DKP/10 - Durmala [Upper Krol Phosphorite] (Cambrian of India)

Where: India (30.5° N, 78.2° E: paleocoordinates 7.6° S, 170.8° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Upper Krol Phosphorite Formation, Tommotian (525.5 - 521.0 Ma)

• LITHOSTRATIGRAPHIC RELATIONS: From the Upper Krol Phosphorite, for which lithostratigraphic relations are not discussed. AGE: Tommotian, on the basis of microfauna biostratigraphy. STRATIGRAPHIC POSITION: From middle part of local section at Durmala, between 9 and 10 m.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, phosphatic, pyritic, gray shale

• ENVIRONMENT: Not stated in text.
• LITHOLOGY: Grey pyritiferous shale with 20 cm banded phosphorite in the middle. LITHIFICATION: Lithified on the basis of facies and sample preparation.

Size classes: mesofossils, microfossils

Preservation: replaced with phosphate

Collection methods: bulk, chemical,

• COLLECTOR: Not stated in text, but presumably the authors. REPOSITORY: Wadi Institute of Himalayan Geology (WIMF).

Primary reference: R. J. Azmi and V. P. Pancholi. 1983. Early Cambrian (Tommotian) conodonts and other shelly microfauna from the upper Krol of Mussoorie Syncline, Garhwal Lesser Himalaya with remarks on the Precambrian-Cambrian boundary. Himalayan Geology 11:360-372 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87101: authorized by Austin Hendy, entered by Austin Hendy on 04.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Fairly exhaustive faunal list. NOMENCLATURE: Authoritative publication, with relatively modern nomenclature and species-resolution identifications.
unclassified
  -
Problematica indet. Andrews 1970
Listed as "Insertae Sedis"; seggregation of irregularly coiled tubes presenting a complex nature of tubular arrangment