About: Atrypa

An Entity of Type: animal, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

Atrypa is a genus of brachiopod with shells round to short egg-shaped, covered with many fine radial ridges (or costae), that split further out and growth lines perpendicular to the costae and 2-3 times wider spaced. The pedunculate valve is a little convex, but tends to level out or even become slightly concave toward the anterior margin (that is: opposite hinge and pedicle). The brachial valve is highly convex. There is no interarea (that is a flat area bordering the hinge line approximately perpendicular with the rest of the valve) in either valve. Atrypa was a cosmopolitan and occurred from the late Lower Silurian (Telychian) to the early Upper Devonian (Frasnian). Other sources expand the range from the Late Ordovician to Carboniferous, approximately from 449 to 336 Ma. A proposed new

Property Value
dbo:abstract
  • Atrypa is a genus of brachiopod with shells round to short egg-shaped, covered with many fine radial ridges (or costae), that split further out and growth lines perpendicular to the costae and 2-3 times wider spaced. The pedunculate valve is a little convex, but tends to level out or even become slightly concave toward the anterior margin (that is: opposite hinge and pedicle). The brachial valve is highly convex. There is no interarea (that is a flat area bordering the hinge line approximately perpendicular with the rest of the valve) in either valve. Atrypa was a cosmopolitan and occurred from the late Lower Silurian (Telychian) to the early Upper Devonian (Frasnian). Other sources expand the range from the Late Ordovician to Carboniferous, approximately from 449 to 336 Ma. A proposed new species, A. harrisi, was found in the trilobite-rich Floresta Formation in Boyacá, Colombia. (en)
  • Atrypa Dalman, 1828 è un genere estinto di Brachiopodi appartenente alla famiglia dell'ordine , esclusivi del Paleozoico. Si ritrovano nei sedimenti marini di età compresa tra il Siluriano inferiore (Telychiano) e il Devoniano superiore (tra i 438 e i 360 milioni di anni fa). Le numerose specie di Atrypa sono caratterizzate da una conchiglia inequivalve biconvessa o piano-convessa, a profilo arrotondato, con la valva brachiale (dorsale) più convessa di quella peduncolare (ventrale), quest'ultima dotata di umbone incurvato. Questi Brachiopodi sono facilmente riconoscibili dall'ornamentazione esterna costituita da numerose e piccole coste radiali che partono dall'umbone e si biforcano anteriormente e da pronunciate linee di accrescimento concentriche. Risulta che vivessero in acque marine superficiali e, in prevalenza, su fondali molli. È piuttosto singolare che in alcuni affioramenti devoniani si ritrovino resti abbondanti delle sole valve peduncolari, mentre quelle brachiali sono rare o assenti: ciò è dovuto al fenomeno di selezione operato dall'azione delle correnti marine. (it)
  • Atrypa is een uitgestorven geslacht van brachiopoden, dat voorkwam van het Midden-Siluur tot het Vroeg-Carboon. (nl)
  • Atrypa är ett fossilt släkte armfotingar, som förekommer i de paleozoiska avlagringarna, med oftast radialstrierat skal och båda skalhalvorna välvda, ibland kan dock ventralskalet vara nästan plant. Armstöden består av två spiralt inrullade kalkband. Släktet har en av hela världen utbredd förekomst under yngre silur och devon. I Gotlands avlagringar från yngre silur förekommer , beskriven redan av Carl von Linné som ett av de vanligaste fossilen på ön. (sv)
  • 無洞貝屬(學名:Atrypa),又名無窗貝屬,是下已滅絕的一個屬,於奧陶紀(4.44億年前)至石炭紀早石炭世(3.18億年前)開始出現,繁盛於志留紀和泥盆紀,存活至泥盆紀(泥盆紀後期滅絕事件),廣泛存在於海洋岩石內的化石中。其分佈之廣泛,存在於除南極洲之外的所有大陸。牠們生活在淺水軟基質上。 (zh)
dbo:class
dbo:family
dbo:kingdom
dbo:order
dbo:phylum
dbo:synonym
  • Cleiothyris (Phillips, 1841), Mikrothyris
dbo:thumbnail
dbo:wikiPageID
  • 16785933 (xsd:integer)
dbo:wikiPageLength
  • 9145 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1124390338 (xsd:integer)
dbo:wikiPageWikiLink
dbp:classis
dbp:familia
  • †Atrypidae (en)
dbp:fossilRange
dbp:genus
  • Atrypa (en)
dbp:genusAuthority
  • Dalman, 1828 (en)
dbp:imageCaption
  • Atrypa reticularis, 26mm, Eifel, Germany (en)
dbp:name
  • Atrypa (en)
dbp:ordo
  • †Atrypida (en)
dbp:phylum
  • Brachiopoda (en)
dbp:regnum
  • Animalia (en)
dbp:subdivisionRanks
dbp:subordo
  • †Atripidina (en)
dbp:synonyms
  • Cleiothyris (Phillips, 1841), Mikrothyris (en)
dbp:wikiPageUsesTemplate
dcterms:subject
gold:hypernym
rdf:type
rdfs:comment
  • Atrypa is een uitgestorven geslacht van brachiopoden, dat voorkwam van het Midden-Siluur tot het Vroeg-Carboon. (nl)
  • Atrypa är ett fossilt släkte armfotingar, som förekommer i de paleozoiska avlagringarna, med oftast radialstrierat skal och båda skalhalvorna välvda, ibland kan dock ventralskalet vara nästan plant. Armstöden består av två spiralt inrullade kalkband. Släktet har en av hela världen utbredd förekomst under yngre silur och devon. I Gotlands avlagringar från yngre silur förekommer , beskriven redan av Carl von Linné som ett av de vanligaste fossilen på ön. (sv)
  • 無洞貝屬(學名:Atrypa),又名無窗貝屬,是下已滅絕的一個屬,於奧陶紀(4.44億年前)至石炭紀早石炭世(3.18億年前)開始出現,繁盛於志留紀和泥盆紀,存活至泥盆紀(泥盆紀後期滅絕事件),廣泛存在於海洋岩石內的化石中。其分佈之廣泛,存在於除南極洲之外的所有大陸。牠們生活在淺水軟基質上。 (zh)
  • Atrypa is a genus of brachiopod with shells round to short egg-shaped, covered with many fine radial ridges (or costae), that split further out and growth lines perpendicular to the costae and 2-3 times wider spaced. The pedunculate valve is a little convex, but tends to level out or even become slightly concave toward the anterior margin (that is: opposite hinge and pedicle). The brachial valve is highly convex. There is no interarea (that is a flat area bordering the hinge line approximately perpendicular with the rest of the valve) in either valve. Atrypa was a cosmopolitan and occurred from the late Lower Silurian (Telychian) to the early Upper Devonian (Frasnian). Other sources expand the range from the Late Ordovician to Carboniferous, approximately from 449 to 336 Ma. A proposed new (en)
  • Atrypa Dalman, 1828 è un genere estinto di Brachiopodi appartenente alla famiglia dell'ordine , esclusivi del Paleozoico. Si ritrovano nei sedimenti marini di età compresa tra il Siluriano inferiore (Telychiano) e il Devoniano superiore (tra i 438 e i 360 milioni di anni fa). (it)
rdfs:label
  • Atrypa (en)
  • Atrypa (it)
  • Atrypa (nl)
  • Atrypa (sv)
  • 無洞貝屬 (zh)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • Atrypa (en)
is dbo:genus of
is dbo:wikiPageRedirects of
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License