Paleomerus hamiltoni
| Paleomerus hamiltoni | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Restoration of P. hamiltoni . |
||||||||||||
| Temporal occurrence | ||||||||||||
| lower Cambrian | ||||||||||||
| 521 to 509 million years | ||||||||||||
| Locations | ||||||||||||
|
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Paleomerus hamiltoni | ||||||||||||
| Størmer , 1956 | ||||||||||||
Paleomerus hamiltoni is an extinct species of arthropods from the aglaspidida-like order Strabopida .
features
The head plate of Paleomerus hamiltoni is short and about 2.5 to 3 times as wide as it is long. The large eyes are dorsal , in the front area of the head plate, and far apart. The trunk consists of 11 abdominal segments that narrow towards the back and a wide conical telson . Limbs have not been preserved.
Locations
In total, only 4 specimens of this species were found in the Mickwitzia sandstone near Mount Kinnekulle in Sweden .
Systematics
The species was assigned to the monogeneric family Paleomeridae Størmer, 1956 after its first description . However, after another species ( Paleomerus markowskii ) was discovered, both species were classified into the Strabopidae family along with Strabops thacheri . Some authors were of the opinion that P. hamiltoni actually belongs to the genus Strabops . According to a more recent finding (Tetlie & Moore 2004), however, P. hamiltoni differs significantly from S. thacheri in terms of the position of the eyes and the length of the telson . The Paleomeridae family is considered redundant to Strabopidae.
swell
literature
- O. Erik Tetlie, Rachel A. Moore: A new specimen of Paleomerus hamiltoni (Arthropoda; Arachnomorpha) . Transactions of the Royal Society of Edinburgh: Earth Sciences 94, 2004: 195-198. PDF
Individual evidence
- ^ S. Jensen: Predation by early Cambrian trilobites on infaunal worms - evidence from the Swedish Mickwitzia Sandstone . Lethaia 23, 1990: 29-42.