MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY)
The analysis of 56 specimens of the branched, walled post-depositional trace fossil Rutichnus, sampled from 31 thin-bedded, overbank turbidites from the Verghereto Formation, Romagna Apennines, indicates high morphologic variability of this ichnotaxon in hypichnial preservation. The variability conc...
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| Format: | Article |
| Language: | English |
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Milano University Press
2011-03-01
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| Series: | Rivista Italiana di Paleontologia e Stratigrafia |
| Subjects: | |
| Online Access: | https://riviste.unimi.it/index.php/RIPS/article/view/5968 |
| _version_ | 1827837621980626944 |
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| author | PAOLO MONACO |
| author_facet | PAOLO MONACO |
| author_sort | PAOLO MONACO |
| collection | DOAJ |
| description | The analysis of 56 specimens of the branched, walled post-depositional trace fossil Rutichnus, sampled from 31 thin-bedded, overbank turbidites from the Verghereto Formation, Romagna Apennines, indicates high morphologic variability of this ichnotaxon in hypichnial preservation. The variability concerns the arrangement of outer and inner walls, number and shape of annulations, distribution of pustules, the (false) branching arrangement and the general external shape. Highest variability has been observed mainly in the Rutichnus rutis ichnospecies, clearly less in the R. irregularis ichnospecies that is rare. The Dino-Lite microscope camera analysis of oriented thin sections indicates that endichnial preservation exhibits many structures due to burrowing in soft substrate, destroying laminae of sand. Consequently Rutichnus probably was produced by a worm or arthropod, inducing strong deformation in turbidite sand during the feeding activity on phytodetritus and organic matter transported by the turbidity flow. |
| first_indexed | 2024-03-12T06:47:34Z |
| format | Article |
| id | doaj.art-bd34ff23f2e8423eba58df01a1c4601e |
| institution | Directory Open Access Journal |
| issn | 0035-6883 2039-4942 |
| language | English |
| last_indexed | 2024-03-12T06:47:34Z |
| publishDate | 2011-03-01 |
| publisher | Milano University Press |
| record_format | Article |
| series | Rivista Italiana di Paleontologia e Stratigrafia |
| spelling | doaj.art-bd34ff23f2e8423eba58df01a1c4601e2023-09-03T00:30:28ZengMilano University PressRivista Italiana di Paleontologia e Stratigrafia0035-68832039-49422011-03-01117110.13130/2039-4942/59685283MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY)PAOLO MONACOThe analysis of 56 specimens of the branched, walled post-depositional trace fossil Rutichnus, sampled from 31 thin-bedded, overbank turbidites from the Verghereto Formation, Romagna Apennines, indicates high morphologic variability of this ichnotaxon in hypichnial preservation. The variability concerns the arrangement of outer and inner walls, number and shape of annulations, distribution of pustules, the (false) branching arrangement and the general external shape. Highest variability has been observed mainly in the Rutichnus rutis ichnospecies, clearly less in the R. irregularis ichnospecies that is rare. The Dino-Lite microscope camera analysis of oriented thin sections indicates that endichnial preservation exhibits many structures due to burrowing in soft substrate, destroying laminae of sand. Consequently Rutichnus probably was produced by a worm or arthropod, inducing strong deformation in turbidite sand during the feeding activity on phytodetritus and organic matter transported by the turbidity flow.https://riviste.unimi.it/index.php/RIPS/article/view/5968IchnologyRutichnusTaphonomyTrace fossilsTurbiditesMioceneApennines |
| spellingShingle | PAOLO MONACO MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY) Rivista Italiana di Paleontologia e Stratigrafia Ichnology Rutichnus Taphonomy Trace fossils Turbidites Miocene Apennines |
| title | MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY) |
| title_full | MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY) |
| title_fullStr | MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY) |
| title_full_unstemmed | MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY) |
| title_short | MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL <em>RUTICHNUS</em> IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY) |
| title_sort | morphologic variations of the trace fossil em rutichnus em in cm thick turbidites from the verghereto formation northern apennines italy |
| topic | Ichnology Rutichnus Taphonomy Trace fossils Turbidites Miocene Apennines |
| url | https://riviste.unimi.it/index.php/RIPS/article/view/5968 |
| work_keys_str_mv | AT paolomonaco morphologicvariationsofthetracefossilemrutichnusemincmthickturbiditesfromthevergheretoformationnorthernapenninesitaly |