A giant dinosaur with heart-shaped tail bones is presented to the world just in time for Valentine's Day.
Scientists believe the titanose will shed light on the evolution of the dinosaurs in Africa, where a partial skeleton is found.
Titans, long legs sitting on four legs weighed up to 70 tons and included the largest animals ever to have walked on Earth.
They lived towards the end of the Cretaceous era dinosaur era more than 65 million years ago and were widely spread around the world.
The new specimen, described in the Public Library of Science magazine ONE, was discovered by a quarry near the Mukka River in southwest Tanzania.
His scientific name, Mnyamawamtuka moyowamkia, is derived from Swahili and is translated as "Mtuka (C) animal with a heart-shaped tail".
The distinctive feature of the dinosaur is the unusual shape of the heart of his vertebrae.
Together with multiple vertebrae, scientists have found ribs, bones of limbs and teeth in their careers.
The dinosaur adds evidence of a close link between South African and South American tyrannosaurs, the researchers said.
Dr. Eric Gorskak, a member of the Middle West University team in the United States, said: "Although titanozas have become one of the most successful dinosaur groups before the scandalous mass extinction covering the era of dinosaurs, their early evolutionary history remains vague and Mnimavoumutuka helps to understand these beginnings, especially for their African side of history. "
Weighing about a ton and a height of the middle man of the thigh, Mnimavamtuta was small compared to other titanosavirs. But scientists think it's not an adult.
"Based on some of the bones, she was young and certainly not fully grown," says Dr. Gorstak. "We just are not sure how much bigger we would get."
Judy Skog of the American National Science Foundation, who funded the study, said: "This new dinosaur gives us important information about the African fauna during evolutionary change.
"The discovery offers insights into paleogeography during the chalk. It is also timely information on an animal with heart-shaped tail bones this Valentine's week. "