Horlick Formation lithofacies 5 (Devonian of Antarctica)

Where: Antarctica (84.8° S, 115.0° W: paleocoordinates 34.6° S, 175.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Horlick Formation, Early/Lower Devonian (419.2 - 393.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone

• The marine lithofacies 1-8 are interpreted as "shallow inner shelf to shoreline, where storms produced a changing pattern of coarse sand bars and finer troughs." Lithofacies 5 interpreted as "subtidal bars and sand tongues"
• "Thick, cross-bedded, coarse to medium grained, upward-fining sandstones with rare body fossils. Trace fossils are locally common. Grades up into Lithofacies 4."

Collection methods: Taxa are listed as Present, Abundant, Rare.

Primary reference: M. A. Bradshaw and L. McCartan. 1991. Palaeoecology and systematics of Early Devonian bivalves from the Horlick Formation, Ohio Range, Antarctica. Alcheringa 15(1):1-42 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35563: authorized by Michael Foote, entered by Michael Foote on 21.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Chordata indet.
Chordata indet. Haeckel 1874
"fish material"
Trilobita
 Phacopida - Homalonotidae
Burmeisteria (Digonus) antarcticus
Bivalvia
 Pholadomyida -
Obrimia hadrosa n. sp.
Obrimia hadrosa n. sp. clam