science

Neviusia dunthornei

Neviusia dunthornei is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Neviusia dunthornei rather than just read about it. In short: Neviusia dunthornei is an extinct species of flowering plants in the family Rosaceae. The species is solely known from the early Eocene, Ypresian stage, Allenby Formation Lacustrine deposits near the town of Princeton, British Columbia.

Key takeaways

Neviusia dunthornei belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Neviusia dunthornei to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Neviusia dunthornei from memory before moving on to harder problems.

Reference excerpt

Neviusia dunthornei is an extinct species of flowering plants in the family Rosaceae. The species is solely known from the early Eocene, Ypresian stage, Allenby Formation Lacustrine deposits near the town of Princeton, British Columbia.

History and classification Neviusia dunthornei is known from only two fossils, the holotype, number "UWBM 54169", and the paratype number "UWBM 97148". Both specimens are preserved in the paleobotanical collections housed in the Burke Museum of Natural History and Culture, part of the University of Washington in Seattle, Washington, USA. The species was described from the two leaf specimens found at the One Mile Creek locality, UWBM number 53355 in 1991 by Wesley Wehr and Peter Dunthorne. This locality is in the early Eocene Allenby Formation, designated the type locality. The Allenby Formation is part of the Eocene Okanogan Highlands floras which span from the Klondike Mountain Formation in Ferry County, Washington north-west to Driftwood Canyon Provincial Park near Smithers, British Columbia. The specimens were studied by paleobotanists Melanie L. DeVore and Steven M. Moore of Georgia College and State University, Kathleen B. Pigg of Arizona State University and Wesley C. Wehr of the Burke Museum. Melanie DeVore and coauthors published the 2004 type description for N. dunthornei in the journal Rhodora. Melanie DeVore and coauthors chose the specific name dunthornei, in honor of Peter Dunthorne of Sedro-Woolley, Washington in recognition of the collecting work throughout the Okanagan highlands which he helped and participated with. The holotype of Neviusia dunthornei is a complete leaf though the leaf blade is folded near the base, while the paratype is more fragmentary. Together the two compression-impression fossil leaves, preserved in light green-grey shale display the leaf shape, margin, and morphology of the vein structure and teeth. The overall morphology and structure of the N. dunthornei leaves compare to the living species known as the Shasta snow-wreath (N. cliftonii), being broadly ovate, with secondary veins subopposite and a similar overall vein patterning. The leaf margins are serrate with two to three orders of teeth present. Unlike N. dunthornei the leaves of N. alabamensis are in general more elongate with finer teeth and secondary veins which are more alternate. N. dunthornei differs from both modern genera in the leaves having an overall thicker midrib. The presence of Neviusia in the Eocene Okanogan Highlands floras suggests the tribe Kerrieae originated in Asia and radiated to North America but did not become a major floristic component. This is supported by the absence of any Kerrieae tribe genera in the Mississippi embayment Eocene formations such as the Claiborne Formation.

References

Worked examples

Example 1 — a first encounter with Neviusia dunthornei

Start with the simplest possible case. Write down what Neviusia dunthornei claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Neviusia dunthornei before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Neviusia dunthornei ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Neviusia dunthornei

In research: Neviusia dunthornei appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Neviusia dunthornei in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Neviusia dunthornei is common in secondary-school and first-year university syllabi. It links to neighbouring topics Allenby Formation, Eocene plants, Extinct flora of North America, so understanding it makes those chapters shorter.
In everyday life: Look for Neviusia dunthornei outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Neviusia dunthornei in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Neviusia dunthornei means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Neviusia dunthornei out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Neviusia dunthornei in simple terms?

Why does Neviusia dunthornei matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Neviusia dunthornei?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Neviusia dunthornei.