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Palaeobatrachus was the first fossil frog to be described, [1] with the first species being P. diluvianus named by Goldfuss in 1831, originally as Rana diluviana from remains found in uppermost Oligocene strata near Bonn in Germany. It was later recognised as distinct and placed in the new separate genus Palaeobatrachus by Tschudi in 1839. [3]
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.
Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends. Another term, "zone fossil", is used when the fossil has all the characters stated above except wide geographical distribution; thus, they correlate the surrounding rock to a biozone rather than a specific time period.
A living Hyla gratiosa, or barking tree frog †Hyla gratiosa; Hylocichla – or unidentified comparable form †Hylocichla mustelina; Hyotissa †Hypohippus †Hypolagus; Ictalurus †Ictalurus catus – or unidentified comparable form; Ilex †Ilex glabra; Ilyanassa; Fossilized skull of the Miocene bear Indarctos †Indarctos †Inodrillia ...
Kermit the Frog meet Kermitops gratus, the most recent ancient amphibian to be identified after examination of a tiny fossilized skull that once sat unstudied in the Smithsonian fossil collection ...
Beelzebufo (/ b iː ˌ ɛ l z ɪ ˈ b juː f oʊ / or / ˌ b iː l z ə ˈ b juː f oʊ /) is an extinct genus of hyloid frog from the Late Cretaceous Berivotra and Maevarano Formations of Madagascar. [1] The type species is B. ampinga, and common names assigned by the popular media to B. ampinga include devil frog, [2] devil toad, [3] and the ...
The oldest-known frog fossils date to even earlier. Scientists in Argentina have discovered excellently preserved fossil remains of the oldest-known tadpole, the larval stage of a large frog ...
Older fossils lay even deeper beneath the bone bed. These 8.9-million-year-old rocks included fossilized bones of fish and marine mammals. Experts also found teeth from juvenile megalodons and ...