Atrypa

http://dbpedia.org/resource/Atrypa an entity of type: Thing

Atrypa is een uitgestorven geslacht van brachiopoden, dat voorkwam van het Midden-Siluur tot het Vroeg-Carboon. rdf:langString

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. rdf:langString

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。 rdf:langString

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 rdf:langString

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). rdf:langString

rdfs:label

rdf:langString Atrypa

rdf:langString 無洞貝屬

foaf:name

rdf:langString Atrypa

dbpprop:name

rdf:langString Atrypa

dbpedia-owl:wikiPageID

xsd:integer 16785933

dbpedia-owl:wikiPageRevisionID

xsd:integer 1124390338

dbpprop:subordo

rdf:langString †Atripidina

dbpprop:familia

rdf:langString †Atrypidae

dbpprop:fossilRange

rdf:langString ~

dbpprop:genus

rdf:langString Atrypa

dbpprop:genusAuthority

rdf:langString Dalman, 1828

dbpprop:imageCaption

rdf:langString Atrypa reticularis, 26mm, Eifel, Germany

dbpprop:ordo

rdf:langString †Atrypida

dbpprop:phylum

rdf:langString Brachiopoda

dbpprop:regnum

rdf:langString Animalia

dbpprop:synonyms

rdf:langString Cleiothyris (Phillips, 1841), Mikrothyris

dbpedia-owl:abstract

rdf:langString 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.

rdf:langString 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.

rdf:langString Atrypa is een uitgestorven geslacht van brachiopoden, dat voorkwam van het Midden-Siluur tot het Vroeg-Carboon.

rdf:langString 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.

rdf:langString 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。

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