Pelourdea

{{Short description|Extinct genus of conifer}}

{{Automatic taxobox

| fossil_range = Triassic-Middle Jurassic
~{{fossil range|252|164}}

| taxon = Pelourdea

| authority = Seward 1917

| subdivision_ranks = Species

| subdivision = P. megaphylla{{cite journal |last1=Cleal |first1=C. J. |last2=Rees |first2=P. M. |title=The Middle Jurassic flora from Stonesfield, Oxfordshire, UK |journal=Palaeontology |date=July 2003 |volume=46 |issue=4 |pages=739–801 |doi=10.1111/1475-4983.00319|s2cid=129569932 |doi-access=free |bibcode=2003Palgy..46..739C }}
P. ploeoensis{{cite journal |last1=Ash |first1=Sidney R. |title=Growth habit and systematics of the upper triassic plant Pelourdea poleoensis, Southwestern U.S.A. |journal=Review of Palaeobotany and Palynology |date=January 1987 |volume=51 |issue=1–3 |pages=37–49 |doi=10.1016/0034-6667(87)90018-2|bibcode=1987RPaPa..51...37A }}
P. vogesiaca{{Cite journal|last1=Labandeira|first1=Conrad C.|last2=Kustatscher|first2=Evelyn|last3=Wappler|first3=Torsten|date=2016-11-09|title=Floral Assemblages and Patterns of Insect Herbivory during the Permian to Triassic of Northeastern Italy|journal=PLOS ONE|language=en|volume=11|issue=11|pages=e0165205|doi=10.1371/journal.pone.0165205|issn=1932-6203|pmc=5102457|pmid=27829032|bibcode=2016PLoSO..1165205L|doi-access=free}}

}}

Pelourdea is an extinct genus of conifer. Species belonging to the genus lived from the Triassic{{Citation|last1=Kustatscher|first1=Evelyn|title=Flora of the Late Triassic|date=2018|url=http://link.springer.com/10.1007/978-3-319-68009-5_13|work=The Late Triassic World|volume=46|pages=545–622|editor-last=Tanner|editor-first=Lawrence H.|place=Cham|publisher=Springer International Publishing|language=en|doi=10.1007/978-3-319-68009-5_13|isbn=978-3-319-68008-8|access-date=2022-01-22|last2=Ash|first2=Sidney R.|last3=Karasev|first3=Eugeny|last4=Pott|first4=Christian|last5=Vajda|first5=Vivi|last6=Yu|first6=Jianxin|last7=McLoughlin|first7=Stephen}} to the Middle Jurassic and have been found in Europe and North America.{{Cite journal|last1=Velasco-de León|first1=Maria Patricia|last2=Ortiz-Martínez|first2=Erika L.|last3=Lozano-Carmona|first3=Diego E.|last4=Flores-Barragan|first4=Miguel A.|date=August 2019|title=Paleofloristic comparison of the Ayuquila and Otlaltepec basins, Middle Jurassic, Oaxaca, Mexico|url=https://linkinghub.elsevier.com/retrieve/pii/S0895981119300458|journal=Journal of South American Earth Sciences|language=en|volume=93|pages=1–13|doi=10.1016/j.jsames.2019.04.008|bibcode=2019JSAES..93....1V|s2cid=149686009}}

Members of the genus have long pointed leaves (up to {{convert|322|mm||sp=us}} long and {{convert|32|mm||sp=us}} wide) whose base clasps a central shoot. The attachments are spiral. The shoots were {{convert|30 to 100|cm||sp=us}} in height and the plant was likely herbaceous.

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