Nilssonia (plant)
| Nilssonia | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Spermatophyta |
| Division: | Cycadeoidophyta |
| Order: | Bennettitales |
| Family: | Cycadeoidaceae |
| Genus: | Nilssonia (Brongniart), 1825.[1] |
| Species | |
| |
Nilssonia is an extinct genus of plants, called "cycadeoids," belonging to Bennettitales, which were similar to cycads in growth form and leaf morphology, but completely different in reproductive structures. Fossils of the cycadeoid Nilssonia are found in Triassic, Jurassic and Cretaceous-aged terrestrial strata of East Asia, Australia, North and South America, and Europe.[2][3][4]
Location of palaeontological sites
- Australia
- In Paleorrota geopark in Brazil. Upper Triassic period, the Santa Maria Formation.[5]
- China
- United Kingdom, the Cloughton Formation (Jurassic period).
- United States
References
- ↑ Early Cretaceous macrofloras of Western Australia
- ↑ Pott, Christian; Kerp, Hans; Krings, Michael (2007). "Morphology and epidermal anatomy of Nilssonia (cycadalean foliage) from the Upper Triassic of Lunz (Lower Austria)". Review of Palaeobotany and Palynology. 143 (3–4): 197–217. doi:10.1016/j.revpalbo.2006.07.007.
- ↑ Cleal, Christopher J; Rees, P. Mcallister; Zijlstra, Gea; Cantrill, David J (2006). "A Clarification of the Type of Nilssoniopteris Nathorst (Fossil Gymnospermophyta, Bennettitales)". Taxon. 55 (1): 219–22. doi:10.2307/25065546. JSTOR 25065546.
- ↑ The Cycads, Cycadeoids (Bennettitales) and Ginkgophytes
- ↑ Passo das Tropas, Santa Maria, RS. Marco bioestratigráfico triássico na evolução paleoflorística do Gondwana na Bacia do Paraná
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