biology

Intasuchus

Intasuchus 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 Intasuchus rather than just read about it. In short: Intasuchus is an extinct genus of temnospondyl amphibian from the Middle Permian of Russia. It is known from a single species, Intasuchus silvicola, which was named in 1956.

Key takeaways

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

Reference excerpt

Intasuchus is an extinct genus of temnospondyl amphibian from the Middle Permian of Russia. It is known from a single species, Intasuchus silvicola, which was named in 1956. Intasuchus belongs to the family Intasuchidae and is probably its sole member, although other taxa such as Syndyodosuchus and Cheliderpeton have been assigned to the family in the past. Intasuchus most likely belongs to the group Archegosauroidea, Permian relatives of the large, mostly Mesozoic temnospondyl clade Stereospondyli.

Description Intasuchus has a long, flattened skull that narrows slightly toward the front. Prominent ridges run along the skull surface from the eye sockets to the nostril openings. The otic notch at the back of the skull is relatively narrow in comparison to other temnospondyls, although it extends as a groove along the sides of the skull table. Intasuchus has large teeth on the roof of its mouth, with a large row between two openings of the palate called choanae, tusks on the palatine bones, and small teeth extending along the ectopterygoid.

Classification The phylogenetic analysis of Schoch and Milner (2000) placed Intasuchus as a basal member of a group called Archegosauriformes. It was placed among archegosauroids, although Archegosauroidea was found to be a paraphyletic assemblage of taxa basal to Stereospondyli. Intasuchus silvicola was recovered as the sister taxon of Cheliderpeton latirostre (now known as Glanochthon latirostre). Below is a cladogram from that analysis:

References

Illustrations

Worked examples

Example 1 — a first encounter with Intasuchus

Start with the simplest possible case. Write down what Intasuchus 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 Intasuchus 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 Intasuchus 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 Intasuchus

In research: Intasuchus 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 Intasuchus 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: Intasuchus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fossil taxa described in 1956, Fossils of Russia, Monotypic prehistoric amphibian genera, so understanding it makes those chapters shorter.
In everyday life: Look for Intasuchus 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 Intasuchus in 20 minutes

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

Frequently asked questions

What is Intasuchus in simple terms?

Intasuchus is an extinct genus of temnospondyl amphibian from the Middle Permian of Russia. It is known from a single species, Intasuchus silvicola, which was named in 1956.

Why does Intasuchus 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 Intasuchus?

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 Intasuchus.