About: Gemuendina     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:Animal, within Data Space : dbpedia.org associated with source document(s)
QRcode icon
http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FGemuendina

Gemuendina stuertzi (named for Gemünden from where it was discovered) is a placoderm of the order Rhenanida, of the seas of Early Devonian Germany. In life, Gemuendina resembled a scaly ray with an upturned head, or a large-finned stargazer. G. stuertzi is often invoked as an example of convergent evolution- with its flat body and huge, wing-like pectoral fins it has a strong, albeit superficial similarity to rays. Unlike rays, however, both Gemuendina`s eyes and nostrils were placed atop the head, facing upward. Furthermore, G. stuertzi's upturned mouth would have enabled it to suction prey that swam overhead, rather than swallow sediment or suction prey out of the substrate like modern rays.

AttributesValues
rdf:type
rdfs:label
  • Gemuendina (de)
  • Gemuendina (en)
  • Gemuendina (fr)
  • Gemuendina stuertzi (it)
  • Gemuendina (nl)
  • Gemuendina stuertzi (ru)
rdfs:comment
  • Gemuendina war ein Plattenhäuter der in den Meeren des Unterdevons lebte. Exemplare wurden bisher nur in Deutschland gefunden. (de)
  • Gemuendina stuertzi Gemuendina Vue d'artiste schématique de deux individus. Genre † Gemuendina (d), 1903 Synonymes * Broiliina Espèce † Gemuendina stuertzi (d), 1903 Gemuendina est un genre éteint de Placodermes de l'ordre également éteint des Rhenanida et de la famille des Asterosteidae. Une seule espèce est connue, Gemuendina stuertzi, qui a vécu au début du Dévonien il y a entre 409,1 et 402,5 millions d'années. (fr)
  • La gemuendina (Gemuendina stuertzi) è un pesce estinto appartenente ai placodermi. Visse nel Devoniano inferiore (circa 390 milioni di anni fa) in Germania. I suoi resti sono stati ritrovati nel giacimento di Hunsruck. (it)
  • Gemuendina is een monotypisch geslacht van uitgestorven vissen uit de klasse der Placodermi. De enige soort die in het geslacht wordt geplaatst, Gemuendina stuertzi, leefde in het Vroeg-Devoon. (nl)
  • Gemuendina stuertzi (named for Gemünden from where it was discovered) is a placoderm of the order Rhenanida, of the seas of Early Devonian Germany. In life, Gemuendina resembled a scaly ray with an upturned head, or a large-finned stargazer. G. stuertzi is often invoked as an example of convergent evolution- with its flat body and huge, wing-like pectoral fins it has a strong, albeit superficial similarity to rays. Unlike rays, however, both Gemuendina`s eyes and nostrils were placed atop the head, facing upward. Furthermore, G. stuertzi's upturned mouth would have enabled it to suction prey that swam overhead, rather than swallow sediment or suction prey out of the substrate like modern rays. (en)
  • Gemuendina stuertzi (лат. от др.-греч. γέμω +ἔνδῑνα «переполненные внутренности», stuertzi — в честь палеонтолога Bernhard Stürtz) — вид вымерших рыб из отряда класса плакодерм. Останки обнаружены в морях близ Германии в девонских отложениях. (ru)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Gemuendina_stuertzi.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Gemuendina_stuertzi_by_avancna.jpg
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Link from a Wikipage to an external page
sameAs
dbp:wikiPageUsesTemplate
thumbnail
authority
  • Traquair, 1903 (en)
fossil range
genus
  • Gemuendina (en)
parent authority
  • Traquair, 1903 (en)
species
  • stuertzi (en)
synonyms
  • * Broilina heroldi (Stensiö, 1971) (en)
has abstract
  • Gemuendina war ein Plattenhäuter der in den Meeren des Unterdevons lebte. Exemplare wurden bisher nur in Deutschland gefunden. (de)
