Sham Chung, New Territories (Jurassic of Hong Kong)

Where: Hong Kong (22.4° N, 114.3° E: paleocoordinates 32.3° N, 119.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Tolo Channel Formation, Early/Lower Sinemurian (196.5 - 189.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, black, gray mudstone

• Blackish gray mudstone, shale, and yellowish white or gray muddy siltstone. Some of the fossil bearing layers contain carbon, cherty and pyritic tubercles and lenticules.

Size class: macrofossils

Preservation: mold/impression

Collected by C.M. Lee in 1980-1984

• Repository: not stated

Primary reference: C. M. Lee. 1984. Lower Jurassic fossil assemblages at Sham Chung, New Territories, Hong Kong. Geological Society of Hong Kong Newsletter 2(6):1-5 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137807: authorized by Matthew Clapham, entered by Matthew Clapham on 20.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Myalinida - Kolymiidae
"Parainoceramus sp." = Kolymia
"Parainoceramus sp." = Kolymia clam
 Pectinida - Pectinoidae
"Chlamys subulata" = Camptonectes subulatus
"Chlamys subulata" = Camptonectes subulatus Goldfuss 1834 scallop
 Pectinida - Oxytomidae
Oxytoma bifurcata Fan 1963 scallop
 Ostreida - Malleidae
Isognomon sp. Lightfoot 1786 oyster
 Mytilida - Mytilidae
Mytilus lamellosus Terquem 1855 mussel
 Carditida - Cardiniidae
Cardinia cf. hybrida Sowerby 1817 clam
Cardinia cf. toriyamai Hayami 1958 clam
 Hiatellida - Hiatellidae
Hiatella curta Chen 1982 clam
 Protobranchia - Malletiidae
Palaeoneilo hulukouensis clam
ssp. jinjiensis
Gastropoda
 Seguenzioidea - Eucyclidae
"Amberleyidae indet." = Eucyclidae
"Amberleyidae indet." = Eucyclidae Koken 1896 snail
Cephalopoda
 Ammonitida - Echioceratidae
 Ammonitida - Arietitidae
Arietites cf. semicostatus Young and Bird 1828 ammonite
Arietites semicostatus Young and Bird 1828 ammonite
Coroniceras rotiforme Sowerby 1824 ammonite
Arnioceras sp. ammonite
Agassiceras sp. ammonite
 Ammonitida - Asteroceratidae
 Phylloceratida - Phylloceratidae
Phylloceras sp. Suess 1865 ammonite
Crinoidea
  -
Pentacrinus cf. shahuensis Shao 1960 Sea lily
Peltaspermopsida
 Peltaspermales - Leuthardtiaceae
"? Glossophyllum sp." = Arberophyllum
"? Glossophyllum sp." = Arberophyllum Doweld 2000
Cycadopsida
 Cycadales -
"Nilssonia sp." = Nilsonia
"Nilssonia sp." = Nilsonia Brongniart 1825 cycads