Matsushima, Omoto-mura (Cretaceous of Japan)

Where: Iwate, Japan (39.8° N, 142.0° E: paleocoordinates 53.0° N, 141.0° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Hiraiga Sandstone Formation (Miyako Group), Late/Upper Aptian (122.5 - 113.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified, calcareous sandstone

• shallow open-marine setting with abundant fossils (corals, rudists, molluscs, calcareous algae, foraminifers); small coral-rudist buildups may have existed (reef 1216)

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 91325: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.09.2009, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Heterocoeniidae
Latusastrea sp., "Miyakosmilia cf. ishidai" = Heterocoenia
Latusastrea sp. d'Orbigny 1850 stony coral
"Miyakosmilia cf. ishidai" = Heterocoenia stony coral
 Scleractinia - Montlivaltiidae
? Isastrea sp.
? Isastrea sp. Milne-Edwards and Haime 1851 stony coral
 Scleractinia - Eugyridae
Eugyra cf. cotteaui
Eugyra cf. cotteaui Fromentel 1857 stony coral
 Scleractinia - Comoseriidae
Polyphylloseris mammillata n. sp.
Polyphylloseris mammillata n. sp. Eguchi 1951 stony coral
 Scleractinia - Actinacididae
? Actinacis miyakoensis n. sp.
? Actinacis miyakoensis n. sp. Eguchi 1951 stony coral
 Scleractinia - Microsolenidae
Kobya ragaensis
Kobya ragaensis Eguchi 1951 stony coral
subsp. nagaoi
 Scleractinia - Montastraeidae
"Placocoenia orbitoides" = Montastrea orbitoides
"Placocoenia orbitoides" = Montastrea orbitoides Eguchi 1951 stony coral
 Scleractinia - Stylinidae
"Placocoenia japonica n. sp." = Silingastraea japonica
"Placocoenia japonica n. sp." = Silingastraea japonica Eguchi 1951 stony coral
 Helioporacea - Helioporidae
"Heliopora japonica" = Pseudopolytremacis japonica
"Heliopora japonica" = Pseudopolytremacis japonica Eguchi 1948