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Scientists in Argentina have discovered excellently preserved fossil remains of the oldest-known tadpole, the larval stage of a large frog species that lived alongside dinosaurs about 161 million ...
In 2024, a tadpole specimen of N. degiustoi (MPM-PV 23540) was reported from the La Matilde Formation of Argentina, representing the oldest known tadpole and the first stem-anuran larva in the fossil record. Tadpoles of this species reached lengths of 15.9 centimetres (6.3 in), among the largest recorded in frogs living or extinct.
The fossil was first uncovered in 1984 by the late Nicholas Hotton III, a museum paleontologist who had excavated fossils from the Red Beds in Texas, an area known to be rich in Permian-age remains.
'Human Biology and Behaviour: An anthropological perspective (4th ed.). Boston: Little Brown. ISBN 978-0-673-39013-4. (Note: this book contains very accessible descriptions of human and non-human primates, their evolution, and fossil history). Wells, Spencer (2004). The Journey of Man : A Genetic Odyssey. New York: Random House Trade Paperbacks.
The skull of Triadobatrachus is frog-like, being broad with large eye sockets, but the fossil has features diverging from modern frogs. These include a longer body with more vertebrae. The tail has separate vertebrae, unlike the fused urostyle or coccyx found in modern frogs.
A 68-million-year-old skull fossil found in Antarctica has revealed the oldest known modern bird, which was likely related to the waterfowl that live by lakes and oceans today, according to new ...
A 1.4-million-year-old fossil jaw discovered in a South African cave in 1949 has now been identified as that of a previously unknown human relative species dubbed the “nutcracker man”.
Indobatrachus (Greek for "Indian frog") is an extinct genus of frog known from the Early Paleocene of India. [1] [2] It contains a single species, Indobatrachus pusillus.Two other species, I. trivialis and I. malabaricus, were also previously described, but these have since been synonymized with I. pusillus.