth—yet it had eluded detection for decades.
Science

Unlocking the Cosmic Origins of Gold: Magnetars and the Quest for Heavy Elements

By Sophia Lewis/May 6, 2025

For decades, astronomers have been on a quest to unravel one of the universe's most enduring mysteries: the origin of heavy elements like gold. These elements, heavier than iron, are rare and precious, yet their distribution across the cosmos has long puzzled scientists. While lighter elements such as hydrogen and helium were forged in the aftermath of the Big Bang, and heavier elements like iron were released by exploding stars, the creation of gold has remained an enigma. Now, new research suggests that the answer may lie in some of the most extreme objects in the universe: magnetars.
Science

Unveiling the Past: The Discovery of the Danish Slave Ships in Costa Rica

By Laura Wilson/May 6, 2025

In the depths of history, where the waves of time have long since washed over the remnants of the past, marine archaeologists have uncovered a story that has lain hidden for centuries. The discovery of two shipwrecks off the coast of Costa Rica has not only shed light on a long-lost chapter of maritime history but also restored the ancestral lineage of an entire community. These wrecks, once believed to be pirate ships, have now been identified as Danish slave ships that vanished over 300 years ago. This revelation is more than just an archaeological triumph; it is a profound connection between the past and the present, bridging centuries and continents.
Science

The Secrets of the "Air-Dried Chaplain": Unveiling the Mummy's Tale

By Olivia Reed/May 6, 2025

In the quiet embrace of a remote Alpine village, a mystery has lain dormant for centuries, hidden within the walls of a church crypt. The mummified remains of an 18th-century clergyman, stored in St. Thomas am Blasenstein, have long been a source of fascination and speculation. Local legends whispered that the body, believed to belong to a man who succumbed to an infectious disease, had been exhumed years after burial and laid to rest in the crypt. The remarkable preservation of the body, with skin and tissue still intact, drew pilgrims who hoped for miraculous healing from the seemingly incorrupt remains. But beneath the surface of this enigmatic figure, secrets lay buried, waiting to be uncovered.
Science

Building the Future with Living Materials: The Mycelium Revolution

By David Anderson/May 6, 2025

In the quest for sustainable solutions to our ever-growing environmental challenges, a groundbreaking innovation has emerged at the intersection of biology and engineering. Researchers in Montana have developed a revolutionary building material that not only promises to redefine construction but also harmonizes human ingenuity with the natural world. This innovation is rooted in mycelium, the intricate, root-like structures that form the foundation of fungal networks. By harnessing the power of this organic material, scientists are paving the way for a future where buildings are not just structures, but living, breathing entities that can adapt, repair, and even thrive.
Science

The Enigmatic Origins of Monotremes: Unraveling the Evolutionary Tale of Platypuses and Echidnas

By Olivia Reed/May 6, 2025

In the vast tapestry of life on Earth, few creatures capture the imagination quite like the platypus and the echidna. These peculiar animals, found exclusively in Australia and New Guinea, are the last remnants of a lineage that stretches back millions of years. Known as monotremes, they are the only mammals that lay eggs, a trait that sets them apart from the rest of their mammalian kin.
Science

The Dawn of Mycelium: A Fungal Frontier in Sustainable Construction

By Sophia Lewis/May 6, 2025

Imagine a world where our homes are not built from lifeless concrete, but from living, breathing organisms. This may sound like a scene from a futuristic novel, but the reality is closer than you might think. Researchers are on the brink of revolutionizing the construction industry with a material that grows, adapts, and even repairs itself—a material made from fungi and bacteria. This groundbreaking study, published in the journal Cell Reports Physical Science, has taken us one step closer to a future where sustainable, living architecture is not just a dream, but a tangible reality.