Pallaviciniites
From Infogalactic: the planetary knowledge core
| Pallaviciniites |
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Scientific classification  |
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| Kingdom: | Plantae |
| Division: | Marchantiophyta |
| Class: | Jungermanniopsida |
| Order: | Metzgeriales |
| Genus: | †Pallaviciniites Schuster 1966 (Hueber, 1961) |
| Binomial name | |
| Pallaviciniites devonicus Schuster 1966 (Hueber, 1961)
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| Synonyms | |
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The lowermost Upper Devonian fossil Pallaviciniites was for a time the oldest known liverwort until Metzgeriothallus was recovered from earlier Devonian strata.[2]
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]