  • Gemuendina stuertzi (named for Gemünden from where it was discovered) is a placoderm of the order Rhenanida, of the seas of Early Devonian Germany. In life, Gemuendina resembled a scaly ray with an upturned head, or a large-finned stargazer. G. stuertzi is often invoked as an example of convergent evolution- with its flat body and huge, wing-like pectoral fins it has a strong, albeit superficial similarity to rays. Unlike rays, however, both Gemuendina`s eyes and nostrils were placed atop the head, facing upward. Furthermore, G. stuertzi's upturned mouth would have enabled it to suction prey that swam overhead, rather than swallow sediment or suction prey out of the substrate like modern rays. Unlike most other placoderm orders, such as the Antiarchs, or the Arthrodires, Gemuendina and its four other known relatives (or seven, if the three species of the ichthyolith genus are confirmed to be rhenanids) had armor made up of a mosaic of unfused bony plates and scales. Because their armor was so fragile, few intact examples of rhenanids have survived in the fossil record. Because several regions of the Hunsruck lagerstätte were anoxic, thus free of scavenging organisms, intact, nearly pristine (albeit flattened) specimens of G. stuertzi have been found as a result. Also unlike other placoderms, it did not have the characteristic tooth plates of placoderms. Instead, it had star-shaped tubercle scales that allowed it to seize, then swallow fish and other animals that swam too close with its mouth. Specimens of G. stuertzi ranged in size from 30 to 100 centimeters in length. In 1971, Erik Stensiö described a metre long specimen as a new species, "Broilina heroldi," which was later synonymized with Gemuendina. (en)
  • Gemuendina stuertzi Gemuendina Vue d'artiste schématique de deux individus. Genre † Gemuendina (d), 1903 Synonymes * Broiliina Espèce † Gemuendina stuertzi (d), 1903 Gemuendina est un genre éteint de Placodermes de l'ordre également éteint des Rhenanida et de la famille des Asterosteidae. Une seule espèce est connue, Gemuendina stuertzi, qui a vécu au début du Dévonien il y a entre 409,1 et 402,5 millions d'années. (fr)
  • La gemuendina (Gemuendina stuertzi) è un pesce estinto appartenente ai placodermi. Visse nel Devoniano inferiore (circa 390 milioni di anni fa) in Germania. I suoi resti sono stati ritrovati nel giacimento di Hunsruck. (it)
  • Gemuendina is een monotypisch geslacht van uitgestorven vissen uit de klasse der Placodermi. De enige soort die in het geslacht wordt geplaatst, Gemuendina stuertzi, leefde in het Vroeg-Devoon. (nl)
  • Gemuendina stuertzi (лат. от др.-греч. γέμω +ἔνδῑνα «переполненные внутренности», stuertzi — в честь палеонтолога Bernhard Stürtz) — вид вымерших рыб из отряда класса плакодерм. Останки обнаружены в морях близ Германии в девонских отложениях. Этот вид — яркий пример конвергентной эволюции — плоское тело с огромными крыловидными плавниками. В отличие от многих других видов плакодерм, оба глаза располагались на верхней части головы; необычное же строение рта (а тот был словно перевёрнут) позволяло хищникам засасывать добычу, имевшую неосторожность плавать над ней, не глотая при этом донный ил, как это происходило у многих родственников этого вида. Зубные пластины, в отличие от других плакодерм, были зазубрены. Панцирь состоял из мозаики неслитых костных пластинок и был чрезвычайно хрупким, из-за чего до наших дней дошло очень мало останков этой рыбы. Все найденные сначала образцы не превышали 30 см, из-за чего шведский палеонтолог Эрик Стеншё, обнаружив в 1971 году образец длиною в 1 м, описал находку как новый, доселе неизвестный науке вид (Broilina heroldi). Лишь позже, благодаря существенному сходству 30-сантиметрового и метрового образцов, Стеншё согласился с тем, что оба образца — одного и того же вида. (ru)
gold:hypernym
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is Wikipage redirect of
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (62 GB total memory, 60 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software