Khorbusuonka River, Olenek River basin (Cambrian of Russian Federation)

Also known as Olenek River basin, Khorbusuonka River, Siberian Plat. - Solov'yev 1988

Where: Siberia, Russian Federation (68.5° N, 112.4° E: paleocoordinates 15.6° S, 6.0° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Paradoxides sacheri - Tomagnostus fissus trilobite zone, Kuonamka Formation, Amgan (510.2 - 504.5 Ma)

• PJW: The Paradoxides sacheri - Tomagnostus fissus zone here is the Kuonamka formation, which is Amgan.

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone and lithified shale

• General lithology: bituminous limestones and black shales. The lithology information for the area is from the International Commission on Stratigraphy -- URL: http://www.uni-wuerzburg.de/palaeontologie/Stuff/casu17.htm

Size classes: macrofossils, mesofossils

Collection methods: The trilobite species described characterize the Yudoma-Olenek region, yet many of the localities are in other well studied facies regions that have specific lithologies and paleo-environments as determined by the International Subcommission on Cambrian Stratigraphy.

Primary reference: I. A. Solov''yev. 1988. New Cambrian trilobites from the Northern Siberian Platform. Paleontological Journal 21(2):55-63 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10002: authorized by Mark Patzkowsky, entered by Phil Borkow on 07.02.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only trilobites are included in the taxonomic lists.
Artiopoda
 Agnostida - Ptychagnostidae
"Ptychagnostus (Triplagnostus) gibbus" = Triplagnostus gibbus
"Ptychagnostus (Triplagnostus) gibbus" = Triplagnostus gibbus Linnarsson 1869
Trilobita
 Corynexochida - Oryctocephalidae
Tonkinella khorbusuokensis n. sp. trilobite
5 cranidia