Where: Colorado (38.9° N, 105.3° W: paleocoordinates 40.4° N, 97.0° W)
• coordinate based on nearby landmark
When: Chadronian (37.2 - 33.9 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine - large; lithified, diatomaceous, tuffaceous shale
Size class: macrofossils
Preservation: adpression
Reposited in the YPM
• Repository: collection of W.H. Twenhofel of the University of Kansas (now apparently at YPM)
Primary reference: A. I. Petrunkevitch. 1922. Tertiary Spiders and Opilionids of North America. Connecticut Academy of Arts and Sciences 25:211-279 [D. Smith/A. Kinchloe/A. Kinchloe]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 35058: authorized by Dena Smith, entered by April Kinchloe on 28.10.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Arachnida | |
Tethneus twenhofeli n. sp.
|