Mt. Perda Liana, Unit IV (MGP) (Jurassic of Italy)

Where: Italy (39.9° N, 9.4° E: paleocoordinates 32.5° N, 14.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Perda Liana Member (Dorgali Formation), Early/Lower Bathonian (167.7 - 164.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, muddy grainstone and lithified, bioturbated, nodular, shelly/skeletal, gray, muddy wackestone

• Unit IV records a high energy,storm-related back-barrier setting, alternating with a low-energy lagoonal setting.
• Unit IV, 8.5 m thick, is a succession of three, normally graded layers, individually comprising a lower grainstone interval with hummocky cross bedding and ripples in the upper part, and an upper bioturbated, flaserbedded

•wackestone/packstone interval similar to the lithology of the underlying unit. The macrobenthos is represented by molluscs and rare brachiopods.

Size classes: macrofossils, mesofossils

Collected by Dieni

• Repository: Museo di Geologia e Paleontologia, Universita di Padova, Dieni Collection (MGP)

Primary reference: I. Dieni, F. Massari, and V. Radulovic. 2013. The Mt Perda Liana section (Middle Jurassic, central-eastern Sardinia): revised stratigraphy and brachiopod faunas. Bollettino della Società Paleontologica Italiana 52(2):123-138 [M. Clapham/M. Manojlovic/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 160188: authorized by Matthew Clapham, entered by Marko Manojlovic on 16.08.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Terebratulida - Postepithyrididae
Holcothyris angulata
Holcothyris angulata Buckman 1917
Bivalvia
 Pectinida - Pectinoidae
Camptonectes laminatus
Camptonectes laminatus Sowerby 1818 scallop
 Ostreida - Pteriidae
Pteroperna costatula
Pteroperna costatula Eudes-Deslongchamps 1824 pearl oyster
Foraminifera
  -
Bosniella croatica, Amijiella amiji