Schlern Formation
{{Short description|Geological formation in Austria and Italy}}
{{Infobox rockunit
| name = Schlern Formation
| image =
| caption =
| type = Geologic formation
| age = late Anisian-mid Ladinian
~{{fossil range|242|239}}
| period = Ladinian
| prilithology = Dolomite
| otherlithology = Limestone, marl
| namedfor =
| namedby =
| region = Kärnten
South Tyrol
| country = Austria, Italy
| coordinates = {{coord|46.6|N|13.3|E|display=inline,title}}
| paleocoordinates = {{coord|6.8|N|23.5|E|display=inline}}
| unitof =
| subunits =
| underlies = Cassian Dolomite
| overlies = Contrin Formation
| thickness =
| extent = Southern Limestone Alps
| area =
| map = {{Location map+ | Austria
| relief = 1
| width = 250
| float = center
| places =
{{Location map~ | Austria
| lat_deg = 46.6
| lon_deg = 13.3
| mark = Pink ff0080 pog.svg
| marksize = 10
}}
{{Location map~ | Austria
| lat_deg = 46.5
| lon_deg = 13.3
| mark = Pink ff0080 pog.svg
| marksize = 10
}}
}}
| map_caption =
}}
The Schlern Formation, also known as Schlern Dolomite, and Sciliar Formation or Sciliar Dolomite in Italy, is a limestone, marl and dolomite formation in the Southern Limestone Alps in Kärnten, Austria and South Tyrol, Italy.[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Schlern&group_formation_member=Schlern Schlern Formation] at Fossilworks.org[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Schlern%201&group_formation_member=Schlern%201 Schlern 1 Formation] at Fossilworks.org[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Sciliar%20Dolomite&group_formation_member=Sciliar%20Dolomite Sciliar Dolomite] at Fossilworks.org
Description
It preserves fossils dating back to the Middle Triassic 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 formation is also coeval with the Livinallongo or Buchenstein Formation. The Schlern Formation is unconformably 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 (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
;Gastropods
{{div col|colwidth=29em}}
- Cassianopsis decussataFriesenbichler et al., 2019
- Coelostylina conica
- Fedaiella neritacea
- Hologyra alpinaBöhm, 1895
- H. elevata
- Hologyra (Vernelia) dissimilis
- Loxonema aequale
- Neritaria plicatilis
- Palaeonarica concentrica
- Promathildia pygmaea
- Pustulifer alpina
- Tyrsoecus (Stephanocosmia)
- Zygopleura spinosa
{{div col end}}
See also
{{div col|colwidth=29em}}
- List of fossiliferous stratigraphic units in Austria
- List of fossiliferous stratigraphic units in Italy
- Bletterbach
{{div col end}}
References
{{reflist|2}}
= Bibliography =
- {{citation |last1=Friesenbichler |first1=E. |first2=M. |last2=Hautmann |first3=A. |last3=Nützel |first4=M. |last4=Urlichs |first5=H. |last5=Bucher |year=2019 |title=Palaeoecology of Late Ladinian (Middle Triassic) benthic faunas from the Schlern/Sciliar and Seiser Alm/Alpe di Siusi area (South Tyrol, Italy) |url=https://www.zora.uzh.ch/id/eprint/152680/9/PAZE-D-17-00052_R2.pdf |journal=Paläontologische Zeitschrift |volume=93 |issue=1 |pages=1–29|doi=10.1007/s12542-018-0423-7 |bibcode=2019PalZ...93....1F }}
- {{citation |last1=Bernardi |first1=M. |last2=Gianolla |first2=P. |last3=Petti |first3=F.M. |last4=Mietto |first4=P. |last5=Benton |first5=M. J. |year=2018 |title=Dinosaur diversification linked with the Carnian Pluvial Episode |journal=Nature Communications |volume=9 |issue=1 |pages=1–10 |doi=10.1038/s41467-018-03996-1|pmid=29662063 |pmc=5902586 |bibcode=2018NatCo...9.1499B }} 50px Text and images are available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License]
- {{citation |last=Ogilvie Gordon |first=M. M. |year=1927 |title=Das Grödener-, Fassa- und Enneberggebiet in den Südtiroler Dolomiten: Geologische Beschreibung mit besonderer Berücksichtigung der Überschiebungserscheinungen. Teil III. Paläontologie |journal=Abhandlungen der Geologischen Bundesanstalt |volume=24 |pages=1–88}}
- {{citation |last=Böhm |first=J |year=1895 |title=Die Gastropoden des Marmolatakalkes |journal=Palaeontographica |volume=42 |pages=211–308}}
Further reading
- A. Emmerich, V. Zamparelli, T. Bechstädt and R. Zühlke. 2005. The reefal margin and slope of a Middle Triassic carbonate platform: the Latemar (Dolomites, Italy). Facies 50(3–4):573-614
- J. Pfeiffer. 1988. Paleontology and microfacies of a platform margin in the Carnic Alps (Austria, Middle Triassic). Facies 19:33-60
- E. Fois and M. Gaetani. 1981. The northern margin of the Civetta buildup. Evolution during the Ladinian and the Carnian. Rivista Italiana di Paleontologia e stratigrafia 86(3):469-542
- E. Fois. 1981. The Sass da Putia carbonate buildup (western Dolomites): biofacies succession and marginal development during the Ladinian. Rivista Italiana di Paleontologia e Stratigrafia 87(4):565-598
Category:Triassic System of Europe
Category:Shallow marine deposits
Category:Paleontology in Austria
Category:Paleontology in Italy
Category:Southern Limestone Alps