Colebrook Island (Oligocene of India)

Where: Andaman and Nicobar Islands, India (12.2° N, 92.9° E: paleocoordinates 5.1° N, 99.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Oligocene (33.9 - 23.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; lithology not reported

Size class: microfossils

Primary reference: R. N. Lakhanpal, H. K. Maheshwari, and N. Awasthi. 1976. A Catalogue of Indian Fossil Plants. 1-318 [B. Allen/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224622: authorized by Bethany Allen, entered by Bethany Allen on 24.03.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Chrysophyceae
 Phytomastigophora - Dictyochaceae
Dictyocha fibula Ehrenberg 1838
var. rhombica
Bacillariophyceae
 Triceratiales - Plagiogrammaceae
 Achnanthales - Cocconeidaceae
Campyloneis grevillei diatom
var. regalis
 Stictodiscales - Stictodiscaceae
 Rhaphoneidales - Rhaphoneidaceae
 Coscinodiscales - Heliopeltaceae
 Coscinodiscales - Coscinodiscaceae
  -
Xanthiopyxis oblonga Ehrenberg 1845 diatom
 Arachnoidiscales - Arachnoidiscaceae
 Tabellariales - Tabellariaceae
 Centrales - Eupodiscaceae
 Cymatosirales - Cymatosiraceae
 Asterolamprales - Asterolampraceae