Liassoscorpionides
Liassoscorpionides | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Class: | Arachnida |
Order: | Scorpiones |
Family: | †Liassoscorpionididae |
Genus: | †Liassoscorpionides Bode 1951 |
Species | |
| |
Synonyms | |
|
Liassoscorpionides is an extinct genus of scorpions from the Toarcian of Germany. It was found on the Posidonia Shale, on the so-called Mergelgrube “insect bed” of Hondelage near Braunschweig, on a layer, as it´s name suggests, full of insect genera.[1] Liassoscorpionides is the only confirmed jurassic scorpion discovered.[2] Liassoscorpionides represented a relatively small genus with a morphology resembing the extant genus Hadogenes.[3]
The holotype, GZG G525-1, consists of a partial body fossil, measuring 14.4 mm in length and 4.8 mm in width.
Liassoscorpionides was originally referred to a new, monotypic family, Liassoscorpionididae.[5] Being the only Jurassic scorpion known, there is no evidence that L. schmidti was aquatic (which was suggested in the past) and in the absence of further, better preserved material it should be excluded from future considerations of broad patterns of scorpion evolution. Some works considered it even a nomen dubium.[5] However a more recent work has retailed it´s validity, yet leaving unclear it´s affinities, maybe a relative of the Triassic Mesophonidae.[3] With the spider Seppo koponeni is one of the two only known arachnids from the Lower Jurassic of Germany.[6]
References
- ^ Bode, A. (1953). "Die Insektenfauna des Ostniedersachsischen Oberen Lias". Palaeontographica Abteilung. 103 (2): 1–375. Retrieved 11 October 2023.
- ^ . Retrieved 11 October 2023.
- ^ PMID 18089103. Retrieved 11 October 2023.
- ISBN 0877104018.
- ^ a b Stockwell, S.A. (1989). "Revision of the phylogeny and higher classification of the scorpions (Chelicerata)". Ph.D. Thesis, University of California, Berkeley: 171–216. Retrieved 11 October 2023.
- PMID 25544628. Retrieved 30 July 2021.