Prototherium Temporal range:
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Mounted P. veronense skeleton | |
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Genus: | Prototherium de Zigno, 1887
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Prototherium is a genus of extinct sirenian related to the dugong. It is known from middle (Bartonian) and upper Eocene deposits in Italy and Spain. Type species is P. veronenses (Zigno, 1887[1])
Three species are now included in the genus, but their phylogenetic relations are not resolved and possibly one of them Prototherium intermedium Bizzotto 1983[2] must be excluded. In the same way, relations between Prototherium and other genus are confused and need revision. A third species was described in Spain in 2016, P.ausetanum[3].
Related species
[edit]See also
[edit]References
[edit]- ^ (de) Zigno, Achille. "Quelques observations sur les siréniens fossiles". Bull.Soc. Geol. France. 15: 728–732.
- ^ Bizzotto, Bruno. "Prototherium intermedium n. sp. (Sirenia) dell'EoceneSuperiore di Possagno e proposta di revisione sistematica del taxon Eotheroides Palmer, 1899". Mem. Ist. Geol. Mineral. Univ. Padova. 36: 95–116.
- ^ Balaguer, J. & Alba, D. (2016). "A new dugong species (Sirenia, Dugongidae) from the Eocene of Catalonia (NE Iberian Peninsula)". Comptes Rendus Palevol. 15 (5): 489–500. Bibcode:2016CRPal..15..489B. doi:10.1016/j.crpv.2015.10.002.
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