Agnostus pisiformis — a half a billion-year old pea-shaped enigma
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DOI: 10.1016/j.earscirev.2017.08.004
Abstract: The Cambrian arthropod Agnostus pisiformis (Wahlenberg, 1818) is not only a beautiful fossil animal, approximately 1 cm in length when adult, but also an extinct species unusually well-known from its ‘soft’ ventral cuticular structures. It… read more here.
Keywords: pisiformis half; old pea; half billion; billion year ... See more keywords
Structure and function of a compound eye, more than half a billion years old
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.1716824114
Abstract: Significance An exceptionally well-preserved arthropod fossil from near the base of the lower Cambrian shows the internal sensory structures of a compound eye, more than half a billion years old. The trilobite to which it… read more here.
Keywords: years old; half billion; compound eye; billion years ... See more keywords