Biology:Aculea
Aculea is an extinct genus of ferns known from the Cretaceous period, primarily identified through fossil records in places like Antarctica, Australia, and Patagonia.[1][2][3] It includes species such as Aculea acicularis, which formed upright thickets with fronds arising from subterranean rhizomes, often in environments dominated by araucarian trees and other large plants and floodbasins.[1] It's fossils have also been recovered from floodbasin settings, notably from the Eumeralla Formation.[4]
Description
Fossil evidence suggests that individual plants could grow into dense thickets reaching up to 80 cm in height. The fronds were slender and rigid, bearing narrow, acicular (needle-like) pinnae. This morphology likely provided structural support in open or patchy forest environments.[1]
References
- ↑ 1.0 1.1 1.2 Cantrill, David J. (1996-04-01). "Fern thickets from the Cretaceous of Alexander Island, Antarctica containing Alamatus bifarius Douglas and Aculea acicularis sp. nov". Cretaceous Research 17 (2): 169–182. doi:10.1006/cres.1996.0013. ISSN 0195-6671. https://www.sciencedirect.com/science/article/pii/S0195667196900130.
- ↑ DOUGLAS, J.G. (1973). "The Mesozoic Floras of Victoria, Part 3.". Geological Survey of Victoria. https://gsv.vic.gov.au/SearchAssistant2/details?q=internal_id:8783.
- ↑ Passalia, Mauro G. (2007-10-01). "A mid-Cretaceous flora from the Kachaike Formation, Patagonia, Argentina". Cretaceous Research 28 (5): 830–840. doi:10.1016/j.cretres.2006.12.006. ISSN 0195-6671. https://www.sciencedirect.com/science/article/pii/S0195667107000638.
- ↑ Tosolini, Anne-Marie P.; Korasidis, Vera A.; Wagstaff, Barbara E.; Cantrill, David J.; Gallagher, Stephen J.; Norvick, Martin S. (2018-05-01). "Palaeoenvironments and palaeocommunities from Lower Cretaceous high-latitude sites, Otway Basin, southeastern Australia". Palaeogeography, Palaeoclimatology, Palaeoecology 496: 62–84. doi:10.1016/j.palaeo.2018.01.017. ISSN 0031-0182. https://www.sciencedirect.com/science/article/pii/S0031018217306697.
Wikidata ☰ Q61207161 entry
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