Pallaviciniites
| Pallaviciniites Temporal range: Frasnian | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Division: | Marchantiophyta |
| Class: | Jungermanniopsida |
| Order: | Metzgeriales |
| Genus: | †Pallaviciniites Schuster 1966 (Hueber, 1961) |
| Binomial name | |
| Pallaviciniites devonicus Schuster 1966 (Hueber, 1961) | |
| Synonyms | |
| |
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]
- 1 2 Hueber, F. M. (1961). "Hepaticites devonicus, a New Fossil Liverwort from the Devonian of New York". Annals of the Missouri Botanical Garden 48 (2): 125–131. doi:10.2307/2394879. JSTOR 2394879.
- ↑ Hernick, L.; Landing, E.; Bartowski, K. (2008). "Earth's oldest liverworts—Metzgeriothallus sharonae sp. Nov. From the Middle Devonian (Givetian) of eastern New York, USA". Review of Palaeobotany and Palynology 148: 154. doi:10.1016/j.revpalbo.2007.09.002.
- 1 2 Chopra, R. N (1998). Topics in bryology. ISBN 978-81-7023-811-9.
- ↑ Banks, H. (1975). "The oldest vascular land plants: A note of caution". Review of Palaeobotany and Palynology 20: 13–69. doi:10.1016/0034-6667(75)90004-4.
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