Pelourdea

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]

Pelourdea Temporal range: Triassic-Middle Jurassic ~252–164 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Gymnospermae
Division:	Pinophyta
Genus:	†Pelourdea Seward 1917
Species
P. megaphylla[1] P. ploeoensis[2] P. vogesiaca[3]

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

• Paleontology portal

1. 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. 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.