Pelourdea

Pelourdea; Temporal range: Triassic-Middle Jurassic; ~
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
(unranked):	Gymnosperms
Division:	Pinophyta
Class:	Pinopsida
Order:	Pinales
Family:	†Pelourdeaceae
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[3] to the Middle Jurassic[1] and have been found in Europe[1][3] and North America.[2]

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] However, associated sediments contain pollen cones and "one-seeded" scales suggesting affinity with early conifers, and Wachtler assigned the genus to a new family (Pelourdeaceae) within the order Pinales in 2016.[3]

References

Cleal, C. J.; Rees, P. M. (July 2003). "The Middle Jurassic flora from Stonesfield, Oxfordshire, UK". Palaeontology. 46 (4): 739–801. doi:10.1111/1475-4983.00319.
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. doi:10.1016/0034-6667(87)90018-2.
Wachtler, M. (2016). "What is related to the Permo-Triassic Voltziales?". In Wachtler, M.; Perner, T. (eds.). Fossil Triassic Plants from Europe and their Evolution (PDF). 1. Dolomythos Museum. pp. 100–113. Retrieved 18 November 2021.

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[ClealRees2003-1] Cleal, C. J.; Rees, P. M. (July 2003). "The Middle Jurassic flora from Stonesfield, Oxfordshire, UK". Palaeontology. 46 (4): 739–801. doi:10.1111/1475-4983.00319.

[Ash1987-2] 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. doi:10.1016/0034-6667(87)90018-2.

[Wachtler2016-3] Wachtler, M. (2016). "What is related to the Permo-Triassic Voltziales?". In Wachtler, M.; Perner, T. (eds.). Fossil Triassic Plants from Europe and their Evolution (PDF). 1. Dolomythos Museum. pp. 100–113. Retrieved 18 November 2021.