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Transitional fossil
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A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group. This is especially important where the descendan
Archaeopteryx is one of the most famous transitional fossils and gives evidence for the evolution of birds from theropod dinosaurs.
Archaeopteryx is one of the most famous transitional fossils and gives evidence for the evolution of birds from theropod dinosaurs.
Traditional spindle diagram showing the vertebrates classes "budding" off from each other. Transitional fossils typically represent animals from near
Traditional spindle diagram showing the vertebrates classes "budding" off from each other. Transitional fossils typically represent animals from near the branching points.
A. afarensis - walking posture
A. afarensis - walking posture
Reconstruction of Pakicetus
Reconstruction of Pakicetus
Java Man
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Java Man is an early human fossil discovered in 1891 and 1892 on the island of Java. Estimated to be between 700,000 and 1,490,000 years old, it was, at the time of its discovery, the oldest hominid f
Transitional fossil
…and an adult human. The single molar was larger than any modern human tooth, but the femur was long and straight, with a knee angle showing that "Java Man" had walked upright. Given the name Pithecanthropus erectus ("erect ape-man"), it became the first in what is now a long list of human evolution fossils…
Pithecanthropus erectus Peter Maas Naturalis
Pithecanthropus erectus Peter Maas Naturalis
The three main fossils of Java Man found in 1891–92: a skullcap, a molar, and a thighbone, each seen from two different angles.
The three main fossils of Java Man found in 1891–92: a skullcap, a molar, and a thighbone, each seen from two different angles.
1922 reconstruction of a Java Man skull, due to Trinil 2 being only a cranium, Dubois who believed Java man was transitional between apes and humans,
1922 reconstruction of a Java Man skull, due to Trinil 2 being only a cranium, Dubois who believed Java man was transitional between apes and humans, drew the reconstruction with an ape-like jaw but a brain larger than apes'
The gibbon's ability to stand and walk upright made Eugène Dubois believe it was closely related to humans. This is one of the reasons why he once cla
The gibbon's ability to stand and walk upright made Eugène Dubois believe it was closely related to humans. This is one of the reasons why he once claimed that Java Man looked like a "giant gibbon".