| dbo:abstract |
Palynodinium is an extinct genus of organic-walled dinoflagellate cyst (or dinocyst). It is a fossil species of dinoflagellate cyst used to demarcate the K/Pg boundary, which marks the terminal Cretaceous and the extinction of the dinosaurs. Palynodinium grallator was among the microfossils which lead to the recent discovery of the K/Pg event record in marine sediments of the northeast Pacific. Dinoflagellate cysts are estimated to be produced by 10–16% of living dinoflagellates as a dormant, zygotic stage of their life cycle, which can accumulate in marine sediments as microfossils. Organic-walled dinoflagellate cysts are noted for their resistance to degradation owing to their composition of dinosporin, a biopolymer similar to sporopolinin characteristic of many terrestrial palynomorphs. Their abundance, cosmopolitan distribution, and quality of preservation in the fossil record since the Middle Triassic make dinoflagellate cysts excellent indicators of primary productivity as well as tools for biostratigraphy and paleoenvironmental reconstructions. The scope of dinoflagellate cyst applications has resulted in ongoing collaborative efforts between industry and academia to refine their taxonomic classification and enhance their utility through database organization. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Palynodinium_grallator.png?width=300 |
| dbo:wikiPageID |
70735874 (xsd:integer) |
| dbo:wikiPageLength |
5621 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
1089381762 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbc:Cretaceous_geology dbc:Dinoflagellates dbc:Endosymbiotic_events dbc:Extinction_events dbc:Palynology dbr:K-Pg_boundary dbc:Events_that_forced_the_climate dbr:Cretaceous dbc:Paleogene_geology dbr:Triassic dbr:Dinosporin dbr:Primary_production dbc:Cretaceous–Paleogene_boundary dbr:Biostratigraphy dbr:Dinoflagellate dbc:Dinoflagellate_biology dbr:Palynomorphs dbr:Zygote dbr:Dinoflagellate_cyst |
| dbp:authority |
H.Gocht, 1970 (en) |
| dbp:imageCaption |
Bright-field photomicrograph of Palynodinium grallator produced by Sandy McLachlan, University of Victoria from the Oyster Bay Formation of eastern Vancouver Island. (en) |
| dbp:taxon |
Palynodinium (en) |
| dbp:wikiPageUsesTemplate |
dbt:Automatic_taxobox dbt:Reflist dbt:Short_description dbt:Taxonbar dbt:Use_dmy_dates |
| dct:subject |
dbc:Cretaceous_geology dbc:Dinoflagellates dbc:Endosymbiotic_events dbc:Extinction_events dbc:Palynology dbc:Events_that_forced_the_climate dbc:Paleogene_geology dbc:Cretaceous–Paleogene_boundary dbc:Dinoflagellate_biology |
| rdfs:comment |
Palynodinium is an extinct genus of organic-walled dinoflagellate cyst (or dinocyst). It is a fossil species of dinoflagellate cyst used to demarcate the K/Pg boundary, which marks the terminal Cretaceous and the extinction of the dinosaurs. Palynodinium grallator was among the microfossils which lead to the recent discovery of the K/Pg event record in marine sediments of the northeast Pacific. (en) |
| rdfs:label |
Palynodinium (en) |
| owl:sameAs |
wikidata:Palynodinium https://global.dbpedia.org/id/GRe1k |
| prov:wasDerivedFrom |
wikipedia-en:Palynodinium?oldid=1089381762&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/Palynodinium_grallator.png |
| foaf:isPrimaryTopicOf |
wikipedia-en:Palynodinium |
| is dbo:wikiPageWikiLink of |
dbr:Dinocyst dbr:Areoligeraceae |
| is foaf:primaryTopic of |
wikipedia-en:Palynodinium |
