Mud Mounds, North West Lybia (Ordovician of Libya)

Also known as Reef 2705

Where: Tripolitania, Libya (29.8° N, 12.3° E: paleocoordinates 29.8° N, 12.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jifarah Formation, Ashgill (449.5 - 443.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: slope or ramp reef; lithified limestone

• The bryozoan-rich limestones are mostly mudstones and wackestones, with bafflestone and floatstone textures, but the mounds apparently lack organic framework and microbial fabrics.

Size class: macrofossils

Collection methods: core, peel or thin section

• Hydrocarbon Exploration

Primary reference: C. J. Buttler, L. Cherns, and D. Massa. 2007. Bryozoan mud-mounds from the Upper Ordovician Jifarah (Djeffara) Formation of Tripolitania, north-west Libya. Palaeontology 50(2):479-494 [W. Kiessling/F. Reichel/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75420: authorized by Wolfgang Kiessling, entered by Falko Reichel on 09.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Stenolaemata
 Cystoporata -
Fistuliporina indet.
Fistuliporina indet. Astrova 1964
 Cystoporata - Xenotrypidae
aff. Hennigopora sp.
 Trepostomida - Amplexoporidae
Monotrypa sp.
Monotrypa sp. Nicholson 1879
 Trepostomida -
Jifarahpora libyensis n. gen. n. sp.
Jifarahpora libyensis n. gen. n. sp. Buttler et al. 2007
 Cyclostomata - Crownoporidae
Kukersella borealis
Kukersella borealis Bassler 1911
 Cryptostomata - Escharoporidae
Graptodictya sp.
Graptodictya sp. Ulrich 1882
 Trepostomata - Heterotrypidae
Dekayia sp.
Dekayia sp. Milne-Edwards and Haime 1851
 Trepostomata - Halloporidae
Hallopora sp.
Hallopora sp. Bassler 1911
 Trepostomata - Aisenvergiidae
Orbipora indenta
Orbipora indenta Bassler 1911