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A new resting trace of echiuran worms from the Paleocene turbiditic deposits of the Northern Apennines and the Polish Outer Carpathians
Journal
Acta Geologica Polonica
100
Author
Uchman Alfred
Rattazz Bruno
Volume
76
Number
2
Article ID
e78
ISSN
0001-5709
Keywords in English
ichnology
ichnotaxonomy
fossil behaviour
flysch
echiura
Language
English
Journal language
English
Abstract in English
A new trace fossil, Cochlearichnus tumidus igen. nov. et isp. nov., is described from Paleocene deep-sea deposits of the Ropianka Formation (Magura Nappe, Polish Outer Carpathians) and the Pagliaro Formation (Northern Apennines, Italy). The trace occurs in fine-grained turbiditic sandstones and is preserved as a hypichnial convex semi-relief with a consistent spoon-shaped outline. Comparison with the body outlines of extant echiuran worms indicates that C. tumidus igen. nov. et isp. nov. represents a resting trace, most likely produced by a deep-sea echiuran inhabiting soft, muddy substrates. The structure was formed in mud and subsequently scoured and cast by turbiditic sand. The deposits bearing this trace fossil are characterized by the Paleodictyon ichnosubfacies within the Nereites ichnofacies, typical of distal parts of the turbiditic depositional systems.
Affiliation
Wydział Geografii i Geologii : Instytut Nauk Geologicznych
| dc.abstract.en | A new trace fossil, Cochlearichnus tumidus igen. nov. et isp. nov., is described from Paleocene deep-sea deposits of the Ropianka Formation (Magura Nappe, Polish Outer Carpathians) and the Pagliaro Formation (Northern Apennines, Italy). The trace occurs in fine-grained turbiditic sandstones and is preserved as a hypichnial convex semi-relief with a consistent spoon-shaped outline. Comparison with the body outlines of extant echiuran worms indicates that C. tumidus igen. nov. et isp. nov. represents a resting trace, most likely produced by a deep-sea echiuran inhabiting soft, muddy substrates. The structure was formed in mud and subsequently scoured and cast by turbiditic sand. The deposits bearing this trace fossil are characterized by the Paleodictyon ichnosubfacies within the Nereites ichnofacies, typical of distal parts of the turbiditic depositional systems. | |
| dc.affiliation | Wydział Geografii i Geologii : Instytut Nauk Geologicznych | |
| dc.contributor.author | Uchman, Alfred - 132472 | |
| dc.contributor.author | Rattazz, Bruno | |
| dc.date.accessioned | 2026-09-21T11:30:53Z | |
| dc.date.available | 2026-09-21T11:30:53Z | |
| dc.date.createdat | 2026-09-09T15:22:36Z | en |
| dc.date.issued | 2026 | |
| dc.date.openaccess | 0 | |
| dc.description.accesstime | w momencie opublikowania | |
| dc.description.number | 2 | |
| dc.description.sponsorshipidub | idub_yes | |
| dc.description.version | ostateczna wersja wydawcy | |
| dc.description.volume | 76 | |
| dc.identifier.articleid | e78 | |
| dc.identifier.doi | 10.24425/agp.2026.158192 | |
| dc.identifier.issn | 0001-5709 | |
| dc.identifier.uri | https://ruj.uj.edu.pl/handle/item/582384 | |
| dc.language | eng | |
| dc.language.container | eng | |
| dc.rights | Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa | |
| dc.rights.licence | CC-BY | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/legalcode.pl | |
| dc.share.type | otwarte czasopismo | |
| dc.source.integrator | false | |
| dc.subject.en | ichnology | |
| dc.subject.en | ichnotaxonomy | |
| dc.subject.en | fossil behaviour | |
| dc.subject.en | flysch | |
| dc.subject.en | echiura | |
| dc.subtype | Article | |
| dc.title | A new resting trace of echiuran worms from the Paleocene turbiditic deposits of the Northern Apennines and the Polish Outer Carpathians | |
| dc.title.journal | Acta Geologica Polonica | |
| dc.type | JournalArticle | |
| dspace.entity.type | Publication | en |
dc.abstract.en
A new trace fossil, Cochlearichnus tumidus igen. nov. et isp. nov., is described from Paleocene deep-sea deposits of the Ropianka Formation (Magura Nappe, Polish Outer Carpathians) and the Pagliaro Formation (Northern Apennines, Italy). The trace occurs in fine-grained turbiditic sandstones and is preserved as a hypichnial convex semi-relief with a consistent spoon-shaped outline. Comparison with the body outlines of extant echiuran worms indicates that C. tumidus igen. nov. et isp. nov. represents a resting trace, most likely produced by a deep-sea echiuran inhabiting soft, muddy substrates. The structure was formed in mud and subsequently scoured and cast by turbiditic sand. The deposits bearing this trace fossil are characterized by the Paleodictyon ichnosubfacies within the Nereites ichnofacies, typical of distal parts of the turbiditic depositional systems. dc.affiliation
Wydział Geografii i Geologii : Instytut Nauk Geologicznych dc.contributor.author
Uchman, Alfred - 132472 dc.contributor.author
Rattazz, Bruno dc.date.accessioned
2026-09-21T11:30:53Z dc.date.available
2026-09-21T11:30:53Z dc.date.createdaten
2026-09-09T15:22:36Z dc.date.issued
2026 dc.date.openaccess
0 dc.description.accesstime
w momencie opublikowania dc.description.number
2 dc.description.sponsorshipidub
idub_yes dc.description.version
ostateczna wersja wydawcy dc.description.volume
76 dc.identifier.articleid
e78 dc.identifier.doi
10.24425/agp.2026.158192 dc.identifier.issn
0001-5709 dc.identifier.uri
https://ruj.uj.edu.pl/handle/item/582384 dc.language
eng dc.language.container
eng dc.rights
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa dc.rights.licence
CC-BY dc.rights.uri
http://creativecommons.org/licenses/by/4.0/legalcode.pl dc.share.type
otwarte czasopismo dc.source.integrator
false dc.subject.en
ichnology dc.subject.en
ichnotaxonomy dc.subject.en
fossil behaviour dc.subject.en
flysch dc.subject.en
echiura dc.subtype
Article dc.title
A new resting trace of echiuran worms from the Paleocene turbiditic deposits of the Northern Apennines and the Polish Outer Carpathians dc.title.journal
Acta Geologica Polonica dc.type
JournalArticle dspace.entity.typeen
Publication Affiliations
Wydział Geografii i Geologii
Uchman, Alfred
Earth and related environmental sciences
No affiliation
Rattazz, Bruno
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