Katsuhira (Paleocene to of Japan)

Where: Hokkaido, Japan (43.0° N, 143.6° E: paleocoordinates 47.4° N, 135.8° E)

• coordinate estimated from map

When: Katsuhira Formation, Selandian to Selandian (61.6 - 56.0 Ma)

• upper Selandian to lowest Thanetian Katsuhira Formation

Environment/lithology: basinal (siliceous); lithology not reported

• bathyal; wood fall

Size class: macrofossils

Primary reference: K. Amano, K. Hryniewicz, and R. G. Jenkins. 2018. A newly discovered Paleocene species of Boreocomitas (Gastropoda: Pseudomelatomidae) from eastern Hokkaido, Japan, with implications for the biogeography of the Paleocene Bering Strait. The Nautilus 132(3-4):117-123 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 206290: authorized by Mark Uhen, entered by Mark Uhen on 08.11.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Gastropoda
 Sorbeoconcha - Aporrhaidae
Kangilioptera sp. Rosenkrantz 1970 snail
 Neogastropoda - Pseudomelatomidae
Boreocomitas inouei n. sp. Amano et al. 2018 snail
 Neogastropoda - Cancellariidae
 Sorbeoconcha - Naticidae
Naticidae indet. Guilding 1834 moon snail
 Heterostropha - Ringiculidae
 Opisthobranchia - Cylichnidae
Acteocina sp. Gray 1847 barrel-bubble
Bivalvia
 Pectinida - Limidae
Limaria sp. Link 1807 file clam
 Pectinida - Propeamussiidae
 Lucinida - Thyasiridae
 Lucinida - Lucinidae
Myrtea ezoensis Nagao 1957 clam
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
 Nuculida -
 Nuculida - Nuculidae
Acila (Truncacila) hokkaidoensis Nagao 1932 divaricate nutclam
 Nuculanida - Tindariidae
 Nuculanida - Nuculanidae
Ezonuculana aff. obsoleta pointed nut clam
 Nuculanida - Malletiidae
Scaphopoda
 Dentaliida - Dentaliidae
Striodentalium sp. Habe 1964 tusk shell
 Dentaliida - Laevidentaliidae
Laevidentalium sp. Cossmann 1888 tusk shell