The Schlern Formation, also known as Schlern Dolomite, and Sciliar Formation or Sciliar Dolomite in Italy, is a

limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...

marl Marl is an earthy material rich in carbonate minerals, Clay minerals, clays, and silt. When Lithification, hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae. M ...

and dolomite formation in the

Southern Limestone Alps The Southern Limestone Alps (, ), also called the Southern Calcareous Alps, are the mountain range, ranges of the Eastern Alps south of the Central Eastern Alps mainly located in northern Italy and the adjacent lands of Austria and Slovenia. The ...

in Kärnten,

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

and

South Tyrol South Tyrol ( , ; ; ), officially the Autonomous Province of Bolzano – South Tyrol, is an autonomous administrative division, autonomous provinces of Italy, province in northern Italy. Together with Trentino, South Tyrol forms the autonomo ...

, Italy.Schlern Formation
at

Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...

.orgSchlern 1 Formation
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.orgSciliar Dolomite
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Description

It preserves

fossils A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

dating back to the

Middle Triassic In the geologic timescale, the Middle Triassic is the second of three epoch (geology), epochs of the Triassic period (geology), period or the middle of three series (stratigraphy), series in which the Triassic system (stratigraphy), system is di ...

period ( late Anisian- middle Ladinian), or Illyrian to Longobardian in the regional stratigraphy. The formation correlates with the Wetterstein Formation of the

Northern Limestone Alps The Northern Limestone Alps (), also called the Northern Calcareous Alps, are the ranges of the Eastern Alps north of the Central Eastern Alps located in Austria and the adjacent Bavarian lands of southeastern Germany. The distinction from the ...

. The formation is also coeval with the Livinallongo or Buchenstein Formation. The Schlern Formation is

unconformably An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. In general, the older layer was exposed to erosion for an interval o ...

overlain by the Cassian Dolomite, and overlies the Contrin Formation separated by another unconformity. Deposition of the formation took place between the Pelsonian Humid Interval and the Ladinian Humid Interval, that preceded the better known

Carnian Pluvial Event The Carnian pluvial episode (CPE), often called the Carnian pluvial event, was a period of major change in global climate that coincided with significant changes in Earth's biota both in the sea and on land. It occurred during the latter part of ...

(CPE).Bernardi et al., 2018, p.3 In Italy, the unit is recognized in the Civetta and Latemar reef buildups, and in Austria at the Gartnerkofel.

Fossil content

Among others, the following fossils have been described from the Schlern Formation: ;Bivalves * '' Daonella esinensis''Ogilvie Gordon, 1927 ;Gastropods * '' Cassianopsis decussata''Friesenbichler et al., 2019 * '' Coelostylina conica'' * '' Fedaiella neritacea'' * '' Hologyra alpina''Böhm, 1895 * '' H. elevata'' * '' Hologyra (Vernelia) dissimilis'' * '' Loxonema aequale'' * '' Neritaria plicatilis'' * '' Palaeonarica concentrica'' * '' Promathildia pygmaea'' * '' Pustulifer alpina'' * '' Tyrsoecus (Stephanocosmia)'' * '' Zygopleura spinosa''

References

Bibliography

* * Text and images are available under
Creative Commons Attribution 4.0 International License
* * {{citation , last=Böhm , first=J , year=1895 , title=Die Gastropoden des Marmolatakalkes , journal= Palaeontographica , volume=42 , pages=211–308

Description

Fossil content

See also

References

Bibliography

Further reading