This HTML5 document contains 67 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
yago-reshttp://yago-knowledge.org/resource/
dbohttp://dbpedia.org/ontology/
foafhttp://xmlns.com/foaf/0.1/
n7https://global.dbpedia.org/id/
yagohttp://dbpedia.org/class/yago/
dbthttp://dbpedia.org/resource/Template:
rdfshttp://www.w3.org/2000/01/rdf-schema#
freebasehttp://rdf.freebase.com/ns/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
owlhttp://www.w3.org/2002/07/owl#
wikipedia-enhttp://en.wikipedia.org/wiki/
dbchttp://dbpedia.org/resource/Category:
dbphttp://dbpedia.org/property/
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
goldhttp://purl.org/linguistics/gold/
wikidatahttp://www.wikidata.org/entity/
dbpedia-nlhttp://nl.dbpedia.org/resource/
dbrhttp://dbpedia.org/resource/

Statements

Subject Item
dbr:Sigournea
rdf:type
yago:Chordate101466257 yago:Object100002684 yago:Vertebrate101471682 yago:Tetrapod102156732 yago:Organism100004475 yago:Whole100003553 yago:WikicatPrehistoricTetrapods dbo:Animal yago:LivingThing100004258 yago:Animal100015388 yago:PhysicalEntity100001930
rdfs:label
Sigournea Sigournea
rdfs:comment
Sigournea is a genus of stem tetrapod from the Early Carboniferous. The genus contains only one species, the type species Sigournea multidentata, which was named in 2006 by paleontologists John R. Bolt and R. Eric Lombard on the basis of a single lower jaw from Iowa. The jaw came from a fissure-fill deposit of the St. Louis Limestone that was exposed in a quarry near the town of Sigourney and dates to the Viséan stage, making it approximately 335 million years old. Bolt and Lombard named the genus after Sigourney. The species name multidentata alludes to the many teeth preserved in the jaw. The jaw, which is housed in the Field Museum and cataloged as FM PR 1820, curves strongly downward but was probably straight to begin with, having been deformed by the process of fossilization after the
dcterms:subject
dbc:Prehistoric_tetrapod_genera dbc:Paleozoic_animals_of_North_America dbc:Carboniferous_tetrapods
dbo:wikiPageID
42985872
dbo:wikiPageRevisionID
1020473430
dbo:wikiPageWikiLink
dbr:Sigourney,_Iowa dbc:Prehistoric_tetrapod_genera dbr:Tournaisian dbr:Dentary_bone dbr:Phylogenetic_analysis dbr:Field_Museum dbr:Occidens_portlocki dbr:Genus dbr:Stem_tetrapod dbr:Spathicephalus dbr:Coronoid_bones dbr:2006_in_paleontology dbr:Type_species dbr:Prearticular_bone dbr:Lateral_line dbc:Paleozoic_animals_of_North_America dbr:Baphetoid dbr:Meckelian_groove dbr:Early_Carboniferous dbc:Carboniferous_tetrapods dbr:Marcello_Ruta dbr:Tetrapoda dbr:Viséan dbr:St._Louis_Limestone
owl:sameAs
n7:nE7y wikidata:Q18358603 freebase:m.010r8qmd yago-res:Sigournea dbpedia-nl:Sigournea
dbp:wikiPageUsesTemplate
dbt:Portal dbt:Extinct dbt:Reflist dbt:Automatic_taxobox dbt:Short_description dbt:Tetrapodomorpha dbt:Taxonbar dbt:Fossil_range
dbp:authority
Bolt and Lombard, 2006
dbp:displayParents
2
dbp:fossilRange
Early Carboniferous,
dbp:taxon
Sigournea
dbp:typeSpecies
Sigournea multidentata
dbp:typeSpeciesAuthority
Bolt and Lombard, 2006
dbo:abstract
Sigournea is a genus of stem tetrapod from the Early Carboniferous. The genus contains only one species, the type species Sigournea multidentata, which was named in 2006 by paleontologists John R. Bolt and R. Eric Lombard on the basis of a single lower jaw from Iowa. The jaw came from a fissure-fill deposit of the St. Louis Limestone that was exposed in a quarry near the town of Sigourney and dates to the Viséan stage, making it approximately 335 million years old. Bolt and Lombard named the genus after Sigourney. The species name multidentata alludes to the many teeth preserved in the jaw. The jaw, which is housed in the Field Museum and cataloged as FM PR 1820, curves strongly downward but was probably straight to begin with, having been deformed by the process of fossilization after the individual died. Rooted in the dentary bone along the outermost edge of the jaw are 88 small, pointed marginal teeth. An additional row of even smaller teeth runs along the coronoids, three bones positioned lengthwise along the lower boundary of the dentary on the inner surface of the lower jaw. Bolt and Lombard were able to classify Sigournea as an early member of Tetrapoda based on the presence of bone surfaces covered in pits and ridges, a single row of dentary teeth, a jaw joint that faces upward, and an open groove for a lateral line along the outer surface of the jaw, and on the absence of teeth on the or enlarged fangs on the coronoids. Sigournea differs from other stem tetrapods in having several holes within a depression called the exomeckelian fenestra on the inner surface of the jaw. The closest relatives of Sigournea within Tetrapoda are unknown. Bolt and Lombard did not include it in a phylogenetic analysis in their 2006 description because they thought the single known jawbone did not possess enough unique anatomical characteristics to elucidate its evolutionary relationships. However, in 2008, Bolt and his colleague Marcello Ruta published a phylogenetic analysis that did include Sigournea, and found good support for S. multidentata grouping with Occidens portlocki, a species of stem tetrapod named in 2004 from the earliest Carboniferous (Tournaisian) of Northern Ireland. Milner et al. (2009) suggested that Sigournea may be a close relative of the slightly younger baphetoid tetrapod Spathicephalus from Scotland and Nova Scotia based on the presence of small, closely packed marginal teeth in both taxa. However, their proposition was tentative because they did not include Sigournea in their phylogenetic analysis.
gold:hypernym
dbr:Tetrapod
prov:wasDerivedFrom
wikipedia-en:Sigournea?oldid=1020473430&ns=0
dbo:wikiPageLength
4500
foaf:isPrimaryTopicOf
wikipedia-en:Sigournea