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Amphidiscosida
| Description | Amphidiscosida is an order of hexactinellid sponges characterized by amphidisc spicules, that is, spicules having a stellate disk at each end. They are in the class Hexactinellida and are the only order classified in the monotypic subclass Amphidiscophora. Species of the order Amphidiscosida have existed since the Ordovician period, and still flourish today. From Wikipedia article at https://en.wikipedia.org/wiki/Amphidiscosida, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||
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| Source Data |
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| Rank | order | |||||||||||||||||||||
| Taxonomy (GBIF) | Life : Animalia : Porifera : Hexactinellida : Amphidiscosida | |||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||
| Classification (GBIF) |
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| Scientific Name | Amphidiscosida | |||||||||||||||||||||
| Common Name(s) | 両盤体 | |||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Amphidiscosida |
External Images
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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 Hyalonematidaefamily | accepted (GBIF) listed (PBDB) | 1 | 33.9 Ma Oligocene | 0 Ma Extant | |
| Monoraphididae family | accepted (GBIF) | No associated record in PBDB | |||
| Monorhaphididae family | accepted (GBIF) | No associated record in PBDB | |||
| Pelicaspongiidae ✝ family | accepted (GBIF) listed (PBDB) | 32 | 456 Ma Late/Upper Ordovician | 212 Ma Late/Upper Triassic | |
| Pheronematidae family | accepted (GBIF) listed (PBDB) | 0 Ma Extant | |||
| Stiodermatidae ✝ family | accepted (GBIF) listed (PBDB) | 28 | 516 Ma Cambrian | 265 Ma Permian | |
| Kalimnospongia ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 456 Ma Late/Upper Ordovician | 456 Ma Late/Upper Ordovician | |
References
| Hooper, John N. A., and Rob W. M. van Soest, eds., 2002: null. Systema Porifera: A Guide to the Classification of Sponges. xlviii + 1708. - via Integrated Taxonomic Information System (ITIS) |
| Schrammen, A. 1924a. Die Kieselspongien der oberen Kreide von Nordwestdeutschland. III. und letzter Teil. Monographien zur Geologie und Paläontologie (1) Heft 2: 1-159, I-XVII. - via World Register of Marine Species |
| Reiswig, H.M. (2002). Order Amphidiscosida Schrammen, 1924. p. 1231. In: Hooper, J.N.A. & van Soest, R.W.M. (ed.) Systema Porifera. A guide to the classification of sponges. Vol. 2 (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow). - via World Register of Marine Species |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
Roberts Mesa fossil locality, Gila County, Arizona, USA