Tremichnus

{{Short description|Trace fossil}} {{Ichnobox | fossil_range = | taxon = Tremichnus | authority = Brett, 1985 | type_ichnospecies = Tremichnus paraboloides | type_ichnospecies_authority = Brett, 1985 | subdivision_ranks = Ichnospecies | subdivision_ref = <ref name="Bioerosion2019">{{cite journal|last1=Wisshak|first1=M.|last2=Knaust|first2=D.|last3=Bertling|first3=M.|year=2019|title=Bioerosion ichnotaxa: review and annotated list|journal=Facies|volume=65|issue=2|page=24|doi=10.1007/s10347-019-0561-8}}</ref> | subdivision = * ''T. paraboloides'' {{small|Brett, 1985}} * ''T. puteolus'' {{small|Brett, 1985}} * ''T. excavatus'' {{small|(Donovan & Jagt, 2002)}} | synonyms_ref = <ref name="Bioerosion2019" /> | synonyms = * ''Balticapunctum'' {{small|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''.<ref>Brett C.E. 1978. Host-specific pit-forming epizoans on Silurian crinoids. Lethaia, 11, 217–232.</ref><ref>Brett C.E. 1985. ''Tremichnus'': a new ichnogenus of circular-parabolic pits in fossil echinoderms. Journal of Paleontology, 59, 625–635.</ref>

==References== {{Reflist}} *{{cite journal | doi = 10.4267/2042/57951 | title = ''Tremichnus'' in crinoid pluricolumnals from the Silurian of western Estonia (Baltica) | year = 2015 | author = Vinn, O. | author2 = Wilson, M.A. | author3 = Auscih, W.I. | author4 = Toom, U. | journal = Carnets de Géologie | volume = 15 | issue = 17 | pages = 239–243 | url = http://paleopolis.rediris.es/cg/1517/index.html | accessdate = 2015-12-04| doi-access = free }}

Category:Trace fossils