Gokase-cho, Miyazaki Prefecture, Gionyama Fm, Locality KL4 (Silurian to of Japan)

Where: Gokase, Japan (32.6° N, 131.2° E: paleocoordinates 32.6° N, 131.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Middle Member (Gionyama Formation), Telychian to Telychian (438.5 - 425.6 Ma)

• Late Llandovery to early Ludlow.

• group of beds-level stratigraphic resolution

Environment/lithology: slope or ramp reef; lithified, massive, conglomeratic limestone

• Limestone conglomerate intercalated with thin lenticular beds of tuffaceous shale and sandstone. The limestone conglomerate yields abundant corals with various other fossils, such as stromatoporoids, crinoids, bryozoans, and gastropods. Kido and Sugiyama (2007a) suggested that the limestone conglomerate of the Middle Member might have derived from shallow-water reehrl limestone, and was transported and deposited as the result of a debris flow or storm

•action on a reef slope or along a reef front.

• massive limestone conglomerate (pink)

Size class: mesofossils

Collection methods: Author has several papers from this area and locality, but each one describes a single component of the fauna.

Primary reference: E. Kido and T. Sugiyama. 2011. Silurian rugose corals from the Kurosegawa Terrane, Southwest Japan, and their paleobiogeographic implications. Bulletin of Geosciences 86(1):49-61 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140718: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 15.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Cystiphyllida - Tryplasmatidae
Tryplasma "sp. B" Lonsdale 1845 horn coral