Foraminifera from the Ross Sea (Antarctica)

Foraminifera from the Ross Sea (Antarctica)

Gli invertebrati marini

Il lavoro da cui è tratta questa collezione, riguarda la distribuzione attuale dei foraminiferi bentonici presenti nei sedimenti superficiali (0-1 cm) di 4 campioni di sedimento prelevati nel settore occidentale del Mare di Ross, durante la campagna oceanografica ANTA05, nell’ambito del Programma Nazionale di Ricerche in Antartide (PNRA). Il confronto tra i dati quantitativi e l’assetto idrografico delle aree investigate, caratterizzate da diverse condizioni oceanografiche, ha evidenziato la stretta relazione tra la tipologia e la variabilità areale della microfauna a foraminiferi bentonici e le masse d’acqua. La presenza e la distribuzione delle associazioni a foraminiferi in questa area del Mare di Ross è strettamente connessa alle condizioni oceanografiche locali. Il confronto tra la presenza delle specie più abbondanti ed i principali parametri abiotici in ambiente antartico (tenore di carbonio organico, contenuto in silice biogenica e presenza di carbonato di calcio) ha permesso di ampliare le conoscenze sull’ecologia della microfauna a foraminiferi bentonici in quest’area, utili per ricostruzioni paleoambientali ed oceanografiche.


The work represented by this collection describes the Modern deep-water benthic foraminiferal assemblages studied from box cores collected in four areas of the Ross Sea, during the oceanographic cruise ANTA05 within the framework of the Italian Antarctic Research National Programme (PNRA). The study highlights that foraminiferal species composition and areal distribution is strongly related to local variation in water mass characteristics. The comparison between the occurrence of most abundant species and the main abiotic parameters in Antarctic environments allowed to enhance the knowledge about the benthic foram ecology in this area, suitable for palaeoenvironmental and oceanographic reconstructions.


Adercotryma glomerata (Brady, 1878)

Adercotryma glomerata (Brady, 1878)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Astrononion echolsi Kennett, 1967

Astrononion echolsi Kennett, 1967

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Bolivina sp. d'Orbigny, 1839

Bolivina sp.

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Bulimina sp. d'Orbigny, 1826

Bulimina sp. d'Orbigny, 1826

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Deuterammina grisea (Earland, 1934)

Deuterammina grisea (Earland, 1934)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Epistominella exigua (Brady, 1884)

Epistominella exigua (Brady, 1884)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Fursenkoina fusiformis (Williamson, 1858)

Fursenkoina fusiformis (Williamson, 1858)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Globigerina bulloides d'Orbigny, 1826

Globigerina bulloides d'Orbigny, 1826

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Glomospira charoides (Jones & Parker, 1860)

Glomospira charoides (Jones & Parker, 1860)

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Hormosinella distans (Brady, 1881)

Hormosinella distans (Brady, 1881)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Hormosinella ovicula (Brady, 1879)

Hormosinella ovicula (Brady, 1879)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Labrospira wiesneri Parr, 1950

Labrospira wiesneri Parr, 1950

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Lagenammina difflugiformis (Brady, 1879)

Lagenammina difflugiformis (Brady, 1879)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Miliammina arenacea (Chapman, 1916)

Miliammina arenacea (Chapman, 1916)

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Neogloboquadrina pachyderma (Ehrenberg, 1861)

Neogloboquadrina pachyderma (Ehrenberg, 1861)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Nonionella bradii (Chapman, 1916)

Nonionella bradii (Chapman, 1916)

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Portatrochammina antarctica (Parr, 1950)

Portatrochammina antarctica (Parr, 1950)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Psammosphaera sp. Schulze, 1875

Psammosphaera sp. Schulze, 1875

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Pseudobolivina antarctica Wiesner, 1931

Pseudobolivina antarctica Wiesner, 1931

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Pseudotrochammina bullata (Höglund, 1947)

Pseudotrochammina bullata (Höglund, 1947)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Recurvoides contortus Earland, 1934

Recurvoides contortus Earland, 1934

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Reophax guttifer Brady, 1881

Reophax guttifer Brady, 1881

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Reophax scorpiurus de Montfort, 1808

Reophax scorpiurus de Montfort, 1808

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Reophax spiculifer Brady, 1879

Reophax spiculifer Brady, 1879

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Reophax subfusiformis Earland, 1933

Reophax subfusiformis Earland, 1933

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Rhabdamminella cilindrica (Brady, 1882)

Rhabdamminella cilindrica (Brady, 1882)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019

Trochammina cf. quadricamerata (Echols, 1971)

Trochammina cf. quadricamerata (Echols, 1971)

Well preserved

ISMAR-CNR Bologna, micropaleontology collection, Antarctic section

2019