| Leptophoca Temporal range:
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Carnivora |
| Clade: | Pinnipedia |
| Family: | Phocidae |
| Subfamily: | Phocinae |
| Genus: | †Leptophoca True, 1906 |
| Species | |
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Leptophoca is an extinct genus of earless seals from the North Atlantic realm.
Taxonomy[edit]
Leptophoca lenis was coined by Frederick True for a humerus from the Calvert Formation of Maryland.[1] Later, Clayton Ray referred "Prophoca" proxima from the Antwerp region, Belgium, to Leptophoca.[2] A second nominal Leptophoca species, L. amphiatlantica, was coined for specimens found on both sides of the North Atlantic.[3] A 2017 study found proxima and lenis to be the same species, rendering proxima the epithet of the Leptophoca type species, but evidence for the validity of L. amphiatlantica was deemed weak, rendering amphiatlantica a nomen dubium within Leptophoca.[4]
References[edit]
- ^ True FW. 1906. Description of a new genus and species of fossil seal from the Miocene of Maryland. Proceedings of the United States National Museum 30(1475):835-840
- ^ Ray CE. 1976a. Geography of phocid evolution. Systematic Biology 25(4):391-406.
- ^ Irina A. Koretsky; Clayton E. Ray; Noud Peters (2012). "A new species of Leptophoca (Carnivora, Phocidae, Phocinae) from both sides of the North Atlantic Ocean (Miocene seals of the Netherlands, part I)". Deinsea. 15: 1–12.
- ^ Dewaele L, Lambert O, Louwye S. (2017) On Prophoca and Leptophoca (Pinnipedia, Phocidae) from the Miocene of the North Atlantic realm: redescription, phylogenetic affinities and paleobiogeographic implications. PeerJ 5:e3024 https://doi.org/10.7717/peerj.3024
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