IRMNG taxon details
original description
Friis, E. M.; Pedersen, K. R. (1996). Eucommiitheca hirsuta, a new pollen organ with Eucommiidites pollen from the Early Cretaceous of Portugal. <em>Grana.</em> 35(2): 104-112., available online at https://doi.org/10.1080/00173139609429480 [details]
taxonomy source
Friis, E. M.; Crane, P. R.; Pedersen, K. R. (2019). Chlamydospermous seeds document the diversity and abundance of extinct gnetalean relatives in Early Cretaceous vegetation. <em>International Journal of Plant Sciences.</em> 180(7): 643-666., available online at https://doi.org/10.1086/704356 note: refer note [details]
current name source
Friis, E. M.; Pedersen, K. R. (1996). Eucommiitheca hirsuta, a new pollen organ with Eucommiidites pollen from the Early Cretaceous of Portugal. <em>Grana.</em> 35(2): 104-112., available online at https://doi.org/10.1080/00173139609429480 [details]
extant flag source
Friis, E. M.; Pedersen, K. R. (1996). Eucommiitheca hirsuta, a new pollen organ with Eucommiidites pollen from the Early Cretaceous of Portugal. <em>Grana.</em> 35(2): 104-112., available online at https://doi.org/10.1080/00173139609429480 [details]
habitat flag source
Friis, E. M.; Pedersen, K. R. (1996). Eucommiitheca hirsuta, a new pollen organ with Eucommiidites pollen from the Early Cretaceous of Portugal. <em>Grana.</em> 35(2): 104-112., available online at https://doi.org/10.1080/00173139609429480 [details]
Unreviewed
Taxonomic remark As at 2022, the taxonomic placement of this order within Gymnospermae is unclear; Friis et al., 2019 refer it to an "informal grouping" together with Bennettitales (=Cycadeoideales in IRMNG) and Gnetales. [details]
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