# Observations on the Terataspis grandis, Hall, the largest known trilobite

Author: Clarke, John Mason, 1857-1925

Genre: Category: Science - Biology

Language: English

License: Public domain

Source: https://www.gutenberg.org/ebooks/67196

Amazon editions: https://www.amazon.com/s?k=Observations+on+the+Terataspis+grandis%2C+Hall%2C+the+largest+known+trilobite+Clarke&tag=cyberlibrar00-20

## Summary

of the thorax and the pygidium, and according to the restoration there given the original length of the animal must have been well nigh 15 inches. The later and common Hamilton species, _H. DeKayi_, attained no extravagant size though frequently large, e. g. the enrolled individual figured on plate IV (_op. cit._), the largest entire specimen reported, which is about 9 inches in length; some large fragments indicate that the animal was sometimes as long as 11 inches.

## Chapters

- [Volume VII (_op. cit._), which from the restoration there given, made](https://www.cyberlibrary.org/en/books/observations-on-the-terataspis-grandis-hall-the-largest-known-t-67288086/chapters/2/index.md)
- [Volume VII (plate V A), a large fragment representing the greater part](https://www.cyberlibrary.org/en/books/observations-on-the-terataspis-grandis-hall-the-largest-known-t-67288086/chapters/1/index.md)