Carboniferous Arthropod Trackway from Australia

Tasmanadia glaessneri (trackway fossil)

Geological Time: Late Carboniferous (~290 Million Years Old)

Size: mm (25.4mm=1 inch): Trackway: 123 mm long, 5 mm across, 55 mm long 5 mm across, plus others. Matrix: 145 mm by 95 mm

Fossil Site: Jericho Formation, Joe Joe Group, Alpha, Queensland, Australia

Fossil Code: AAF488

Price: $195.00 - sold


Tasmanadia glaessneriDescription: This trackway looks like some ascribed to trilobites, but is actually thought to have been made by an arthropod of the family Anaspididae. The extantAlphaichnus members of this family are endemic to Tasmania, and have been termed “living fossils”. They are a small (10 mm) freshwater arthropod comprised of 5 species in 3 genera. This one is similar to one found in Tasmania, and has been placed in the same ichnogenus. The detail is quite good, with the specimen affording a most unique opportunity to own a moment in time frozen for nearly 300 million years. Note there are other tracks also present, making for an extensive example of this rarely-seen inchnogenus. There is one repaired crack at the edge, but it does little to detract from this most unusual “Carboniferous Superhighway”

Fossils Purchase

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