science

Protorabinae

Protorabinae 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 Protorabinae rather than just read about it. In short: Protorabinae is an extinct subfamily of beetles in the family Carabidae. It contains 36 species in 13 genera, all extinct.

Key takeaways

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

Reference excerpt

Protorabinae is an extinct subfamily of beetles in the family Carabidae. It contains 36 species in 13 genera, all extinct.

Genus Aethocarabus Ren; Lu & Guo, 1995 Aethocarabus levigatus Ren; Lu & Guo, 1995 Genus Atrirabus Hong & Wang, 1990 Atrirabus shandongensis Hong & Wang, 1990 Atrirabus tuanwangensis Hong & Wang, 1990 Genus Cordorabus Ponomarenko, 1977 Cordorabus antennatus Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Cordorabus minimus Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Cordorabus notatus Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Cordorabus striatus Ponomarenko, 1986 Gurvan-Eren Formation, Mongolia, Aptian Cordorabus vittatus Ponomarenko, 1980 Mogotuin Formation, Mongolia, Aptian Genus Cretorabus Ponomarenko, 1977 Cretorabus capitatus Ponomarenko, 1977 Zaza Formation, Russia, Aptian Cretorabus latus Ponomarenko, 1977 Zaza Formation, Russia, Aptian Cretorabus medius Hong & Wang, 1990 Cretorabus orientalis Ponomarenko, 1989 Tsagaantsav Formation, Mongolia, Valanginian Cretorabus ovalis Ponomarenko, 1989 Dzun-Bain Formation, Mongolia, Aptian Cretorabus rasnitsyni Wang & Zhang, 2011 Yixian Formation, China, Aptian Cretorabus sulcatus Ponomarenko, Coram & Jarzembowski, 2005 Lulworth Formation, United Kingdom, Berriasian Genus Denudirabus Ren; Lu & Guo, 1995 Denudirabus exstrius Ren; Liu & Guo, 1995 Genus Lirabus Hong, 1992 Lirabus granulatus Hong, 1992 Genus Lithorabus Ponomarenko, 1977 Lithorabus incertus Ponomarenko, 1977 Dzhil Formation, Kyrgyzstan Hettangian Genus Magnirabus Hong & Wang, 1990 Magnirabus furvus Hong & Wang, 1990 Genus Mesorabus Ponomarenko, 1977 Mesorabus elongatus Ponomarenko, 1977 Genus Nebrorabus Ponomarenko, 1989 Nebrorabus baculum Ponomarenko, 1989 Nebrorabus capitatus Ponomarenko, 1989 Nebrorabus elongatus (Ponomarenko, 1986) Nebrorabus nebrioides Ponomarenko, 1989 Genus Ovrabites Ponomarenko, 1977 Ovrabites incertus Ponomarenko, 1993 Emanra Formation, Russia, Turonian Ovrabites jurassicus Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Ovrabites ovalis Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Genus Penecupes Ren, 1995 Penecupes rapax Ren, 1995 Lushangfen Formation, China, Aptian Genus Protorabus Ponomarenko, 1977 Protorabus crassus Ponomarenko, 1989 Daya Formation, Russia, Hauterivian Protorabus kobdoensis Ponomarenko, 1986 Gurvan-Eren Formation, Mongolia, Aptian Protorabus magnus Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Protorabus minisculus Zhang, 1997 Protorabus nigrimonticola Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Protorabus planus Ponomarenko, 1977 Karabastau Formation, Kazakhstan, Callovian/Oxfordian Protorabus polyphlebius Ren, 1995 Lushangfen Formation, China, Aptian Protorabus tsaganensis Ponomarenko, 1989 Dzun-Bain Formation, Mongolia, Aptian

References

Worked examples

Example 1 — a first encounter with Protorabinae

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

In research: Protorabinae 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 Protorabinae 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: Protorabinae is common in secondary-school and first-year university syllabi. It links to neighbouring topics Carabidae subfamilies, Prehistoric arthropod stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Protorabinae 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 Protorabinae in 20 minutes

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

Frequently asked questions

What is Protorabinae in simple terms?

Protorabinae is an extinct subfamily of beetles in the family Carabidae. It contains 36 species in 13 genera, all extinct.

Why does Protorabinae 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 Protorabinae?

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 Protorabinae.