biology

Hemihoplites

Hemihoplites 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 Hemihoplites rather than just read about it. In short: Hemihoplites is an extinct genus of ammonoid cephalopods belonging to the family Hemihoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period, from the Hauterivian age to the Barremian age.

Key takeaways

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

Reference excerpt

Hemihoplites is an extinct genus of ammonoid cephalopods belonging to the family Hemihoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period, from the Hauterivian age to the Barremian age.

Description It is evolute, compressed. The Whorl section is rectangular. The ribs are simple or branching or long or short, well spaced, straight or slightly flexuous, crossing flat venter transversely, typically with distinct umbilical and ventrolateral tubercles.

Species Hemihoplites feraudianus (d'Orbigny, 1841) Hemihoplites mexicanus Imlay, 1940 Hemihoplites ploszkiewiczi Riccardi and Aguirre Urreta, 1989 Hemihoplites soulieri (Matheron, 1878) Hemihoplites varicostatus Riccardi and Aguirre Urreta, 1989

Distribution Fossils of species within this genus have been found in the Cretaceous rocks of Antarctida (Alexander Island), Bulgaria, southeastern France, Mexico, Slovakia, South Africa and Trinidad and Tobago.

References

External links "Hemihoplites". mindat.org. Retrieved 15 June 2022. Wright, Claud William; with John Hannes Callomon and M.K. Howarth (1996). Roger L. Kaesler (ed.). Mollusca 4 Revised, Cretaceous Ammonoidea in Treatise on Invertebrate Paleontology Part L. Boulder, Colorado and Lawrence, Kansas: The Geological Society of America & University of Kansas Press. p. 228.{{cite book}}: CS1 maint: multiple names: authors list (link)

Illustrations

Worked examples

Example 1 — a first encounter with Hemihoplites

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

In research: Hemihoplites 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 Hemihoplites 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: Hemihoplites is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ammonites of Europe, Ammonites of North America, Ammonitida genera, so understanding it makes those chapters shorter.
In everyday life: Look for Hemihoplites 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Hemihoplites” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Hemihoplites in 20 minutes

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

Frequently asked questions

What is Hemihoplites in simple terms?

Why does Hemihoplites 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 Hemihoplites?

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 Hemihoplites.