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Previously the earliest was Eomaia, a crown group mammal from about 125M years ago. It had aquatic adaptations including flattened tail bones and remnants of soft tissue between the toes of the back feet, suggesting that they were webbed. Previously the earliest known semi-aquatic mammaliaforms were from the Eocene, about 110M years later.
First balanids and eucalypts, extinction of embrithopod and brontothere mammals, earliest pigs and cats. 28 Ma Paraceratherium appears in the fossil record, the largest terrestrial mammal that ever lived. First pelicans. 25 Ma Pelagornis sandersi appears in the fossil record, the largest flying bird that ever lived. 25 Ma First deer. 24 Ma ...
Phylogenetic tree of the primates Notharctus. The evolutionary history of the primates can be traced back 57-90 million years. [1] One of the oldest known primate-like mammal species, Plesiadapis, came from North America; [2] another, Archicebus, came from China. [3]
The animal’s fossil records date back 225 million years, predating the previously confirmed first mammal by approximately 20 million years.
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
From its earliest appearance at about 1.9 Ma, H. erectus is distributed in East Africa and Southwest Asia (Homo georgicus). H. erectus is the first known species to develop control of fire, by about 1.5 Ma. H. erectus later migrates throughout Eurasia, reaching Southeast Asia by 0.7 Ma. It is described in a number of subspecies. [38]
While sifting through rocks and fossils in England, paleontologists discovered two teeth belonging to two different critters living 145 million years ago.
The generic name Quaestio is derived directly from the Latin word quaestio, meaning "question", in reference to the shape of the central ridge. The specific name simpsonorum is the Latinisation of the surname of philanthropists Mary Lou and Antony Simpson, in honor of their contributions to the research and conservation of Ediacaran fossil ...