Los Cayos S tracksite (Cretaceous to of Spain)

Also known as LCS

Where: La Rioja, Spain (42.1° N, 2.1° W: paleocoordinates 32.2° N, 9.2° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Enciso Group, Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)

• 12 track-bearing levels; lowest of the Los Cayos sites

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine delta plain; bioturbated, fine, ferruginous, quartzose wackestone and bioturbated, ferruginous, shelly/skeletal, sandy siltstone

• level S1: fine-grained sandstone; theropod trackway; "a quartzose, fine-grained graywacke with iron crusts and bioturbation."

•level S2–S3: fine, fairly massive sandstone with convex molds of bivalves; some doubtful tracks

•level S4: fine sandstone; theropod trackway; "fine-grained graywacke, massive, with iron crusts and abundant mottling."

•levels S5–S8: possible tracks

•level S9: sauropod track; "a graywacke, locally very quartzose, very fine-fine grained...incomplete shrinkage cracks, ferruginous crusts, bioturbation, and fragments of unidentified fossils"

•level S10: intensely dinoturbated fine-grained sandstone; "a fine sandy siltstone (locally graywacke) with iron crusts, bivalves, and bioturbation"

Size class: macrofossils

Preservation: mold/impression, trace

Collected in 2003

Collection methods: surface (in situ),

Primary reference: J. J. Moratalla, J. L. Sanz, and S. Jiménez. 1988. Nueva evidencia icnologica de dinosaurios en el Cretácico Inferior de La Rioja (España) [New ichnological evidence of dinosaurs in the Lower Cretaceous of La Rioja (Spain)]. Estudios Geológicos 44:119-131 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 85183: authorized by Matthew Carrano, entered by Matthew Carrano on 05.12.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
  -
Bivalvia indet.2 Linnaeus 1758 clam
Reptilia
 Dinosauria -
? Dinosauria indet.1 Owen 1842 dinosaur
 Theropoda -
Theropoda indet.3 Marsh 1881 theropod
 Ornithischia -
Ornithopoda indet.4 Marsh 1881 ornithopod
 Saurischia -
Titanosaurimanus sp.2 Dalla Vecchia and Tarlao 2000 sauropod