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Showing results for tags 'peronopsis interstricta'.
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From the album: My collection in progress
Itagnostus interstrictus White 1874 Location: Wheeler Formation, Utah, USA Age: 507 Mya (Wuliuan, Middle Cambrian) Measurements: 5x5x4,5 cm (matrix), 6x3 mm(trilobite) Kingdom: Animalia Phylum: Arthropoda Subphylum: Trilobitomorpha Class: Trilobita Order: Agnostida Suborder: Agnostina Family: Peronopsidae -
I recently received a 40 lb box of U‐dig shale and I was mostly done splitting it when I found this (this is the largest Peronopsis interstricta that I found in the shale I received). Ps. The ruler is in inches.
- 7 replies
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- is it large?
- peronopsis interstricta
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Found during a trip out to a hill right adjacent to U-Dig Fossil Quarry. The trip report can be FOUND HERE. This is the largest I've collected. Typical sizes I've found are 3-6mm in length, 1-3mm in width.
- 2 comments
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- agnostid trilobite
- delta
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While small, I'm still excited about finally picking up my first trilobites! Elrathia kingi and Peronopsis interstricta, both from the Wheeler Formation. The free cheeks on the baby kingi are very well preserved, hence why I choose him over some of the larger but more poorly preserved ones. On a side note, I just read on Wikipedia that Peronopsis interstricta was reclassified as Itagnostus interstrictus. Are they correct? I can't seem to find a reference to this anywhere respectable.
- 18 replies
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- Elrathia kingi
- Itagnostus interstrictus
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