Receptaculites is the name-bearing genus for an extinct group of conspicuous benthic marine genera, the receptaculitids (formally Receptaculitaceae or Receptaculitidae), that lived from the Early Ordovician through the Permian period, peaking in the Middle Ordovician. The group's phylogenetic origin has long been obscure, with some arguing that they were calcareous algae, probably of the order Dasycladales. Receptaculitids lived in warm, shallow seas, but consensus disagreeing. They have been described from all continents except Antarctica. In some areas they were important reef-formers, and they also occur as isolated specimens.
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| - Receptaculites (nl)
- Receptaculites (en)
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| - Receptaculites is het naamdragende geslacht voor een uitgestorven groep opvallende benthische mariene geslachten, de , die leefde van de Onder-Ordovicium tot het Perm, piekend in het Midden-Ordovicium. De fylogenetische oorsprong van de groep is al lang onduidelijk, maar het huidige begrip is dat de Receptaculitidae kalkhoudende algen waren, waarschijnlijk van de orde . Receptaculitiden leefden in warme, ondiepe zeeën en zijn beschreven vanuit alle continenten behalve Antarctica. In sommige gebieden waren ze belangrijke rifvormers en ze komen ook voor als geïsoleerde exemplaren. (nl)
- Receptaculites is the name-bearing genus for an extinct group of conspicuous benthic marine genera, the receptaculitids (formally Receptaculitaceae or Receptaculitidae), that lived from the Early Ordovician through the Permian period, peaking in the Middle Ordovician. The group's phylogenetic origin has long been obscure, with some arguing that they were calcareous algae, probably of the order Dasycladales. Receptaculitids lived in warm, shallow seas, but consensus disagreeing. They have been described from all continents except Antarctica. In some areas they were important reef-formers, and they also occur as isolated specimens. (en)
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| - Receptaculitid from the Ordovician of Estonia. (en)
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| - *R. arcticus (Etheridge)
*R. biconstrictus (E.O.Ulrich)
*R. maeandriformis (A.N.Ivanov)
*R. monticulatus
*R. neptuni (Defrance)
*R. occidentalis (en)
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| - Receptaculites is the name-bearing genus for an extinct group of conspicuous benthic marine genera, the receptaculitids (formally Receptaculitaceae or Receptaculitidae), that lived from the Early Ordovician through the Permian period, peaking in the Middle Ordovician. The group's phylogenetic origin has long been obscure, with some arguing that they were calcareous algae, probably of the order Dasycladales. Receptaculitids lived in warm, shallow seas, but consensus disagreeing. They have been described from all continents except Antarctica. In some areas they were important reef-formers, and they also occur as isolated specimens. Receptaculites and its relatives have a double-spiral, radiating pattern of rhombus-shaped plates supported by spindle-like objects called meroms. Fossils can usually be identified by the intersecting patterns of clockwise and counterclockwise rows of plates or stalk spaces, superficially similar to the arrangement of disk florets on a sunflower—hence the common name "sunflower coral" (sic). Receptaculitids have sometimes been compared to the morphologically similar, but probably distantly related, cyclocrinitids. (en)
- Receptaculites is het naamdragende geslacht voor een uitgestorven groep opvallende benthische mariene geslachten, de , die leefde van de Onder-Ordovicium tot het Perm, piekend in het Midden-Ordovicium. De fylogenetische oorsprong van de groep is al lang onduidelijk, maar het huidige begrip is dat de Receptaculitidae kalkhoudende algen waren, waarschijnlijk van de orde . Receptaculitiden leefden in warme, ondiepe zeeën en zijn beschreven vanuit alle continenten behalve Antarctica. In sommige gebieden waren ze belangrijke rifvormers en ze komen ook voor als geïsoleerde exemplaren. (nl)
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