Oarda de Jos A (Od, calcareous lens) (Cretaceous of Romania)

Where: Romania (46.8° N, 24.0° E: paleocoordinates 33.7° N, 22.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Sebeş Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• middle section of the Sebeş Formation

• bed-level stratigraphic resolution

Environment/lithology: pond; shelly/skeletal, calcareous mudstone

• A very short transport distance from a river bank or sandbar into a small, shallow pond trapped by rising water. A seasonal, tropical monsoonal climate with long dry periods followed by short, wet bursts has been inferred. Periodic floods, sometimes extreme, have also been demonstrated based on sedimentological evidence.
• Lens of calcareous mudstone (a lens of calcareous mudstone (with minimum dimensions of 80 cm length, 50 cm width and 20 cm depth) composed of thousands of morphologically homogenous eggshell fragments associated with a number of near-complete eggs (n=7), complete and identifiable bird bones (n=12) and numerous indeterminate bone fragments (n∼50)

Size classes: macrofossils, mesofossils

Primary reference: M. Vremir. 2010. New faunal elements from the Late Cretaceous (Maastrichtian) continental deposits of Sebeş area (Transylvania). Terra Sebus. Acta Musei Sabesiensis 2010(2):635-684 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 132350: authorized by Philip Mannion, entered by Philip Mannion on 14.08.2012, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Aves
 Enantiornithes -
Enantiornithes indet. bird
EME V.314 (Transylvanian Museum Society museum, Cluj-Napoca, Romania) - thousands of morphologically homogenous eggshell fragments associated with a number of near-complete eggs (n=7), complete and identifiable bird bones (n=12) and numerous indeterminate bone fragments (n∼50)
Reptilia
 Testudines - Dortokidae
Dortokidae indet. turtle
new genus and species