Left bank of Aldan River, 4 km above the mouth of Dyalkhakh River. Bed 2 (Cambrian of Russian Federation)

Also known as Р. АJlДаи, левый берег, 4 км выше устья Дьалхах

Where: Sakha, Russian Federation (61.3° N, 135.5° E: paleocoordinates 13.7° S, 19.2° W)

• coordinate based on nearby landmark

When: Nochoroicyathus sunnaginicus other zone, Sunnagin Member (Pestrotsvet Formation), Tommotian (525.5 - 521.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; ooidal dolomite and glauconitic, gray, green limestone

• Without visible traces of erosion, the massive oolitic dolomites are overlain by thin-platy gray-green limestones with glaucone grains in the upper In some parts, a pinkish color appears in the rocks. Many bright archaeocyaths, chiolites, gastropods, brachiopods, chiolites

Size classes: macrofossils, mesofossils, microfossils

Primary reference: N. P. Meshkova. 1974. Lower Cambrian hyoliths of the Siberian Platform. In I.T. Žuravleva (ed.), Ârusnoe ralenenie nižnego kembriâ Sibiri. Atlas okamenelostej. Trudy Instituta Geologii i Geofiziki, SO AN SSSR [Academy of Sciences of the USSR Siberian Branch Transactions of the Institute of Geology and Geophysics] 97:1-110 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232887: authorized by Pete Wagner, entered by Pete Wagner on 05.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
 Hyolithelminthida - Hyolithellidae
Hyolithellus tenuis, Hyolithellus vladimirovae
Hyolithellus tenuis Rozanov and Missarzhevsky 1966
Hyolithellus vladimirovae Rozanov and Missarzhevsky 1966
 Hyolithelminthida - Torellellidae
Torellella sp.
Torellella sp. Holm 1893
Archaeocyatha
 Archaeocyathida - Loculicyathidae
Okulitchicyathus disciformis
Okulitchicyathus disciformis archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus polaris
Archaeolynthus polaris archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
Ajacicyathus virgatus, Nochoroicyathus aldanicus, Nochoroicyathus vulgaris, "Ajacicyathus sunnaginicus" = Nochoroicyathus sunnaginicus
Ajacicyathus virgatus archaeocyath sponge
Nochoroicyathus aldanicus archaeocyath sponge
Nochoroicyathus vulgaris archaeocyath sponge
"Ajacicyathus sunnaginicus" = Nochoroicyathus sunnaginicus Zhuravleva 1960 archaeocyath sponge
 Ajacicyathida - Dokidocyathidae
Dokidocyathus sp.
Dokidocyathus sp. Taylor 1910 archaeocyath sponge
 Capsulocyathida - Cryptoporocyathidae
Cryptoporocyathus junicanensis
Cryptoporocyathus junicanensis archaeocyath sponge
Coleoloides
  -
Coleoloides sp.
Coleoloides sp. Walcott 1890
Scyphozoa
 Anabaritida - Anabaritidae
"Anabarites tripartitus" = Selindeochrea tripartita
"Anabarites tripartitus" = Selindeochrea tripartita Rozanov et al. 1969 jellyfish
Hyolitha
 Orthothecida - Aldanothecidae
Aldanotheca minor, Aldanotheca sulcata
 Orthothecida - Allathecidae
Allatheca sp.
Allatheca sp. Rozanov et al. 1969
Brachiopoda
 Tommotiida - Sunnaginiidae
Sunnaginia imbricata
Sunnaginia imbricata Rozanov et al. 1969
 Tommotiida - Lapworthellidae
Lapworthella tortuosa
 Tommotiida - Tommotiidae
Camenella garbowskae, "Tommotia admiranda" = Camenella admiranda
Camenella garbowskae Rozanov and Missarzhevsky 1966
"Tommotia admiranda" = Camenella admiranda Rozanov and Missarzhevsky 1966