Raga and northern Hiraiga, Tanohata-mura (Cretaceous to of Japan)

Where: Iwate, Japan (39.9° N, 141.9° E: paleocoordinates 53.3° N, 140.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Hiraiga Sandstone Formation (Miyako Group), Late/Upper Aptian to Late/Upper Aptian (122.5 - 109.0 Ma)

• upper Hiraiga "Orbitolina Beds"

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, calcareous sandstone

• Orbitolina-bearing calcareous sandstones

Size class: macrofossils

Primary reference: M. Eguchi. 1951. Mesozoic hexacorals from Japan. The Science Reports of the Tohoku University, Geology 24:1-96 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91330: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.09.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Haplaraeidae
"Thamnasteria contorta" = Meandrophyllia meandroides
"Thamnasteria contorta" = Meandrophyllia meandroides Koby 1898 stony coral
 Scleractinia - Microsolenidae
Kobya ragaensis n. sp.
Kobya ragaensis n. sp. Eguchi 1951 stony coral
 Scleractinia - Merulinidae
Diplogyra lamellosa
Diplogyra lamellosa Eguchi 1936 stony coral
 Scleractinia - Eugyridae
"Eohydnophora aff. picteti" = Eugyra (Felixigyra) picteti
"Eohydnophora aff. picteti" = Eugyra (Felixigyra) picteti Koby 1897 stony coral
 Scleractinia - Diplocteniopsidae
Latiphyllia ragaensis n. sp.
Latiphyllia ragaensis n. sp. stony coral