Tuzoia burgessensis
| Tuzoia burgessensis | ||||||||
|---|---|---|---|---|---|---|---|---|
| Temporal occurrence | ||||||||
| middle Cambrian | ||||||||
| 505 million years | ||||||||
| Locations | ||||||||
| Systematics | ||||||||
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| Scientific name | ||||||||
| Tuzoia burgessensis | ||||||||
| Resser , 1929 | ||||||||
Tuzoia burgessensis is an extinct species from the genus Tuzoia with an uncertain position within the arthropod (Arthropoda).
features
Tuzoia burgessensis had an egg-shaped outline (length to height ratio about 1.39) and a carapace length of 20 to 113 mm. The upper edge was straight to slightly convex and had up to 3 small, almost triangular-shaped spines, which were mostly in the front half. The anterior rostrum was broad, relatively short, pointing slightly upwards and often bent back. The eye notch was well developed. The rear rostrum was small and almost triangular in shape. There was a slender spine in the middle and on the belly side on the rear edge, the middle one being usually longer. The side elevation between the upper and lower edge ran almost parallel to the upper edge and had 10 broad, flat spines. The net-like structure of the surface stretched over the entire tank and was very close-meshed.
Locations
The species has been found several times in the Burgess slate in the Canadian Rocky Mountains .
Systematics
The species was first described by Charles Elmer Resser in 1929 . Chlupáč & Kordule 2002 see Tuzoia burgessensis as a younger synonym of the type species Tuzoia retifera .
swell
literature
- I. Chlupáč, V. Kordule: Arthropods of Burgess Shale type from the Middle Cambrian of Bohemia (Czech Republic) . Bulletin of the Czech Geological Survey, Vol. 77 (3), 2002: 167-182. PDF
- J. Vannier, J.-B. Caron, Yuan J.-L., DEG Briggs, D. Collins, Zhao Y.-L., Zhu M.-Y .: Tuzoia: Morphology and Lifestyle of a Large Bivalved Arthropod of the Cambrian Seas . Journal of Paleontology 81 (3), 2007: 445-471. HTML
Individual evidence
- ^ CE Resser: New Lower and Middle Cambrian Crustacea . Proceedings of the US National Museum 76, 1929: 1-18.