biology

Pomatodelphis

Pomatodelphis 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 Pomatodelphis rather than just read about it. In short: Pomatodelphis is an extinct genus of river dolphin from Middle Miocene marine deposits in Alabama, Maryland, Florida, Brazil, Germany, and France. Etymology Pomatodelphis may be a typo for potamodelphis ("river dolphin") from potamo-, "river", and δελφίς, delphis "dolphin".

Key takeaways

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

Reference excerpt

Pomatodelphis is an extinct genus of river dolphin from Middle Miocene marine deposits in Alabama, Maryland, Florida, Brazil, Germany, and France.

Etymology Pomatodelphis may be a typo for potamodelphis ("river dolphin") from potamo-, "river", and δελφίς, delphis "dolphin".

Classification Pomatodelphis belongs to the platanistid subfamily Pomatodelphininae, which is distinguished from the South Asian river dolphin in having a flattened rostrum, a transversely expanded posterior end of the premaxilla, an eye and bony orbit of normal size (not atrophied), and nasal bones not reduced in size but wide transversely. A close relative of Pomatodelphis is Prepomatodelphis from marine deposits in Austria. Three species are known, P. inaequalis, P. bobengi, and P. stenorhynchus.

Fossil distribution Fossils of Pomatodelphis have been found in:

Citronelle Formation (Hemphillian), Alabama Solimões Formation (Huayquerian), Brazil Marks Head, Peace River and Statenhead Formations, Florida France Germany

References

Illustrations

Worked examples

Example 1 — a first encounter with Pomatodelphis

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

In research: Pomatodelphis 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 Pomatodelphis 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: Pomatodelphis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fossil taxa described in 1921, Fossils of Brazil, Fossils of France, so understanding it makes those chapters shorter.
In everyday life: Look for Pomatodelphis 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 Pomatodelphis in 20 minutes

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

Frequently asked questions

What is Pomatodelphis in simple terms?

Pomatodelphis is an extinct genus of river dolphin from Middle Miocene marine deposits in Alabama, Maryland, Florida, Brazil, Germany, and France. Etymology Pomatodelphis may be a typo for potamodelphis ("river dolphin") from potamo-, "river", and δελφίς, delphis "dolphin".

Why does Pomatodelphis 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 Pomatodelphis?

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 Pomatodelphis.