Biology:Hallirhoidae
From HandWiki
Short description: Extinct family of sponges
| Hallirhoidae Temporal range: Cretaceous - Eocene
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| Various Cretaceous Hallirhoiids | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Demospongiae |
| Subclass: | Heteroscleromorpha |
| Family: | †Hallirhoidae |
| Genera | |
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Hallirhoidae is an extinct family of heteroscleromorph demosponges found throughout the world from the Cretaceous to the Eocene, whereupon they became extinct.[1] The highest concentration of species occurred in the Tethys Ocean during the upper Cretaceous. The hallirhoid demosponges were very distinctive-looking, largely pear-shaped sponges that were attached to the seafloor by a long stem-like stalk.[2][3]
References
- ↑ Carlton, Robert L. (2018-03-07) (in en). A Concise Dictionary of Paleontology. Springer. ISBN 9783319730554. https://books.google.com/books?id=cQtQDwAAQBAJ&q=Hallirhoidae&pg=PA266.
- ↑ "Callopegma en Phymatella, twee tetracladine krijtsponzen van Westerhaar en Sibculo". http://natuurtijdschriften.nl/search?identifier=404798.
- ↑ "Sponge" (in en-US). http://www.thefossilforum.com/index.php?/collections-database/sponges/sponge-r829/.
Wikidata ☰ Q5643013 entry
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