La Luz, Laluzia level (Cretaceous of Mexico)

Where: San Luis Potosi, Mexico (21.8° N, 99.7° W: paleocoordinates 27.9° N, 80.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cardenas Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• first Laluzia interval (2.7-5.4 m) and second Laluzia interval (5.4-10.3 m) in the lower Cardenas Formation

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified limestone

• Laluzia rudist lithosomes (rudists occur as single specimens with only a few bouquets) in low-energy, low-light, soft-bottom environments

Size class: macrofossils

Primary reference: S. Götz and S. Mitchell. 2009. The Laluzia armini (gen et spec nov) ecosystem: understanding a deeper-water rudist lithosome from the Early Maastrichtian of Mexico. Facies 55:539-551 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91496: authorized by Wolfgang Kiessling, entered by Uta Merkel on 30.09.2009, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Polychaeta
 Sabellida - Sabellariidae
Sabellariidae indet.
Sabellariidae indet. Johnston 1865
 Sabellida - Serpulidae
Pyrgopolon (Septenaria) macropus
Bivalvia
 Hippuritida - Hippuritidae
Laluzia armini n. gen. n. sp.
Laluzia armini n. gen. n. sp. Götz and Mitchell 2009 rudist
Foraminifera
 Rotaliina - Lepitorbitoididae
Lepidorbitoides sp.