Where: South Korea (37.2° N, 129.0° E: paleocoordinates 0.1° N, 140.2° E)
• coordinate estimated from map
When: Asaphellus trilobite zone, Tumugol Formation, Tremadocian (485.4 - 477.7 Ma)
• Part of the Choson Supergroup...
•...it measures ca. 120 m in thickness, including a 57-m-thick concealed portion at the base and represents approximately the lower two-thirds of the Tumugol Formation.
Environment/lithology: calcareous shale and conglomeratic limestone
•influenced by storm activities.
Size class: mesofossils
• specimens are small rectangular elements (2-10mm long), displaying a great morphological variability. This variability raises the questions of the presence of several morphotypes in the Korean material, possibly related to the co-occurrence of different species or to a possible asymmentry between left and right adorals (as in some other kirkocystids).
Preservation: mold/impression
Collection methods: Skeletal elements of kirkocystid mitrates were collected from the Asaphellus Zone of the section...
Primary reference: S.-B. Lee, B. Lefebvre, and D.K. Choi. 2004. Morphometric analysis of Tremadocian (earliest Ordovician) kirkocystid mitrates (Echinodermata, Stylophora) from the Taebaeksan Basin, Korea. Geobios 37:731-748 [B. Seuss/B. Seuss/B. Seuss]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 215847: authorized by Barbara Seuss, entered by Barbara Seuss on 26.11.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Asaphellus coreanicus trilobite
Asaphellus tomkolensis trilobite | |
Hystricurus sp. Raymond 1913 trilobite | |
Lingulata | |
Lingulella sp. Salter 1866 | |
Rhynchonellata | |
Eoorthis sp. Walcott 1908 | |
Polychaeta | |
Sphenothallus sp. Hall 1847
Plumulites sp. Barrande 1872 scale worm | |
unclassified | |
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