biology

Toxolophosaurus

Toxolophosaurus is a biology 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 Toxolophosaurus rather than just read about it. In short: Toxolophosaurus was a sphenodont which lived in North America during the Early Cretaceous. The first specimen, consisting of a pair of lower jaws, was found by George Cloud and described by Everett C.

Key takeaways

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

Reference excerpt

Toxolophosaurus was a sphenodont which lived in North America during the Early Cretaceous. The first specimen, consisting of a pair of lower jaws, was found by George Cloud and described by Everett C. Olson in 1960 in the Kootenai Formation of Montana, 223.75 feet above the base of the Kootenai. Olson originally classified Toxolophosaurus as a member of the family Trilophosauridae, which was a group of primitive lizard-like reptiles which lived during the Triassic Period, although he provided no reasons for this decision. In 1981, Toxolophosaurus was reassigned to the family Sphenodontidae, on the basis that the specimens were more similar to Sphenodon than to members of Trilophosauridae. This classification was confirmed in 1985 by Michael Benton. It is closely related to Priosphenodon and Eilenodon. In addition to the specimen recovered from Montana, numerous sphenodont fossils which have been ascribed to Toxolophosaurus have also been found within the Yellow Cat Member of the Cedar Mountain Formation. Toxolophosaurus was herbivorous.

Worked examples

Example 1 — a first encounter with Toxolophosaurus

Start with the simplest possible case. Write down what Toxolophosaurus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Toxolophosaurus 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 Toxolophosaurus 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 Toxolophosaurus

In research: Toxolophosaurus appears in biology 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 Toxolophosaurus 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: Toxolophosaurus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Early Cretaceous reptiles of North America, Fossil taxa described in 1960, Prehistoric reptile genera, so understanding it makes those chapters shorter.
In everyday life: Look for Toxolophosaurus 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 Toxolophosaurus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Toxolophosaurus 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 Toxolophosaurus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Toxolophosaurus in simple terms?

Why does Toxolophosaurus matter?

Because it connects several biology 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 Toxolophosaurus?

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 Toxolophosaurus.