---
title: Fossils — a lesson of Mova's school · trees and pragmatics
description: «Fossils», a lesson of the geography course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: A fossil is a message from a living thing that died long ago, usually more than 10,000 years ago.
---

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# Fossils

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Lesson 57 of the geography course of Mova's primary school: 19 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/geography/57-fossils/).

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- [0](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/0/) — A fossil is a message from a living thing that died long ago, usually more than 10,000 years ago.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/1/) — It can be a bone or shell turned to stone, a print of a leaf, or even a footprint.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/2/) — Most fossils form when a dead animal or plant is buried quickly in mud or sand, before it rots or gets eaten.
- [3](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/3/) — Layer after layer piles on top, the mud slowly turns to rock, and minerals soak into the bones and shells.
- [4](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/4/) — Picture Mary Anning, a girl from a poor family in Lyme Regis, hunting along stormy cliffs in the early 1800s.
- [5](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/5/) — She found the first complete ichthyosaur skeletons, giant sea reptiles, and gentlemen scientists wrote papers about her finds, often without her name.
- [6](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/6/) — Because so few living things are buried just right, only a tiny fraction ever become fossils.
- [7](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/7/) — Still, they tell us that many dinosaurs had feathers and that birds are living dinosaurs.
- [8](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/8/) — A fossil is the preserved remains or trace of a living thing from long ago, usually over 10,000 years old.
- [9](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/9/) — Most fossils form when a dead plant or animal is quickly buried in mud or sand, which later turns to rock.
- [10](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/10/) — Only a tiny fraction of living things ever become fossils.
- [11](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/11/) — Trace fossils record what animals did, such as footprints, burrows and even fossil dung.
- [12](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/12/) — Ammonites were sea creatures with coiled shells, related to squid, and are very common fossils.
- [13](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/13/) — Mary Anning, a working-class woman from Lyme Regis, found the first complete ichthyosaur skeletons in the early 1800s.
- [14](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/14/) — Some fossils are used to date rocks, because the species lived only for a short time but spread widely.
- [15](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/15/) — Some fossils keep soft parts: insects trapped in amber, and woolly mammoths frozen in Siberian ice.
- [16](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/16/) — The first dinosaur to be scientifically named was Megalosaurus, in England in 1824.
- [17](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/17/) — Many dinosaurs had feathers, and birds are living dinosaurs.
- [18](https://md.mova.elamur.ai/free/en/corpora/school/geography/57-fossils/18/) — Long before science, people explained fossils with legends, such as griffins, perhaps from beaked dinosaur skulls found in the deserts of Central Asia, or "snakestones" from ammonites.

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