| Oxynoticeras Temporal range:
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| Oxynoticeras oxynotum from Lower Lias rocks at Bishops Cleeve in Gloucestershire, England, UK | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Oxynoticeratidae |
| Genus: | †Oxynoticeras Hyatt, 1875 |
| Type species | |
| Ammonites oxynotus Quenstedt, 1843
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| Species | |
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| Synonyms | |
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Oxynoticeras is an extinct genus of ammonite from the Early Jurassic[1] of Europe and North America.[2] This genus is characterized by its smooth shell, with almost invisible undulations on the flank, and a sharp keel.[3]
Synonym Oxynotoceras was created by Buckman as misspelling.[4]
Distribution[edit]
Fossils belonging to this genus were found in Europe, Morocco, Asia, Canada, USA and South America.[4]
References[edit]
- ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
- ^ * The Elements of Palaeontology by Rhona M. Black
- ^ Ludvigsen, Rolf & Beard, Graham. 1997. West Coast Fossils: A Guide to the Ancient Life of Vancouver Island. pg. 83
- ^ a b M. K. Howarth 2013. Treatise on Invertebrate Paleontology, Part L, Revised, Volume 3B, Chapter 4: Psiloceratoidea, Eoderoceratoidea, Hildoceratoidea.
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