Where: Arizona (35.2° N, 111.7° W: paleocoordinates 9.2° N, 36.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Harrisburg Member (Kaibab Formation), Roadian (272.3 - 268.8 Ma)
• Lower Harrisburg Member
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified limestone
Size class: microfossils
Collection methods: chemical, mechanical, sieve
• The materials for this study were mostly collected from the loosely consolidated sandy limestones, processed in a weak acetic acid solution and screen-washed through graded screens. Sediment residues were then picked under a binocular microscope. Larger specimens from large limestone blocks were prepared mechanically. Repository: Museum of Northern Arizona (MNA).
Primary reference: D. K. Elliott and J. P. M. Hodnett. 2013. A new species of Bransonella (Chondrichthyes, Xenacanthimorpha, Bransonelliformes) from the Middle Permian Kaibab Formation of northern Arizona. Journal of Paleontology 87:1136-1142 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 152132: authorized by Matthew Clapham, entered by Matthew Clapham on 08.11.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Bransonella tribula n. sp. Elliott and Hodnett 2013 elasmobranch Assumed to be type locality, because teeth are mentioned to be abundant
Bransonella ? tribula Elliott and Hodnett 2013 elasmobranch fin-spines, tentatively associated with species
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