| Calappoidea Temporal range:
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|---|---|
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| Calappa japonica seen from above | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Subsection: | Heterotremata |
| Superfamily: | Calappoidea H. Milne-Edwards, 1837 |
| Families | |
Calappoidea is a superfamily of crabs comprising the two families Calappidae and Matutidae.[1] The earliest fossils attributable to the Calappoidea date from the Aptian.[2]
References
[edit]- ^ Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009). "A classification of living and fossil genera of decapod crustaceans" (PDF). Raffles Bulletin of Zoology. Suppl. 21: 1–109. Archived from the original (PDF) on 2011-06-06.
- ^ Andreas Brösing (2008). "A reconstruction of an evolutionary scenario for the Brachyura (Decapoda) in the context of the Cretaceous–Tertiary boundary" (PDF). Crustaceana. 81 (3): 271–287. CiteSeerX 10.1.1.652.1701. doi:10.1163/156854008783564091.
External links
[edit]
Media related to Calappoidea at Wikimedia Commons
Data related to Calappoidea at Wikispecies
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction