Valle Syncline, northern Seville Province, Spain: Wenlock, Spain

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Eurypterida - Pterygotidae
Pterygotidae indet. Clarke and Ruedemann 1912
pterygotid eurypterids
Bivalvia
Bivalvia indet. Linnaeus 1758
some undetermined bivalves
Obolellata - Obolellida
Obolellida indet. Rowell 1965
obolellid brachs
Pterobranchia - Graptoloidea - Monograptidae
Pristiograptus dubius
unclassified
Monaxonida indet.
monaxid sponge
see common names

Geography
Country:Spain State/province:Seville
Coordinates: 38.0° North, 6.0° West (view map)
Paleocoordinates:70.4° South, 39.1° East
Time
Period: Silurian Epoch: Wenlock
10 m.y. bin: Silurian 2
Key time interval: Wenlock Zone:  Cyrtograptus lundgreni - Monograptus testis
Age range of interval: 433.4 - 427.4 m.y. ago
Stratigraphy
Local bed:"Lower Graptolitic Shales"
Stratigraphy comments: Unit name listed is "informal" after Jaeger and Robardet (1979). "Dermal sponges were collected from 11.45 m below the Ludlow limestones, in the middle part of a weathered bed..."
Lithology and environment
Primary lithology: claystone
Environment:marine indet.
Geology comments: "...weathered bed of yellowish clay rock, which probably had some original volcanic ash admixture."
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:676
Authorizer:J. Alroy Enterer:M. Sommers
Research group:marine invertebrate
Created:1999-02-23 11:58:48 Last modified:1999-02-23 13:58:48
Access level:the public Released:2000-11-20 13:53:09
Creative Commons license:CC BY
Reference information

Primary reference:
16. J. K. Rigby, J. C. Gutierrez-Marco, M. Robardet and J. M. Picarra. 1997. First articulated Silurian sponges from the Iberian Peninsula (Spain and Portugal). Journal of Paleontology 71(4):554-563 [J. Alroy/M. Sommers/J. Alroy]