Praecambridium
Praecambridium sigillum Temporal range: Ediacaran
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File:Praecambridium sigillum.jpg | |
Scientific classification | |
Kingdom: | |
Phylum: |
Fedonkin 1983
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Genus: |
Praecambridium
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Species: |
P. sigillum
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Praecambridium sigillum is an extinct organism that superficially resembles a segmented trilobite-like arthropod,[1] though the majority of experts now place it within the Proarticulata.[2][3] It is from the Late Precambrian of Ediacara Hills, Australia, about 555 million years ago. On average, P. sigillum had at least 5 pairs of segments, with each unit becoming progressively larger as they approach the cephalon-like head.
Etymology
The generic name is a compound word, with the Latin prefix prae "before" and a reference to the Cambrian mollusc genus Cambridium Horny 1957, in reference to how the appearance of the various segments are reminiscent of the muscle-scars on the inner surface of the shells of Cambridium.[4] The specific name is from Latin sigillum "a sigil".
See Also
References
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