Tremichnus

Tremichnus
Trace fossil classification
Ichnofamily:	†Centrichnidae
Ichnogenus:	†Tremichnus; Brett, 1985
Type ichnospecies
	Tremichnus paraboloides; Brett, 1985
Ichnospecies
	T. paraboloides Brett, 1985; T. puteolus Brett, 1985; T. excavatus (Donovan & Jagt, 2002);
Synonyms
	Balticapunctum Rozhnov, 1989;

Tremichnus is an ichnogenus or trace fossil. It is an embedment structure (i.e. bioclaustration) formed by an organism that inhibited growth of the crinoid host stereom. The most common endobiotic symbiont in Paleozoic crinoids is Tremichnus.^[2]^[3]

References

^ ^a ^b Wisshak, M.; Knaust, D.; Bertling, M. (2019). "Bioerosion ichnotaxa: review and annotated list". Facies. 65 (2): 24. doi:10.1007/s10347-019-0561-8.
^ Brett C.E. 1978. Host-specific pit-forming epizoans on Silurian crinoids. Lethaia, 11, 217–232.
^ Brett C.E. 1985. Tremichnus: a new ichnogenus of circular-parabolic pits in fossil echinoderms. Journal of Paleontology, 59, 625–635.

Vinn, O.; Wilson, M.A.; Auscih, W.I.; Toom, U. (2015). "Tremichnus in crinoid pluricolumnals from the Silurian of western Estonia (Baltica)". Carnets de Géologie. 15 (17): 239–243. doi:10.4267/2042/57951. Retrieved 2015-12-04.

[Bioerosion2019-1] Wisshak, M.; Knaust, D.; Bertling, M. (2019). "Bioerosion ichnotaxa: review and annotated list". Facies. 65 (2): 24. doi:10.1007/s10347-019-0561-8.

[2] Brett C.E. 1978. Host-specific pit-forming epizoans on Silurian crinoids. Lethaia, 11, 217–232.

[3] Brett C.E. 1985. Tremichnus: a new ichnogenus of circular-parabolic pits in fossil echinoderms. Journal of Paleontology, 59, 625–635.

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