Gnathichnus is a trace fossil on a hard substrate (typically a shell, rock or hardground made of calcium carbonate) formed by regular echinoids as they scraped the surface with their five-toothed Aristotle's Lantern feeding structures (Bromley, 1975).
| Gnathichnus | |
|---|---|
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| Gnathichnus pentax echinoid trace fossil on an oyster from the Cenomanian of Hamakhtesh Hagadol, southern Israel. | |
Trace fossil classification 
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| Ichnofamily: | †Gnathichnidae |
| Ichnogenus: | †Gnathichnus Bromley, 1975 |
| Type ichnospecies | |
| Gnathichnus pentax Bromley, 1975
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| Synonyms[1] | |
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References edit
- ^ Wisshak, M.; Knaust, D.; Bertling, M. (2019). "Bioerosion ichnotaxa: review and annotated list". Facies. 65 (2): 24. doi:10.1007/s10347-019-0561-8.
- Bromley, R.G. (1975). "Comparative analysis of fossil and recent echinoid bioerosion". Palaeontology. 18: 725–739.
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