Where: Iwate, Japan (39.9° N, 141.9° E: paleocoordinates 53.1° N, 140.9° 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
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 91321: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.09.2009, edited by Wolfgang Kiessling
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Latusastrea sp. d'Orbigny 1850 stony coral | |
Polyphylloseris mammillata Eguchi 1951 stony coral | |
Dermosmilia nagaoi n. sp.
Dermosmilia nagaoi n. sp. Eguchi 1951 stony coral | |
"Amphiastrea hiraigaensis n. sp." = Pleurostylina hiraigaensis
"Amphiastrea hiraigaensis n. sp." = Pleurostylina hiraigaensis Eguchi 1951 stony coral | |
| |
"Thamnasteria hiraigaensis n. sp." = Dimorphastrea toucasi
"Thamnasteria hiraigaensis n. sp." = Dimorphastrea toucasi Fromentel 1886 stony coral | |
Eugyra cf. cotteaui Fromentel 1857 stony coral | |
"Pseudoagatheria hiraigaensis n. gen. n. sp." = Bantamia hiraigaensis
"Pseudoagatheria hiraigaensis n. gen. n. sp." = Bantamia hiraigaensis Eguchi 1951 stony coral |