The Trace Fossil <i>Polykampton cabellae</i> isp. nov. from the Pagliaro Formation (Paleocene), Northern Apennines, Italy: A Record of Nutritional Sediment Sequestration by a Deep Sea Invertebrate

Uchman, Alfred; Rattazzi, Bruno

doi:10.1080/10420940.2017.1308362

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…The trace and body fossils occurring in the Kerteminde Marl indicate a very similar condition on the belonging to the recently introduced ethological category sequestrichnia (Uchman & Wetzel 2016Uchman & Rattazzi 2017;Jurkowska et al 2018;Rodríguez-Tovar et al 2019;Uchman et al 2019Uchman et al , 2020. This category comprises storage behaviour that is predominantly applied by tracemakers in deep-sea settings, where food availability fluctuates seasonally or episodically.…”

Section: Description Of the Specimenmentioning

confidence: 73%

An Eocene conger eel (Teleostei, Anguilliformes) from the Lillebælt Clay Formation, Denmark

Carnevale¹,

Schwarzhans²,

Schrøder³

et al. 2022

bgsd

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A conger eel (Anguilliformes, Congridae) is described from the lower Lutetian concretionary nodules of the Lillebælt Clay Formation exposed at Trelde Næs, eastern Jutland, based on two partially complete articulated cranial skeletons. One of the cranial specimens exhibits an otolith void from which a cast was taken, used by Schwarzhans (2007) to describe the extinct Pseudoxenomystax treldeensis, which is placed herein within the new genus Smithconger gen. nov. Smithconger treldeensis (Schwarzhans, 2007) is characterized by well-developed lateral processes on the frontals, supraoccipital crest absent, sphenotic spine rather large, anteriorly pointed and exposed on the flattened surface of the skull roof, otic bullae considerably reduced, maxilla almost straight and distally pointed, maxillary and dentary teeth numerous and arranged in multiple rows, dentary with slightly convex ventral profile, opercle with smooth posterior margin and subopercle short. The otoliths of Smithconger treldeensis show high dorsal rim, broad and deep dorsal depression, no ventral furrow, sulcus straight, shallow, centrally positioned with anteriorly reduced colliculum, and ostial channel at anterior tip of colliculum short, not reaching the predorsal rim. The otolith-based species Bathycongrus waihaoensis Schwarzhans, 2019 from the Kaiatan (Bartonian/Priabonian) of New Zealand is also assigned to the genus Smithconger. Smithconger is tentatively referred to the congrid subfamily Congrinae due to the lack of hypohyals in the hyoid bar. This new Eocene genus of conger eel shows a certain degree of similarity with the extant Bassanago. The diversity and relationships of other Eocene congrids is also briefly discussed.

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Section: Description Of the Specimenmentioning

confidence: 73%

An Eocene conger eel (Teleostei, Anguilliformes) from the Lillebælt Clay Formation, Denmark

Carnevale¹,

Schwarzhans²,

Schrøder³

et al. 2022

bgsd

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“…Combining these findings implies that Polykampton alpinum, P. guberanum and P. multiflabellatum represent sequestration structures. Polykampton cabellae has already been interpreted as a sequestrichnion (Uchman and Rattazzi, 2018).…”

Section: Functional Morphology and Feeding Strategymentioning

confidence: 99%

Alternating stripmining and sequestration in deep-sea sediments: The trace fossil Polykampton–an ecologic and ichnotaxonomic evaluation

Uchman

Wetzel

Rattazzi³

2019

Palaeontol Electron

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Polykampton Ooster, 1869, comprises deep-sea trace fossils composed of a horizontal median cylindrical tunnel and lateral spreite lobes that alternate on either side of the tunnel and are slightly inclined to bedding. The lobes in P. alpinum Ooster, 1869, are closely spaced and partly shingled. In P. guberanum isp. nov. they are asymmetric and widely spaced. In both ichnospecies, the lobes are generally below the median tunnel. In P. multiflabellatum isp. nov., the lobes extend from outer bents of the median tunnel that runs below the lobes. Polykampton is a structure produced by a "worm"-like organism occupying a deep endobenthic tier. The tracemaker evidently sequestered organic-rich sediment from the seafloor, stored it in the lobes and processed it later by stripmining for feeding, especially in times of low food availability on the seafloor. Polykampton occurs in upper Albian to Oligocene deep-sea, mainly turbiditic deposits.

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Abundant trace fossil Polykampton in Palaeogene deep-sea flysch deposits of the Lesser Caucasus in Georgia: Palaeoecological and palaeoenvironmental implications

Uchman

Lebanidze

Beridze

et al. 2020

Palaeogeography, Palaeoclimatology, Palaeoecology

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The Trace Fossil Polykampton cabellae isp. nov. from the Pagliaro Formation (Paleocene), Northern Apennines, Italy: A Record of Nutritional Sediment Sequestration by a Deep Sea Invertebrate

Cited by 5 publications

References 16 publications

An Eocene conger eel (Teleostei, Anguilliformes) from the Lillebælt Clay Formation, Denmark

An Eocene conger eel (Teleostei, Anguilliformes) from the Lillebælt Clay Formation, Denmark

Alternating stripmining and sequestration in deep-sea sediments: The trace fossil Polykampton–an ecologic and ichnotaxonomic evaluation

Abundant trace fossil Polykampton in Palaeogene deep-sea flysch deposits of the Lesser Caucasus in Georgia: Palaeoecological and palaeoenvironmental implications

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