Palissya: A global review and reassessment of Eastern Gondwanan material

Pattemore, G.A., Rigby, J.F., & Playford, G. (2014) Palissya: A global review and reassessment of Eastern Gondwanan material. Review of Palaeobotany and Palynology, 210, pp. 50-61.

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The conifer genus Palissya is reviewed giving special attention to assessing the reliability of Gondwanan material referred to this genus. The collection localities of Australasian specimens are mapped on palaeogeographic reconstructions of Eastern Gondwana at relevant times between 179 Ma and 119 Ma.

Australasian and other Gondwanan material previously referred to Palissya is considered to differ substantially from the generic diagnosis. Specimens from the Toarcian of Australasia are shown to be allied to Knezourocarpon; this genus is only known from the Toarcian of eastern Australia. Middle Jurassic–Lower Cretaceous Australasian specimens previously referred to Palissya are likely allied to the Knezourocarponaceae fam. nov. The higher taxonomic affinity of this family is unknown but broadly, its structure is suggestive of ginkgoalean or pteridospermous affiliation.

Southern hemisphere specimens were probably catkin-like and megascopically very different from the northern hemisphere Palissya and the two groups are unlikely to be closely related. Consequently, genuine Palissya cones and foliage appear to be restricted to the Rhaetian–Lower Jurassic of the northern hemisphere.

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ID Code: 88862
Item Type: Journal Article
Refereed: Yes
Keywords: Gondwana, Jurassic, Knezourocarpon, Palissya, Palyssia
DOI: 10.1016/j.revpalbo.2014.08.002
ISSN: 0034-6667
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 12 Oct 2015 04:15
Last Modified: 12 Oct 2015 04:15

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