<em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED?
The Italian Northern Apennines are acknowledged as the place where ichnology was born, but there is comparatively little work about their ichnological record. This study bridges this gap by describing two new ichnosites from the locality of Pierfrancesco, which preserve an abundant, low-disparity tr...
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| Format: | Article |
| Language: | English |
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Milano University Press
2022-01-01
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| Series: | Rivista Italiana di Paleontologia e Stratigrafia |
| Subjects: | |
| Online Access: | https://riviste.unimi.it/index.php/RIPS/article/view/16972 |
| _version_ | 1827853517839138816 |
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| author | ANDREA BAUCON GIROLAMO LO RUSSO CARLOS NETO DE CARVALHO FABRIZIO FELLETTI |
| author_facet | ANDREA BAUCON GIROLAMO LO RUSSO CARLOS NETO DE CARVALHO FABRIZIO FELLETTI |
| author_sort | ANDREA BAUCON |
| collection | DOAJ |
| description | The Italian Northern Apennines are acknowledged as the place where ichnology was born, but there is comparatively little work about their ichnological record. This study bridges this gap by describing two new ichnosites from the locality of Pierfrancesco, which preserve an abundant, low-disparity trace-fossil assemblage within the Late Cretaceous beds of the M. Cassio Flysch. Results show that lithofacies and ichnotaxa are rhythmically organized. The base of each cycle consists of Megagrapton-bearing calciclastic turbidites, which are overlain by marlstone beds with an abundant, low-disparity assemblage of trace fossils. This includes Chondrites intricatus, C. patulus, C. targionii, C. recurvus and Cladichnus fischeri. The cycle top consists of mudstones with no distinct burrows. The rhythmic pattern of Pierfrancesco reflects a deep-sea ecological succession, in which species and behaviour changed as turbidite-related disturbances altered the seafloor. This study opens the question of whether the Chondrites-Cladichnus ichnocoenosis represents low-oxygen or nutrient-poor settings. |
| first_indexed | 2024-03-12T11:07:52Z |
| format | Article |
| id | doaj.art-cbdedb852b7c47e6a2dc6cb6d28303ed |
| institution | Directory Open Access Journal |
| issn | 0035-6883 2039-4942 |
| language | English |
| last_indexed | 2024-03-12T11:07:52Z |
| publishDate | 2022-01-01 |
| publisher | Milano University Press |
| record_format | Article |
| series | Rivista Italiana di Paleontologia e Stratigrafia |
| spelling | doaj.art-cbdedb852b7c47e6a2dc6cb6d28303ed2023-09-02T03:40:42ZengMilano University PressRivista Italiana di Paleontologia e Stratigrafia0035-68832039-49422022-01-01128110.54103/2039-4942/16972<em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED?ANDREA BAUCON0GIROLAMO LO RUSSO1CARLOS NETO DE CARVALHO2FABRIZIO FELLETTI3DISTAV, Università di Genova, Corso Europa 52, Genova, 16132, ItalyMuseo di Storia Naturale di Piacenza, Via Scalabrini, 107, 29121 Piacenza, ItalyGeology Office of Idanha-a-Nova, Naturtejo UNESCO Global Geopark, Avenida Zona Nova de Expansão, 6060-101, Idanha-a-Nova, Portugal; Instituto D. Luiz, University of Lisbon, Campo Grande Edifício C1, Piso 1, 1749‑016 Lisbon, PortugalUniversità degli Studi di Milano, Dipartimento di Scienze della Terra ‘A.Desio’, Via Mangiagalli 34, 20133-Milano, ItalyThe Italian Northern Apennines are acknowledged as the place where ichnology was born, but there is comparatively little work about their ichnological record. This study bridges this gap by describing two new ichnosites from the locality of Pierfrancesco, which preserve an abundant, low-disparity trace-fossil assemblage within the Late Cretaceous beds of the M. Cassio Flysch. Results show that lithofacies and ichnotaxa are rhythmically organized. The base of each cycle consists of Megagrapton-bearing calciclastic turbidites, which are overlain by marlstone beds with an abundant, low-disparity assemblage of trace fossils. This includes Chondrites intricatus, C. patulus, C. targionii, C. recurvus and Cladichnus fischeri. The cycle top consists of mudstones with no distinct burrows. The rhythmic pattern of Pierfrancesco reflects a deep-sea ecological succession, in which species and behaviour changed as turbidite-related disturbances altered the seafloor. This study opens the question of whether the Chondrites-Cladichnus ichnocoenosis represents low-oxygen or nutrient-poor settings.https://riviste.unimi.it/index.php/RIPS/article/view/16972Ichnology; Cladichnus; Chondrites; homogenites; trench; nutrients |
| spellingShingle | ANDREA BAUCON GIROLAMO LO RUSSO CARLOS NETO DE CARVALHO FABRIZIO FELLETTI <em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED? Rivista Italiana di Paleontologia e Stratigrafia Ichnology; Cladichnus; Chondrites; homogenites; trench; nutrients |
| title | <em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED? |
| title_full | <em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED? |
| title_fullStr | <em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED? |
| title_full_unstemmed | <em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED? |
| title_short | <em>CHONDRITES-CLADICHNUS</em> ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED? |
| title_sort | em chondrites cladichnus em ichnocoenosis from the deep sea deposits of pierfrancesco cretaceous italy oxygen or nutrient limited |
| topic | Ichnology; Cladichnus; Chondrites; homogenites; trench; nutrients |
| url | https://riviste.unimi.it/index.php/RIPS/article/view/16972 |
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