near Consata (Ordovician of Bolivia)

Where: Bolivia (15.5° S, 68.6° W: paleocoordinates 46.3° S, 121.8° W)

• coordinate stated in text

• local area-level geographic resolution

When: Archiclimacograptus decoratus graptolite zone, Coroico Formation, Darriwilian (467.3 - 458.4 Ma)

• Archiclimacograptus decoratus zone. Da2-Da3; given as Llanvirn elsewhere.

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal; black siltstone

• black siltstones intercalated with thin beds of siltstone. The Coroico Formation crops out primarily in the core of broad anticlinal structures and comprises mainly black siltstones. The base of the sequence is not exposed. The lower most strata are fine brownish sandstones with horizontal lamination that grade upward into carbonaceous siltstones and fine gained sandstones. The unit coarsens upward and grades into the more sand-rich Amutara Formation. Shelly fossils are rare and are principally the trilobites

Size classes: macrofossils, mesofossils, microfossils

Primary reference: C. Mitchell, E. D. Brussa, and J. Maletz. 2008. A mixed Isograptid-Didymograptid Graptolite assemblage from the Middle Ordovician of West Gondwana (NW Bolivia): implications for Graptolite Paleoecology. Journal of Paleontology 82(6):1114-1126 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 145517: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 04.06.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Diplograptidae
Hustedograptus bulmani
 Graptoloidea - Climacograptidae
Oelandograptus oelandicus
 Graptoloidea - Glossograptidae
Cryptograptus schaeferi
Cryptograptus schaeferi Lapworth 1880 graptolite
 Graptoloidea - Isograptidae
Parisograptus caduceus
Parisograptus caduceus Salter and Bigby 1853 graptolite
 Graptoloidea - Tetragraptidae
Pseudotrigonograptus sp.
 Graptoloidea - Dichograptidae
Didymograptus sp., Didymograptus cf. murchisoni
Didymograptus sp. McCoy 1851 graptolite
Didymograptus cf. murchisoni Beck 1839 graptolite
 Graptoloidea -
Pseudamplexograptus latus
Pseudamplexograptus latus Bulman 1931 graptolite
  -
Thamnograptus ? sp.
Trilobita
 Trinucleida - Trinucleidae
Incaia nordenskioeldi
 Asaphida - Asaphidae
Hoekaspis yahuari, Hoekaspis sp.
Hoekaspis sp. Kobayashi 1937 trilobite
 Phacopida - Homalonotidae
Huemacaspis teopontensis
Rhynchonellata
 Orthida - Heterorthidae
Tissintia sp.