Where: Spain (41.2° N, 1.5° W: paleocoordinates 55.5° S, 111.1° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Murero Formation, St Davids (509.0 - 497.0 Ma)
• The Murero Formation extends along the Middle Cambrian Caesaraugustian Stage
Environment/lithology: offshore; gray, green shale and fine-grained sandstone
•1995) suggests that the mud-dominated deposition took
•place during a transgressive pulse that produced deep-sublittoral
•or maybe circalittoral environmental conditions.
•These depositional conditions would have produced an
•unprotected environment, a fact also inferred from the
•presence of oligomeric trilobites (e.g. Agnostidae), considered
•as pelagic organisms typical of open waters.
•some interbedded fine sandstone levels. A few carbonate
•nodule-bearing levels also occur.
Size class: macrofossils
Primary reference: D. Garcia-Bellido Capdevila. 2003. The demosponge Leptomitus cf. L. lineatus, first occurrence from the Middle Cambrian of Spain (Murero Formation, Western Iberian Chain). Geologica Acta 1(1):113-119 [A. McGowan/A. McGowan/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 55501: authorized by Alistair McGowan, entered by Alistair McGowan on 28.10.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
| Demospongiae | |
|
Leptomitus cf. lineatus Walcott 1920 demosponge | |