Starshot Glacier reefs (Cambrian of Antarctica)

Also known as Reef 1770

Where: Antarctica (82.0° S, 159.0° E)

• Paleocoordinates: 13.4° S, 127.2° E (Wright 2013)

• coordinate stated in text

• local area-level geographic resolution

When: Shackleton Formation, Botomian (516.0 - 512.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified reef rocks and lithified limestone

• Microbial-archaeocyathan reef complex, 50 m thick. 3 reef types: Renalcis boundstone without archaeocyathans, stromatactis-bearing microbial boundstones, and Epiphyton bearing boundstones with archaeocyathans. Archaeocyathans are locally abundant but were not essential to the reef construction.

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: M. N. Rees, B. R. Pratt, and A. J. Rowell. 1989. Early Cambrian reefs, reef complexes, and associated lithofacies of the Shackleton Limestone, Transarctic Mountains. Sedimentology 36:341-361 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 80915: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.05.2008

Creative Commons license: CC0 (CC0)

Taxonomic list

• Archaeocyathans from reef and subreef facies.
Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella sp. Nicholson and Etheridge 1878
Renalcis
  - Chabakoviacea
Renalcis sp. Vologdin 1932
Epiphyton
  - Ludloviaceae
Epiphyton sp. Bornemann 1886
Archaeocyatha
 Capsulocyathida - Mawsonicoscinidae
Mawsonicoscinus sigmoides n. gen. n. sp. archaeocyath sponge
 Ajacicyathida - Polycoscinidae
"Erugatocyathus scutatus" = Polycoscinus
"Erugatocyathus scutatus" = Polycoscinus archaeocyath sponge
 Ajacicyathida - Anaptyctocyathidae
Anaptyctocyathus manserghi n. sp. archaeocyath sponge
Anaptyctocyathus sp. Debrenne 1969 archaeocyath sponge
 Ajacicyathida - Veronicacyathidae
? Veronicacyathus gravestocki n. sp. archaeocyath sponge
 Ajacicyathida - Sigmocoscinidae
? Sigmocoscinus cf. annulatus archaeocyath sponge
Sigmocoscinus sp. archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
Ajacicyathus cf. ajax archaeocyath sponge
Ajacicyathus cf. araius archaeocyath sponge
Stapicyathus incisus archaeocyath sponge
 Ajacicyathida - Sajanocyathidae
? Sajanocyathus sp. archaeocyath sponge
 Ajacicyathida - Bronchocyathidae
Cyathocricus tracheodentatus, "Thalamopectinus arterialis" = Thalamocyathus
Cyathocricus tracheodentatus archaeocyath sponge
"Thalamopectinus arterialis" = Thalamocyathus archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
Ethmocyathus lineatus archaeocyath sponge
 Ajacicyathida - Sigmocyathidae
? Didymocyathus ? hillae archaeocyath sponge
 Ajacicyathida - Erbocyathidae
Ladaecyathus jagoi n. sp. archaeocyath sponge
 Ajacicyathida - Vologdinocyathidae
Sanarkophyllum antarcticum n. gen. archaeocyath sponge
 Ajacicyathida - Botomocyathidae
Clathrithalamus mawsoni n. gen. n. sp.
Clathrithalamus mawsoni n. gen. n. sp. archaeocyath sponge
 Ajacicyathida - Dokidocyathidae
Dokidocyathus simplicissimus archaeocyath sponge
 Archaeocyathida - Archaeocyathidae
"? Palmericyathellus ? tabularis" = Sigmofungia archaeocyath sponge
Pycnoidocyathus latiloculatus archaeocyath sponge
? Pycnoidocyathus ecdemus archaeocyath sponge
 Archaeocyathida - Syringocnemidae
Syringocnema favus archaeocyath sponge
Pseudosyringocnema gracilis archaeocyath sponge
 Monocyathida - Monocyathidae
? Archaeolynthus sp. Taylor 1910 archaeocyath sponge