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

Show authors, comments, and common names
Cycadopsida
 Cycadales -
"Nilssonia sp." = Nilsonia
"Nilssonia sp." = Nilsonia Brongniart 1825 cycads
Peltaspermopsida
 Peltaspermales - Leuthardtiaceae
"? Glossophyllum sp." = Arberophyllum
"? Glossophyllum sp." = Arberophyllum Doweld 2000
Crinoidea
 Isocrinida - Pentacrinitidae
Pentacrinus cf. shahuensis
Pentacrinus cf. shahuensis Shao 1960 Sea lily
Gastropoda
 Seguenzioidea - Eucyclidae
"Amberleyidae indet." = Eucyclidae
"Amberleyidae indet." = Eucyclidae Koken 1896 snail
Bivalvia
 Nuculanida - Malletiidae
Palaeoneilo hulukouensis
Palaeoneilo hulukouensis clam
ssp. jinjiensis
 Carditida - Cardiniidae
Cardinia cf. toriyamai, Cardinia cf. hybrida
Cardinia cf. toriyamai Hayami 1958 clam
Cardinia cf. hybrida Sowerby 1817 clam
 Hiatellida - Hiatellidae
Hiatella curta
Hiatella curta Chen 1982 clam
 Mytilida - Mytilidae
Mytilus lamellosus
Mytilus lamellosus Terquem 1855 mussel
 Myalinida - Kolymiidae
"Parainoceramus sp." = Kolymia
"Parainoceramus sp." = Kolymia clam
 Ostreida - Malleidae
Isognomon sp.
Isognomon sp. Lightfoot 1786 oyster
 Pectinida - Oxytomidae
Oxytoma bifurcata
Oxytoma bifurcata Fan 1963 scallop
 Pectinida - Pectinoidae
"Chlamys subulata" = Camptonectes subulatus
"Chlamys subulata" = Camptonectes subulatus Goldfuss 1834 scallop
Cephalopoda
 Ammonitida - Echioceratidae
Echioceras sp.
Echioceras sp. Bayle 1878 ammonite
 Ammonitida - Arietitidae
Arnioceras sp., Arietites cf. semicostatus, Arietites semicostatus, Coroniceras spp., Coroniceras rotiforme, Agassiceras sp.
Arnioceras sp. Hyatt 1867 ammonite
Arietites cf. semicostatus Young and Bird 1828 ammonite
Arietites semicostatus Young and Bird 1828 ammonite
Coroniceras spp. Hyatt 1867 ammonite
Coroniceras rotiforme Sowerby 1824 ammonite
Agassiceras sp. Hyatt 1874 ammonite
 Ammonitida - Asteroceratidae
Asteroceras sp.
Asteroceras sp. Hyatt 1867 ammonite
 Phylloceratida - Phylloceratidae
Phylloceras sp.
Phylloceras sp. Suess 1865 ammonite