earth science

Tacuarembó Formation

Tacuarembó Formation is a earth 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 Tacuarembó Formation rather than just read about it. In short: The Tacuarembó Formation is a Late Jurassic (Kimmeridgian) geologic formation of the eponymous department in northern Uruguay. The fluvial to lacustrine sandstones, siltstones and mudstones preserve ichnofossils, turtles, crocodylomorphs, fish and invertebrates (bivalves and gastropods).

Key takeaways

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

Reference excerpt

The Tacuarembó Formation is a Late Jurassic (Kimmeridgian) geologic formation of the eponymous department in northern Uruguay. The fluvial to lacustrine sandstones, siltstones and mudstones preserve ichnofossils, turtles, crocodylomorphs, fish and invertebrates (bivalves and gastropods).

Fossil content The following fossils have been reported from the formation:

Dinosaurs

Theropods

Pterosaurs

Crocodylomorphs

Turtles

Fish

Cartilaginous Fish

Lobe-finned Fish

Ray-finned Fish

Mollusks

Bivalves

Gastropods

Ichnofossils

See also List of fossiliferous stratigraphic units in Uruguay

References

Bibliography Mesa, V.; Perea, D. (2015), "First record of theropod and ornithopod tracks and detailed description of sauropod trackways from the Tacuarembó Formation (Late Jurassic–?Early Cretaceous) of Uruguay", Ichnos, 22 (2): 109–121, doi:10.1080/10420940.2015.1030075 Perea, D.; Soto, M.; Sterli, J.; Mesa, V.; Torino, P.; Roland, G.; Da Silva, J. (2014), "Tacuarembemys kusterae, gen. et sp. nov., a new Late Jurassic-?earliest Cretaceous continental turtle from western Gondwana", Journal of Vertebrate Paleontology, 34 (6): 1329–1341, doi:10.1080/02724634.2014.859620, hdl:11336/21191 Soto, M.; Perea, D.; Torino, P. (2012), "New remains of Priohybodus arambourgi (Hybodontiformes: Hybodontidae) from Late Jurassic-earliest Cretaceous deposits in Uruguay", Cretaceous Research, 35: 118–123, doi:10.1016/j.cretres.2011.12.001 Fortier, D.; Perea, D.; Schultz, C. (2011), "Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay", Zoological Journal of the Linnean Society, 163: S257–S272, doi:10.1111/j.1096-3642.2011.00722.x Soto, M.; Perea, D. (2010), "Late Jurassic lungfishes (Dipnoi) from Uruguay, with comments on the systematics of Gondwanan ceradontiforms", Journal of Vertebrate Paleontology, 30 (4): 1049–1058, doi:10.1080/02724634.2010.483540 Soto, M.; Perea, D. (2008), "A ceratosaurid (Dinosauria, Theropoda) from the Late Jurassic–Early Cretaceous of Uruguay", Journal of Vertebrate Paleontology, 28 (2): 439–444, doi:10.1671/0272-4634(2008)28[439:ACDTFT]2.0.CO;2 Perea, D.; Ubilla, M.; Rojas, A. (2003), "First report of theropods from the Tacuarembó Formation (Late Jurassic–Early Cretaceous), Uruguay", Alcheringa, 27 (2): 79–83, doi:10.1080/03115510308619548 Perea, D.; Ubilla, M.; Rojas, A.; Goso, C.A. (2001), "The West Gondwanan occurrence of the hybodontid shark Priohybodus, and the Late Jurassic–Early Cretaceous age of the Tacuarembó Formation, Uruguay", Palaeontology, 44 (6): 1227–1235, doi:10.1111/1475-4983.00222

Worked examples

Example 1 — a first encounter with Tacuarembó Formation

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

In research: Tacuarembó Formation appears in earth 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 Tacuarembó Formation 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: Tacuarembó Formation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fluvial deposits, Fossiliferous stratigraphic units of South America, Geography of Tacuarembó Department, so understanding it makes those chapters shorter.
In everyday life: Look for Tacuarembó Formation 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 Tacuarembó Formation in 20 minutes

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

Frequently asked questions

What is Tacuarembó Formation in simple terms?

Why does Tacuarembó Formation matter?

Because it connects several earth 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 Tacuarembó Formation?

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 Tacuarembó Formation.