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Sapindopsis

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Sapindopsis
Temporal range: Early Cretaceous–Late Cretaceous
Sapindopsis fossil, National Museum of Natural History
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Platanaceae
Genus: Sapindopsis
(Fontaine) Dilcher and Basson 1990[1]
Type species
Sapindopsis magnifolia
Fontaine, 1889
Species
  • See text

Sapindopsis ("Sapindus-like") is an extinct form genus for leaves of the Cretaceous Period, originally considered similar to soapberry. Associated reproductive structures now suggest it was more closely related to planes and sycamores of the family Platanaceae.[2]

Description

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In the form generic system of paleobotany Sapindopsis is used only for leaves, which are compound with three to six leaflets. Leaflets vary in distinctness or confluence with the midrib. The venation is pinnate, eucamptodromous to brochidodromus, with percurrent tertiary veins.

Distribution and species

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Sapindopsis was geographically widespread from Asia to North America. Species include:

References

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  1. ^ a b c Dilcher, D.L.; Basson, P.W. (1990). "mid Cretaceous angiosperm leaves from a new locality in Lebanon". Botanical Gazette. 151: 538–547. doi:10.1086/337855. S2CID 84242346.
  2. ^ a b c Wang, H.-S.; Dilcher, D.L. (2018). "Early Cretaceous angiosperm leaves from the Dakota Formation, Hoisington III locality, Kansas, USA" (PDF). Palaeontologia Electronica. 31.3.34A: 1–49. doi:10.26879/841. Retrieved 2018-11-25.
  3. ^ Budantsev, L. Y. (1983). History of the Arctic flora of the Early Cainozoic. Leningrad: Izdatel'stvo "Nauka", Leningradskoe otdelenie.
  4. ^ Seward, A.C.; Conway, V.M. (1935). "Additional Cretaceous plants from Western Greenland". Kongliga Svenska Vetenskaps Academiens Handlingar. 15 (3): 1–41.
  5. ^ a b c Golovneva, Lina B.; Volynets, Elena B.; Zolina, Anastasia A.; Sun, Yuewu (2022-10-11). "New species of Sapindopsis Fontaine (Platanaceae) from the mid-Cretaceous of northeastern Asia and their paleogeographical and evolutionary implications". Cretaceous Research. 142: 105391. doi:10.1016/j.cretres.2022.105391. ISSN 0195-6671. S2CID 252861479.
  6. ^ Fontaine, W. (1889). The Potomac or younger Mesozoic flora (Report). Monographs. Vol. 15. United States Geological Survey. pp. 1–377. doi:10.3133/m15.
  7. ^ Huegele, Indah B.; Wang, Hongshan (2023-02-01). "An unusual plane tree from the Early Cretaceous of Kansas, USA". Review of Palaeobotany and Palynology. 309: 104815. Bibcode:2023RPaPa.30904815H. doi:10.1016/j.revpalbo.2022.104815. ISSN 0034-6667. S2CID 254090176.