graptolite: meaning, definition, pronunciation and examples
Very LowTechnical/Scientific
Quick answer
What does “graptolite” mean?
Any member of an extinct group of colonial marine invertebrates, chiefly from the Paleozoic Era, whose fossil remains resemble pencil markings on rock.
Audio
Pronunciation
Definition
Meaning and Definition
Any member of an extinct group of colonial marine invertebrates, chiefly from the Paleozoic Era, whose fossil remains resemble pencil markings on rock.
Used in geology and paleontology to refer to the fossil remains of these organisms, which are important as index fossils for dating rock strata.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Pronunciation differs (see IPA).
Connotations
Purely scientific/technical in both variants. No cultural or additional connotations.
Frequency
Equally rare in both UK and US English, confined to geological and paleontological literature and education.
Grammar
How to Use “graptolite” in a Sentence
The {rock layer} contains {numerous} graptolites.{Scientists} use graptolites to {date} the {formation}.Vocabulary
Collocations
Examples
Examples of “graptolite” in a Sentence
verb
British English
- [No standard verb form]
American English
- [No standard verb form]
adverb
British English
- [No adverb form]
American English
- [No adverb form]
adjective
British English
- graptolitic (as in 'graptolitic shale')
American English
- graptolitic (as in 'graptolitic fauna')
Usage
Meaning in Context
Business
Not used in business contexts.
Academic
Used in paleontology, geology, and earth science research and teaching to describe and classify key index fossils.
Everyday
Almost never used in everyday conversation.
Technical
The primary context. Specific to geological surveys, stratigraphic analysis, and paleontological studies.
Vocabulary
Synonyms of “graptolite”
Vocabulary
Antonyms of “graptolite”
Watch out
Common Mistakes When Using “graptolite”
- Mispronunciation (e.g., 'grap-toe-light').
- Misspelling as 'grapotolite' or 'graptolyte'.
- Assuming it is a type of rock or mineral rather than a fossilized organism.
FAQ
Frequently Asked Questions
No, graptolites are an entirely extinct group. The last species died out around 320 million years ago.
It comes from Greek 'graptos' (written) and 'lithos' (stone), meaning 'written on stone', referring to their scribble-like fossil appearance.
They evolved rapidly and were widespread, making their fossils excellent markers for dating and correlating Paleozoic rock strata worldwide.
They are common in certain Paleozoic shales and mudstones, but they are small and require careful searching or microscopic study to identify properly.
Any member of an extinct group of colonial marine invertebrates, chiefly from the Paleozoic Era, whose fossil remains resemble pencil markings on rock.
Graptolite is usually technical/scientific in register.
Graptolite: in British English it is pronounced /ˈɡræptə(ʊ)lʌɪt/, and in American English it is pronounced /ˈɡræptəˌlaɪt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Imagine a GRAPH drawn with a PENCIL on a rock (LITE/light coloured). GRAPTOlite fossils look like pencil-drawn graphs.
Conceptual Metaphor
A graptolite colony is a 'living writing' on the sea floor (from Greek 'graptos' meaning 'written').
Practice
Quiz
What is a graptolite primarily used as in geology?