Pelourdea

Pelourdea
Temporal range: Triassic-Middle Jurassic
~252–164 Ma
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Genus: †Pelourdea
Seward 1917
Species

P. megaphylla[1]
P. ploeoensis[2]
P. vogesiaca[3]

Pelourdea is an extinct genus of conifer. Species belonging to the genus lived from the Triassic[4] to the Middle Jurassic[1] and have been found in Europe[1] and North America.[5]

Members of the genus have long pointed leaves (up to 322 millimeters (12.7 in) long and 32 millimeters (1.3 in) wide) whose base clasps a central shoot. The attachments are spiral.[1] The shoots were 30 to 100 centimeters (12 to 39 in) in height and the plant was likely herbaceous.[2]

The lack of reproductive structures in known fossils have hindered determination of the taxonomy.[1]

References

  1. ^ a b c d e Cleal, C. J.; Rees, P. M. (July 2003). "The Middle Jurassic flora from Stonesfield, Oxfordshire, UK". Palaeontology. 46 (4): 739–801. Bibcode:2003Palgy..46..739C. doi:10.1111/1475-4983.00319. S2CID 129569932.
  2. ^ a b Ash, Sidney R. (January 1987). "Growth habit and systematics of the upper triassic plant Pelourdea poleoensis, Southwestern U.S.A.". Review of Palaeobotany and Palynology. 51 (1–3): 37–49. Bibcode:1987RPaPa..51...37A. doi:10.1016/0034-6667(87)90018-2.
  3. ^ Labandeira, Conrad C.; Kustatscher, Evelyn; Wappler, Torsten (2016-11-09). "Floral Assemblages and Patterns of Insect Herbivory during the Permian to Triassic of Northeastern Italy". PLOS ONE. 11 (11): e0165205. Bibcode:2016PLoSO..1165205L. doi:10.1371/journal.pone.0165205. ISSN 1932-6203. PMC 5102457. PMID 27829032.
  4. ^ Kustatscher, Evelyn; Ash, Sidney R.; Karasev, Eugeny; Pott, Christian; Vajda, Vivi; Yu, Jianxin; McLoughlin, Stephen (2018), Tanner, Lawrence H. (ed.), "Flora of the Late Triassic", The Late Triassic World, vol. 46, Cham: Springer International Publishing, pp. 545–622, doi:10.1007/978-3-319-68009-5_13, ISBN 978-3-319-68008-8, retrieved 2022-01-22
  5. ^ Velasco-de León, Maria Patricia; Ortiz-Martínez, Erika L.; Lozano-Carmona, Diego E.; Flores-Barragan, Miguel A. (August 2019). "Paleofloristic comparison of the Ayuquila and Otlaltepec basins, Middle Jurassic, Oaxaca, Mexico". Journal of South American Earth Sciences. 93: 1–13. Bibcode:2019JSAES..93....1V. doi:10.1016/j.jsames.2019.04.008. S2CID 149686009.


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