Stylonurina
| Stylonurina | ||||||||||
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| Temporal occurrence | ||||||||||
| Upper Ordovician to Upper Permian | ||||||||||
| 458.4 to 254.2 million years | ||||||||||
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| Systematics | ||||||||||
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| Scientific name | ||||||||||
| Stylonurina | ||||||||||
| Servant , 1924 |
Stylonurina is one of the two suborders from the order of the sea scorpions (Eurypterida). They are considered the basal (original) Eurypterids. Both the oldest ( Brachyopterus stubblefieldi from the early Upper Ordovician ( Sandbium ) of Wales ) and the youngest ( Hibbertopterus permianus from the Upper Permian ( Wuchiapingium ) of Russia ) known representatives of the Eurypterida come from it.
features
Stylonurina had transverse sutures on the ventral plates and did not have a modified podomere 7a on prosomal limb VI.
Locations
Representatives of the suborder Stylonurina were found on all continents with the exception of Antarctica .
Systematics
The subordination was established in 1924 by Karl Diener . According to Lamsdell, Braddy & Tetlie 2010, it includes the following superfamilies and a genus incertae sedis :
swell
literature
- James C. Lamsdell, Simon J. Braddy, O. Erik Tetlie: The systematics and phylogeny of the Stylonurina (Arthropoda: Chelicerata: Eurypterida) . In: Journal of Systematic Palaeontology . Volume 8, No. 1 , 2010, p. 49-61 , doi : 10.1080 / 14772011003603564 .
Individual evidence
- ↑ a b O. Erik Tetlie: Distribution and dispersal history of Eurypterida (Chelicerata) . In: Palaeogeography, Palaeoclimatology, Palaeoecology . Volume 252, 2007, pp. 557-574 , doi : 10.1016 / j.palaeo.2007.05.011 .
- ^ Karl Diener : Eurypterida . In: Fossilium Catalogus I: Animalia . tape 25 . W. Junk, Berlin 1924.