Entobia Ichnofacies in Fossil Rocky Shores, Lower Pliocene, Northwestern Mediterranean

Gibert, Jordi M. de; Martinell, Jordi; Doménech, Rosa

doi:10.2307/3515475

Cited by 86 publications

(58 citation statements)

References 28 publications

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“…In contrast to most records in literature where Entobia ichnofacies (or Gastrochaenolites-Entobia assemblage) was described from rocky shores and cliV-bound carbonate deposits (e.g. De Gibert et al 1998;Titschack et al 2005), the occurrences from the Lower Gosau Subgroup are from subtidal shelf environments of only moderate hydrodynamic energy.…”

Section: Entobia-style Boringscontrasting

confidence: 49%

Bioerosional structures and pseudoborings from Late Jurassic and Late Cretaceous-Paleocene shallow-water carbonates (Northern Calcareous Alps, Austria and SE France) with special reference to cryptobiotic foraminifera

Schlagintweit¹

2008

Facies

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Section: Entobia-style Boringscontrasting

confidence: 49%

Bioerosional structures and pseudoborings from Late Jurassic and Late Cretaceous-Paleocene shallow-water carbonates (Northern Calcareous Alps, Austria and SE France) with special reference to cryptobiotic foraminifera

Schlagintweit¹

2008

Facies

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“…In addition, Radwańska (1999) regarded the ichnogenus Roderosignus Michalík, 1977 and the ichnospecies Gnatichnus stellarum Breton, Neraudeau and Cuenca-Boulat, 1992 as synonyms of Gnathichnus and G. pentax Bromley, 1975, respectively. Circolites consists of bowl-shaped, hemispherical or deeper pits bored in hard or firm substrates and related to shallow waters (Figs. 1.3,3.1,3.4); its range is from the Jurassic to the Recent (e.g., Kempf, 1962;Peres and Picard, 1964;Gibert et al, 1998;Bromley, 2004 and references therein). These bioerosion structures are mechanically produced in different kinds of substrates consisting of both sedimentary and nonsedimentary rocks (see table 1 of Santos et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Echinoderm ichnology: bioturbation, bioerosion and related processes

Belaústegui¹,

Muñiz²,

Nebelsick³

et al. 2017

J. Paleontol.

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Abstract.-Among invertebrates and both in modern and ancient marine environments, certain echinoderms have been and are some of the most active and widespread bioturbators and bioeroders. Bioturbation and/or bioerosion of regular and irregular echinoids, starfish, brittle stars, sea cucumbers and crinoids are known from modern settings, and some of the resulting traces have their counterparts in the fossil record. By contrast, surficial trails or trackways produced by other modern echinoderms, e.g., sand dollars, exhibit a lower preservation rate and have not yet been identified in the fossil record. In addition, the unique features of the echinoderm skeleton (e.g., composition, rapid growth, multi-element architecture, etc.) may promote the production of related traces produced by the reutilization of echinoderm ossicles (e.g., burrow lining), predation (e.g., borings), or parasitism (e.g., swellings or cysts). Finally, the skeletal robustness of some echinoids may promote their post mortum use as benthic islands for the settlement of hard-substrate dwellers.

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“…10B-E). The ichnoassemblage is dominated by Gastrochaenolites and Entobia, which are prolific ichnogenera of Mesozoic to Recent rocky shores (e.g., Bromley and Asgaard, 1993;Gibert et al, 1998;Johnson et al, 2011). The absence of borings or the truncation of the bioerosion structures may result from recent weathering and/or from marine erosion during the Priabonian.…”

Section: Discussionmentioning

confidence: 99%

Late Eocene transgressive sedimentation in the western Swiss Alps: Records of autochthonous and quasi-autochthonous biofacies on a karstic rocky shore

Bover‐Arnal

Jaramillo‐Vogel

Showani

et al. 2011

Palaeogeography, Palaeoclimatology, Palaeoecology

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Carbonate karst unconformities represent primary sequence-stratigraphic boundaries but, where sealed by marine sedimentary successions, also signify ancient rocky shores. During the Late Eocene (Priabonian), a shallow sea flooded the deeply karstified and brecciated Cretaceous carbonate bedrocks of the western Swiss Alps. Transgression resulted in the formation of a rocky archipelago of basement highs with elevations of up to 20 m and dip angles varying from sub-horizontal to sub-vertical. Although rocky coasts are commonly subjected to vigorous waves, strong currents and storm surges, protected and restricted narrow embayments existed between these islands. The new habitats thus created were colonized by intertidal and shallow subtidal macrobiota, which can be grouped into four biofacies associations: 1) endolithic; 2) epilithic; 3) intertidal; and 4) shallow subtidal. The endolithic biofacies corresponds to an impoverished ichnoassemblage composed of Gastrochaenolites and Entobia borings. The epilithic biofacies is made up of well-preserved rocky-shore biota such as oysters and corals exhibiting an encrusting lifestyle. The intertidal biofacies is composed of wholly preserved shells of potamidid gastropods (Tympanotonos? sp.). The biota present in these biofacies are monospecific or show a very poor species diversity. This fact is in agreement with the pioneer character of the organisms and the sheltered and restricted environments they inhabited. The shallow subtidal biofacies has higher diversity and is characterized by dasycladaceans, oysters, cardiid bivalves, potamidid, ampullinid and Campanile giganteum gastropods, echinoids and solitary corals. The transgressive carbonates evolve upwards into sandy limestones and sandstones displaying sedimentary structures formed in high-energy conditions. This progressive lithofacies change coincides with the opening of the coastal system once the irregular palaeotopography was filled. The transgressive deposits reported here are of significance in that they contain remarkable examples of shallow subtidal and intertidal autochthonous and quasi-autochthonous biofacies associations generated in rocky coast and soft-sediment environments. To our knowledge, this is the first study documenting in detail a rocky shore in the Priabonian.

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Entobia Ichnofacies in Fossil Rocky Shores, Lower Pliocene, Northwestern Mediterranean

Cited by 86 publications

References 28 publications

Bioerosional structures and pseudoborings from Late Jurassic and Late Cretaceous-Paleocene shallow-water carbonates (Northern Calcareous Alps, Austria and SE France) with special reference to cryptobiotic foraminifera

Bioerosional structures and pseudoborings from Late Jurassic and Late Cretaceous-Paleocene shallow-water carbonates (Northern Calcareous Alps, Austria and SE France) with special reference to cryptobiotic foraminifera

Echinoderm ichnology: bioturbation, bioerosion and related processes

Late Eocene transgressive sedimentation in the western Swiss Alps: Records of autochthonous and quasi-autochthonous biofacies on a karstic rocky shore

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