Chaetetids from the Upper Carboniferous Buckhorn Asphalt Quarry Lagerstätte, Oklahoma

Conference contribution
(Abstract of a poster)


Publication Details

Author(s): Seuß B, Senowbari-Daryan B, Nützel A
Publication year: 2013
Language: English


Abstract

Chaetetid sponges from the Desmoinesian Buckhorn Asphalt Quarry
Lagerstätte represent the largest benthic organisms in this outcrop
(max. diameter: 21 cm, max. height: 8.3 cm). Deposition of the
chaetetid-bearing sediments occurred in a shallow (euphotic zone II-III)
marine setting near the palaeo-equator. The siliciclastic-carbonatic
sediments from the Lagerstätte were impregnated by migrating
hydrocarbons during or shortly after deposition hence, fossil
preservation is generally outstanding.
Chaetetid skeletons from the quarry originally consisted of high
Mg-calcite. Two morphotypes are present, comprising domical and laminar
growth, which indicates genetic rather than environmental control.
Internal skeletal features comprise tabulae, spine-like projections,
pseudoseptae, growth disturbances, and greyish structures. Tubule
diameter and length is variable, and spicules are absent. Skeletal
fragmentation is common and indicates complex taphonomic mechanisms.
Some specimens display large incisions indicating physical impact. The
skeletal surface is also often covered by microbial mats associated with
Mn-carbonatic cements.


FAU Authors / FAU Editors

Senowbari-Daryan, Baba apl. Prof. Dr.
Naturwissenschaftliche Fakultät
Seuß, Barbara Dr.
Lehrstuhl für Paläoumwelt


External institutions with authors

Ludwig-Maximilians-Universität (LMU)


How to cite

APA:
Seuß, B., Senowbari-Daryan, B., & Nützel, A. (2013). Chaetetids from the Upper Carboniferous Buckhorn Asphalt Quarry Lagerstätte, Oklahoma. Poster presentation at Annual Meeting of the Paläontologische Gesellschaft, Göttingen.

MLA:
Seuß, Barbara, Baba Senowbari-Daryan, and Alexander Nützel. "Chaetetids from the Upper Carboniferous Buckhorn Asphalt Quarry Lagerstätte, Oklahoma." Presented at Annual Meeting of the Paläontologische Gesellschaft, Göttingen 2013.

BibTeX: 

Last updated on 2018-06-12 at 09:23