Additional Waboomberg Formation Echinoderms, South Africa (Devonian of South Africa)

Where: South Africa (33.0° S, 20.0° E: paleocoordinates 65.2° S, 155.1° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Waboomberg Formation, Eifelian (393.3 - 387.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; bioturbated, intraclastic siltstone and bioturbated, intraclastic mudstone

• Ref. 9618 gives interpretation of Bokkeveld Group as a series of shallowing-upward packages, with argillaceous unit below and arenaceous unit above. Waboomberg Formation is the "fourth shale", i.e. the fourth argillaceous unit. The shallowing upward sequence is interpreted as representing environments from the shelf up to deltaic systems. Most fossils come from lower mudstones, often in lenses.
• . Ref. 9617, for formation as a whole, cites "Siltstone and mudstone, rare thin bedded sandstone, massive or horizontal and ripple laminated, intraclast lenses bioturbated, fossiliferous lenses"

Collection methods: Included are occurrences that cannot obviously be assigned to one of the localities of ref. 9616.

Primary reference: P. A. Jell and J. N. Theron. 1999. Early Devonian echinoderms from South Africa. Memoirs of the Queensland Museum 43(1):115-199 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39149: authorized by Michael Foote, entered by Michael Foote on 21.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Echinoderms only.
Ophiuroidea
 Oegophiurida - Protasteridae
Strataster ohioensis Kesling and Le Vasseur 1971 brittle star
Strataster stuckenbergi Rilett 1971 brittle star
  - Encrinasteridae
Encrinaster tischbeinianus Roemer 1864 brittle star
Blastoidea
 Fissiculata -
Pachyblastus dicki Breimer and Macurda 1972
Crinoidea
 Cladida -
Cradeocrinus plenarius n. sp. Sea lily