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Ognimdo2002 — Umaltolepis vachrameevii

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Published: 2023-11-10 07:33:20 +0000 UTC; Views: 781; Favourites: 16; Downloads: 2
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Description “ We were soon free of the woods and bushes, and fairly upon the broad prairie. ”– Francis Parkman

Umaltolepis is an extinct genus of seed plant, known from the Early Jurassic to Early Cretaceous of Asia.

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Physiology
It refers to the seed-bearing reproductive structures that developed on woody plants with strap-shaped leaves resembling Ginkgo that are classified to the genus Pseudotorellia in the paleobotanical form classification system.

Umaltolepis was made up of a thick, resinous cupule with four lobes that resembled an umbrella and was carried atop a stalk-like column that was joined to the end of a short shoot. Typically, the cupule measures up to 1 centimeter (0.39 in) in width and 2 centimeters (0.79 in) in length. The column was encased by four lobes that led to a flared structure that resembled a flange.

Abilities
The structure became four-angled near the top of the column, close to the cupule attachment, and each of the four faces carried a loosely connected winged seed. It is most likely that a hanging pollination drop was used to pollinate the umaltolepis plant by wind.

Distribution and Habitat

The mysterious prehistoric plant Umaltolepis has mysterious leaves resembling ginkgo, but its seed-bearing structures are distinct and more like to those of some extinct Peltaspermales and Umkomasiales, according to new research on the Early Cretaceous of Mongolia. In Yima, Henan Province, Central China, we report new material from Umaltolepis and Pseudotorellia from the Middle Jurassic Yima Formation.

It is known that the Umaltolepis-Pseudotorellia plant has grown in fluvio-lacustrine habitats as well as peat bogs.

Reference



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