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Species of liverwort From Wikipedia, the free encyclopedia
The lowermost Upper Devonian fossil Pallaviciniites was for a time the oldest known liverwort until Metzgeriothallus was recovered from earlier Devonian strata.[2]
Pallaviciniites Temporal range: | |
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Scientific classification | |
Kingdom: | Plantae |
Division: | Marchantiophyta |
Class: | Jungermanniopsida |
Order: | Metzgeriales |
Genus: | †Pallaviciniites Schuster 1966 (Hueber, 1961) |
Species: | †P. devonicus |
Binomial name | |
†Pallaviciniites devonicus Schuster 1966 (Hueber, 1961) | |
Synonyms | |
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It had a central axis, and bifurcated at its tips; similar fossils have been found in younger strata through to the Pleistocene.[3] With the exception of its elongated axial conducting (non-vascular) cells, the thallus was a single cell thick.[4] It had a serrated margin.[1]
Prior to its discovery, the oldest known liverworts dated to the Lower Carboniferous.[3]
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