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- Pholad_borings abstract "Pholad borings are tubular burrows in firm clay and soft rock that have been created by bivalve molluscs (boring clams) in the family Pholadidae. The common names of clams in this family are "pholads", "piddocks", and "angel wings"; the latter because their shells are white, elongated and tend to be shaped like a wing and have sculpture somewhat reminiscent of a wing.Pholads are unusual bivalves capable of boring into various kinds of rock, firm clay and peat, and they live permanently in the burrows they create. These clams use a set of ridges or "teeth" on the outer anterior surfaces of their shells to grind into suitable substrate, creating a non-branching burrow. Pholad burrows are typically narrower at the entrance of the burrow than they are across the interior.Ancient, sand-filled pholad borings are a distinctive type of trace fossil known as Gastrochaenolites that are found in some limestones, dolomites and lithified mudstones. They are assigned to the Trypanites ichnofacies, and evidence submarine hardgrounds that formed soon after deposition, typically during episodes of non-sedimentation, with subsequent infilling of the burrow and burial when sedimentation resumed.Pholad burrow trace fossils are not to be confused with the Trypanites ichnospecies, which are toothpick-sized masses of holes that characterize some hardgrounds. Trypanites probably result from a combination of mechanical abrasion and acid dissolution by the organism, whereas pholad borings are thought to be purely mechanical in origin.".
- Pholad_borings thumbnail Pholad_borings.jpg?width=300.
- Pholad_borings wikiPageID "41728952".
- Pholad_borings wikiPageLength "3994".
- Pholad_borings wikiPageOutDegree "23".
- Pholad_borings wikiPageRevisionID "598428660".
- Pholad_borings wikiPageWikiLink Bivalve.
- Pholad_borings wikiPageWikiLink Bivalvia.
- Pholad_borings wikiPageWikiLink Carbonate_hardgrounds.
- Pholad_borings wikiPageWikiLink Category:Boring_fossils.
- Pholad_borings wikiPageWikiLink Category:Paleozoology.
- Pholad_borings wikiPageWikiLink Common_name.
- Pholad_borings wikiPageWikiLink Dolomite.
- Pholad_borings wikiPageWikiLink Gastrochaenolites.
- Pholad_borings wikiPageWikiLink Ichnofacies.
- Pholad_borings wikiPageWikiLink Ichnology.
- Pholad_borings wikiPageWikiLink Ichnospecies.
- Pholad_borings wikiPageWikiLink Ichnotaxon.
- Pholad_borings wikiPageWikiLink Limestone.
- Pholad_borings wikiPageWikiLink Mollusca.
- Pholad_borings wikiPageWikiLink Molluscs.
- Pholad_borings wikiPageWikiLink Mudstone.
- Pholad_borings wikiPageWikiLink Pholadidae.
- Pholad_borings wikiPageWikiLink Sedimentation.
- Pholad_borings wikiPageWikiLink Trace_fossil.
- Pholad_borings wikiPageWikiLink Trypanites.
- Pholad_borings wikiPageWikiLink File:Angelwing_burrow1.jpg.
- Pholad_borings wikiPageWikiLink File:Pholad_borings.jpg.
- Pholad_borings wikiPageWikiLink File:Pholades_niches.jpg.
- Pholad_borings wikiPageWikiLinkText "Pholad borings".
- Pholad_borings hasPhotoCollection Pholad_borings.
- Pholad_borings wikiPageUsesTemplate Template:Commonscat.
- Pholad_borings wikiPageUsesTemplate Template:Reflist.
- Pholad_borings wikiPageUsesTemplate Template:Trace-fossil-stub.
- Pholad_borings subject Category:Boring_fossils.
- Pholad_borings subject Category:Paleozoology.
- Pholad_borings hypernym Burrows.
- Pholad_borings type IceHockeyPlayer.
- Pholad_borings comment "Pholad borings are tubular burrows in firm clay and soft rock that have been created by bivalve molluscs (boring clams) in the family Pholadidae.".
- Pholad_borings label "Pholad borings".
- Pholad_borings sameAs m.0_fmw9j.
- Pholad_borings sameAs Q17143706.
- Pholad_borings sameAs Q17143706.
- Pholad_borings wasDerivedFrom Pholad_borings?oldid=598428660.
- Pholad_borings depiction Pholad_borings.jpg.
- Pholad_borings isPrimaryTopicOf Pholad_borings.