FMM (Devonian of Japan)

Where: Japan (36.9° N, 137.8° E: paleocoordinates 10.2° S, 105.7° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Kuruma Group, Givetian (387.7 - 382.7 Ma)

• Devonian pebbles within a Lower Jurassic conglomerate.

Environment/lithology: marine; lithified, conglomeratic conglomerate

• The conglomerate has a sandy matrix and consists of subrounded to rounded pebbles, whose constituents are basic to intermediate volcanic rocks (abundant), chert (abundant), limestone (common), shale (common) and sandstone (relatively rare). Fossils are associated with the Devonian pebbles.

Size class: mesofossils

Collection methods: surface (float), peel or thin section,

Primary reference: S. Niko, Y. Ibaraki, and J. Tazawa. 2014. Devonian tabulate corals from pebbles in Mesozoic conglomerate, Kotaki, Niigata Prefecture, central Japan. Part 1: Favositina. Science Reports of Niigata University (Geology) (29)53-66 [W. Kiessling/S. Triple]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 158155: authorized by Wolfgang Kiessling, entered by Super Triple on 16.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Favositida - Pachyporidae
Hillaepora sp. Mironova 1960 tabulate coral
Thamnopora itoae tabulate coral
Thamnopora nicholsoni tabulate coral
Thamnoptychia mana tabulate coral
 Favositida - Favositidae
Plicatomurus sp. Chang 1959 tabulate coral
Pachyfavosites sp. Sokolov 1952 tabulate coral
2 indeterminate species
Favosites sp. Lamarck 1816 tabulate coral