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The small shelly fauna, small shelly fossils (SSF), or early skeletal fossils (ESF) are mineralized fossils, many only a few millimetres long, with a nearly continuous record from the latest stages of the Ediacaran to the end of the Early Cambrian Period. They are very diverse, and there is no formal definition of "small shelly fauna" or "small shelly fossils". Almost all are from earlier rocks than more familiar fossils such as trilobites. Since most SSFs were preserved by being covered quickly with phosphate and this method of preservation is mainly limited to the late Ediacaran and early Cambrian periods, the animals that made them may actually have arisen earlier and persisted after this time span.

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rdf:type
rdfs:label
  • Fauna petita amb closca (ca)
  • Small-Shelly-Fauna (de)
  • Pequeños fósiles con concha (es)
  • Piccola fauna dura (it)
  • Petits fossiles coquilliers (fr)
  • 작은껍질화석 (ko)
  • 微小硬骨格化石群 (ja)
  • Fauna tomotiana (pt)
  • Small shelly fauna (en)
rdfs:comment
  • 微小硬骨格化石群(びしょうこうこっかくかせきぐん、small shelly fossils、略称SSF)とは、カンブリア爆発直前からカンブリア紀初期の地層から発見される、大きさが1mmにも満たない微小な化石群のことである。これらは現在、生物の一部を構成していたものだと考えられている(例外はある)。形は様々である。 葉足動物のミクロディクティオン(Microdictyon)は、その背面に小さな骨板が並んでいるが、この骨板が微小硬骨格化石群(SSF)の一つであることが判明した。その本体化石が澄江生物群の一つとして発見されたことからこのことが明らかになった。 (ja)
  • El terme petita fauna dura (o petits fòssils de closca durs) s'aplica a un gran nombre de fòssils mineralitzats, en general de petites dimensions (pocs mil·límetres), distribuïts en el temps de les darreres fases de l'Ediacarià a la fi del Cambrià (548 a 500 milions d'anys enrere). La petita fauna dura (abreujada com SSF, de l'anglès "small shelly fauna" o "small shelly fossils") està molt diversificada i no hi ha una definició formal per indicar aquests tipus de fòssils. (ca)
  • Bei der Small-Shelly-Fauna (SSF) – oft fälschlich auch als „Tommotium Fauna“ bezeichnet – handelt es sich um mineralisierte Fossilien, oftmals nur einige Millimeter groß, die von den letzten Stufen des Ediacarium bis hin zum Ende des frühen Kambriums nahezu lückenlos nachgewiesen werden können. Der Begriff „Small-Shelly-Fauna“ bedeutet „Kleinschalige Fauna“, wobei „klein“ in diesem Fall relativ zu betrachten ist. Die Fossilien sind äußerst verschieden, und es gibt keine offizielle Definition von „Small-Shelly-Fauna“ oder „Small-Shelly-Fossilien“. Sie stammen fast alle aus älteren Gesteinsschichten als bekanntere Fossilien wie z. B. die Trilobiten. Da die meisten SSF dadurch erhalten blieben, dass sie rasch von Phosphat überdeckt wurden und diese Art der Konservierung sich hauptsächlich auf (de)
  • Los pequeños fósiles con concha (en inglés: small shelly fauna o fossils (SSF)), o fauna del Tommotiense, son restos fósiles que aparecen en el registro geológico en el comienzo del período Cámbrico.​ El descubrimiento de estos seres de tamaño milimétrico se realizó en Siberia, y son los primeros restos de esqueletos mineralizados que aparecen en el registro fósil.​ El término fue empleado por primera vez en el año 1975 por y .​ Los restos consisten en escleritas, espículas, tubos y conchas.​ Muchos de estos restos se interpretan como elementos de organismos mayores, y otros parecen ser conchas individuales pertenecientes a organismos de pequeño tamaño; algunos de los fósiles no parecen guardar parentesco con ningún grupo de animales modernos, por lo que, al igual que la biota de Ediacara (es)
  • Au Cambrien inférieur évolue une faible diversité de métazoaires possédant : * une coquille, * un exosquelette (squelette externe) tubulaire ou conique, * des plaques de protection, * une carapace, * des sclérites (parties externes durcies ou composées de chitine d'animaux à corps mous, ou pièces dérivées de la paroi du corps, limitée par des sutures), * des spicules (aiguillon siliceux ou calcaire constitutif du squelette des éponges). Ils sont représentés par les éponges, mollusques, annélides, lobopodes et d'autres formes qui semblent n'appartenir à aucun phylum récent. (fr)
  • The small shelly fauna, small shelly fossils (SSF), or early skeletal fossils (ESF) are mineralized fossils, many only a few millimetres long, with a nearly continuous record from the latest stages of the Ediacaran to the end of the Early Cambrian Period. They are very diverse, and there is no formal definition of "small shelly fauna" or "small shelly fossils". Almost all are from earlier rocks than more familiar fossils such as trilobites. Since most SSFs were preserved by being covered quickly with phosphate and this method of preservation is mainly limited to the late Ediacaran and early Cambrian periods, the animals that made them may actually have arisen earlier and persisted after this time span. (en)
  • Con il termine di “piccola fauna dura” (o “piccoli fossili duri”) si intende un gran numero di fossili mineralizzati, in genere di piccole dimensioni (pochi millimetri), con una distribuzione temporale quasi continua che va dalle ultime fasi dell'Ediacarano alla fine del Cambriano (tra 548 e 500 milioni di anni fa). La piccola fauna dura (abbreviata in SSF, dall'inglese “small shelly fauna” o “small shelly fossils”) è altamente diversificata, e non vi è una definizione formale per indicare questo tipo di fossili. (it)
  • 작은껍질동물군(small shelly fauna), 작은껍질화석(small shelly fossils), 혹은 초기골격화석(early skeletal fossils) 은 광물화된 화석으로 대부분 수 밀리미터 길이 정도의 크기를 가진다. 화석기록은 에디아카라기의 최후기부터 초기 캄브리아기 말기까지 계속해서 발견된다. 형태적으로 매우 다양하며 "작은껍질동물군" 이나 "작은껍질화석"에 대한 공식적인 정의는 존재하지 않는다. 대부분 삼엽충 등과 같이 사람들에게 익숙한 화석들보더 더 오래된 시기의 암석에서 발견된다. 거의 모든 작은껍질화석이 빠르게 으로 덮이면서 보존되었으며 이런 보존방식이 후기 에디아카라기와 초기 캄브리아기에 국한되어 나타나기 때문에 이런 화석을 만들어낸 동물들은 이 시기보다 먼저 등장해 더 이후까지 지속되었을 가능성이 있다. (ko)
  • Em paleontologia, chama-se fauna tomotiana (em inglês small shelly fauna) a um conjunto de fósseis que se formaram no início do período Cambriano, há cerca de 542 milhões de anos. Os exemplares conhecidos desta fauna viveram num período de cerca de dez milhões de anos, sucederam à fauna vendiana, que se desenvolveu no final do Proterozoico, e antecederam a grande Explosão Cambriana. (pt)
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