Fossilized remains of one of the largest turtles that ever lived — a car-sized freshwater beast — have been unearthed in Colombia’s Tatacoa Desert and Venezuela’s Urumaco region, scientists said on Wednesday.
The fossils of the turtle, called Stupendemys geographicus, provide a comprehensive understanding of the big reptiles, which grew up to 4m in length and could weigh more than 1 tonne.
S. geographicus males, unlike the females, boasted sturdy front-facing horns on both sides of the carapace — or shell — very close to the neck. Deep scars detected in the fossils indicated that these horns might have been used like a lance for fighting with other S. geographicus males over mates or territory.
Photo: Reuters
Fighting occurs among some turtles today, particularly between male tortoises, according to paleontologist Edwin Cadena of the Universidad del Rosario in Bogota, who led the research published in the journal Science Advances.
S. geographicus is the second-largest known turtle, behind seagoing Archelon, which reached about 4.6m in length.
The first S. geographicus fossils were found in the 1970s, but many mysteries remained about the animal.
The new fossils included the largest-known turtle shell — 2.86m long, even larger than Archelon’s shell — and the first lower jaw remains, which gave clues about its diet.
“Stupendemys geographicus was huge and heavy. The largest individuals of this species were about the size and length of a sedan automobile if we take into account the head, neck, shell and limbs,” Cadena said.
“Its diet was diverse, including small animals — fishes, caimans, snakes — as well as mollusks and vegetation, particularly fruits and seeds. Putting together all the anatomical features of this species indicates that its lifestyle was mostly in the bottom of large freshwater bodies including lakes and large rivers,” he said.
Stupendemys — meaning “stupendous turtle” — geographicus inhabited a huge wetlands system spanning Colombia, Venezuela, Brazil and Peru.
Its large size might have been crucial in defending against predators. It shared the environment with giant crocodilians, including the 11m-long caiman Purussaurus and the 10m-long gavial Gryposuchus.
One of the S. geographicus fossils was found with a 5cm crocodilian tooth embedded in it.
Former Nicaraguan president Violeta Chamorro, who brought peace to Nicaragua after years of war and was the first woman elected president in the Americas, died on Saturday at the age of 95, her family said. Chamorro, who ruled the poor Central American country from 1990 to 1997, “died in peace, surrounded by the affection and love of her children,” said a statement issued by her four children. As president, Chamorro ended a civil war that had raged for much of the 1980s as US-backed rebels known as the “Contras” fought the leftist Sandinista government. That conflict made Nicaragua one of
COMPETITION: The US and Russia make up about 90 percent of the world stockpile and are adding new versions, while China’s nuclear force is steadily rising, SIPRI said Most of the world’s nuclear-armed states continued to modernize their arsenals last year, setting the stage for a new nuclear arms race, the Stockholm International Peace Research Institute (SIPRI) said yesterday. Nuclear powers including the US and Russia — which account for about 90 percent of the world’s stockpile — had spent time last year “upgrading existing weapons and adding newer versions,” researchers said. Since the end of the Cold War, old warheads have generally been dismantled quicker than new ones have been deployed, resulting in a decrease in the overall number of warheads. However, SIPRI said that the trend was likely
BOMBARDMENT: Moscow sent more than 440 drones and 32 missiles, Volodymyr Zelenskiy said, in ‘one of the most terrifying strikes’ on the capital in recent months A nighttime Russian missile and drone bombardment of Ukraine killed at least 15 people and injured 116 while they slept in their homes, local officials said yesterday, with the main barrage centering on the capital, Kyiv. Kyiv City Military Administration head Tymur Tkachenko said 14 people were killed and 99 were injured as explosions echoed across the city for hours during the night. The bombardment demolished a nine-story residential building, destroying dozens of apartments. Emergency workers were at the scene to rescue people from under the rubble. Russia flung more than 440 drones and 32 missiles at Ukraine, Ukrainian President Volodymyr Zelenskiy
Indonesia’s Mount Lewotobi Laki-Laki yesterday erupted again with giant ash and smoke plumes after forcing evacuations of villages and flight cancelations, including to and from the resort island of Bali. Several eruptions sent ash up to 5km into the sky on Tuesday evening to yesterday afternoon. An eruption on Tuesday afternoon sent thick, gray clouds 10km into the sky that expanded into a mushroom-shaped ash cloud visible as much as 150km kilometers away. The eruption alert was raised on Tuesday to the highest level and the danger zone where people are recommended to leave was expanded to 8km from the crater. Officers also