Archaeopteryx
lithographica -Meyer, 1861- cast ot the Berlin specimen
Sauriurae: Archaeornithes:
Archaeopterygidae
Locality: Solnhofen, Bavaria, Germany
Age: Late Jurassic
(Early Titonian), 150 million years ago
In
the past 10-15 years, seemingly no one question attracts such lively interest from
experts in the paleontology and evolution of the land vertebrates as the problem
of the origin of birds. It is surrounded by the long-lasting controversy, that began
soon after Archaeopteryx had been described in 1861 concerning the mainly two principal
questions: What group was an ancestor of birds? How had the avian flight originated?
Archaeopteryx
lithographica -Meyer, 1861- cast ot the London specimen
Sauriurae: Archaeornithes:
Archaeopterygidae
Locality: Solnhofen, Bavaria, Germany
Age: Late Jurassic
(Early Titonian), 150 million years ago
This
is a $1 dollar coin issued by the government of Liberia.
It is larger than a silver
dollar.