Trilobite Anatomy and Eyes: Drawings and Worksheet

Our own drawings of the body, the two ways to split it, legs, roll-up and crystal eyes, eye shapes, a blank labelling sheet, worked examples, a worksheet and answers.

What’s inside:

- Three lobes, three parts

- Lengthways and crossways

- Legs and antennae

- A suit of armour that folds

- Moulting and larvae

- Seeing through stone

- Towers, stalks and super eyes

- Name the parts

- Lengths and lifetimes

- Test yourself

- Worksheet answers

- Credits, licence and sources

Pages: 13 (A4) / 13 (US Letter). Formats: A4 (210 × 297 mm) and US Letter (8.5 × 11 in), both PDFs included in one zip.

Printing: Print at 100% / actual size on A4 or US Letter. Inside pages use light backgrounds and print well in black and white; the cover is dark, so start from page 2 to save ink.

Every fact is written in our own words and checked against named sources from the Natural History Museum, the British Geological Survey, Encyclopaedia Britannica, the UC Museum of Paleontology, Scientific American, the Black Country Geopark and Dudley Council (checked 13 Nov 2026); the sources are listed on the credits page. Where sources give different figures, each is shown with its source. Our own opinions are clearly labelled.

Drawings and charts are our own. Photos are from Wikimedia Commons under Creative Commons or public-domain terms, credited on the credits page. Not affiliated with or endorsed by the Natural History Museum, the British Geological Survey, Encyclopaedia Britannica, the UC Museum of Paleontology, Scientific American, the Black Country Geopark, Dudley Council or any photographer named here.

Licence: personal use. Print as many copies as you need for yourself and your household. Please don’t resell, re-upload or share it publicly. For club, school or commercial use, please email info@reallybyte.com.

Made by REALLYBYTE, the team behind trilobites.fossils.im. Questions: info@reallybyte.com

This is a digital download: no physical item will be shipped.