Systematic study of some freshwater
Pelecypod of Sindh.
(2) Department of Geology, University of lbadan, lbadan E-mail: waleakinmosin2001@yahoo.com Table 1: Summary table of components of ibese limestone Plate Depth Fossil Intraclast Ooid (M) 1 23.0 Sponge Spicules v X 2 24.5 Sponge Spicules v v 3 34.0 Echinoid X X Sponge Spicules Bivalves 4 37.5
Pelecypod X X 5 38.5
Pelecypod v v 6 40.0 Sponge Spicules X X 7 47.5 v X 8 48.5 Globorotalia v X Cerroazulensis Plate Depth Pellet Support Sparry (M) Calcite 1 23.0 v MUD/GRAIN v 2 24.5 v MUD v 3 34.0 X MUD X 4 37.5 X GRAIN v 5 38.5 v MUD/GRAIN v 6 40.0 v MUD X 7 47.5 v GRAIN v 8 48.5 v MUD v
The shelly debris in these specimens came from sessile epi- and in-faunal organisms (mainly
pelecypods and brachiopods but also encrusting algae or bacteria) that lived in the region and that are highly negative with respect to [sup.13]C.
The fauna of the lagoonal muds of Agoulenitsa Lagoon are mainly brackish, characterized by the edible
pelecypod Cerastoderma edule.
Functional morphology and palaeontological significance of the conchiolin layers in corbulid
pelecypods. Lethaia 12:341-351.
(5) Twenty-five meters of gray, thick-bedded limestone including many
pelecypod fossils.
Invasion and extinction: The last three million years of North Sea
Pelecypod history.
One month after water diversion, total macroinvertebrate, chironomid, ceratopogonid and
pelecypod densities were still significantly reduced relative to the reference site (pre- post2 diversion contrasts), and remained so 2 mo after diversion (pre- post3 diversion contrasts).
Observations on the sperm of the
pelecypod Anodontoides ferussacianus (Lea).
The recognizable skeletal allochem include; echinoderms, brachiopods, gastropods,
pelecypod, dasycladacean algae and bioclasts.
Orientation of empty
pelecypod shells and shell fragments in quiet water.
The Biostratigraphic study of
pelecypod and gastropod fauna of Eocene in Thano Bula Khan have prominent position in biostratigraphy of Sindh.