Loc. 10 (Laki Formation): Early/Lower Eocene, Pakistan
collected by Iqbal 1966, 1972

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Neritidae
Velates perversus (Gmelin 1791)
Gastropoda - Turritellidae
Turritella (Stiracolpus) cf. harnaiensis (Cox 1931)
Gastropoda - Naticidae
Crommium pseudowillemeti Eames 1952
Euspira cf. punjabensis Eames 1952
Gastropoda - Neogastropoda - Volutidae
Gosavia humberti (d'Archaic and Haime 1854)
Gastropoda - Strombidae
Rimella cf. prestwichi (d'Archaic and Haime 1854)
Bivalvia - Pholadida - Corbulidae
Corbula (Bicorbula) subexarata (d'Archaic and Haime 1854)
Bivalvia - Carditida - Carditidae
Venericardia cf. mutabilis (d'Archaic and Haime 1954)
recombined as Venericardia (Glyptoactis) mutabilis
see common names

Geography
Country:Pakistan
Coordinates: 25.3° North, 67.9° East (view map)
Paleocoordinates:1.2° North, 60.2° East
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Early/Lower Eocene
Age range of interval:56.00000 - 47.80000 m.y. ago
Stratigraphy
Formation:Laki
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Laki Fm, which unconformably overlies the Upper Ranikot Fm (Late Paleocene) and is conformably overlain by the Tiyon Fm (Ypresian). THICKNESS: 695 ft thick in total. AGE: Early Eocene age, on the basis of macrofauna by Cox (1931), Iqbal (1969, 1973). STRATIGRAPHIC POSITION: From unknown position within formation.
Lithology and environment
Primary lithology:planar lamination,concretionary,shelly/skeletal,gray,white,yellow lithified "limestone"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Limestone with subordinate shale. marl, and laterite. The limestone is chalky white to light cream, light grey, hard, compact, thin-bedded at the base, nodular and marly and fossiliferous at the top. LITHIFICATION: Poorly-lithified on the basis of facies description.
Environment:carbonate indet.
Geology comments: ENVIRONMENT: Shallow marine environment; carbonate facies.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Collectors:Iqbal Collection dates:1966, 1972
Collection method comments: COLLECTOR: Iqbal (1966, 1972). REPOSITPRY: Geological Survey of Pakistan, Quetta.
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, though with subgenus and species-level assignments.
Metadata
Database number:77395
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-01-10 15:07:38 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-01-10 15:07:38
Creative Commons license:CC BY
Reference information

Primary reference:
26174. M. W. A. Iqbal. 1973. Biostratigraphy of the Tiyon Formation (Middle Eocene) of Sind, Pakistan. Records of the Geological Survey of Pakistan 22:1-40 [A. Hendy/A. Hendy]