Sinuiju Formation
Sinuiju Formation
Stratigraphic range : Barremian -Aptian
Sub-units 8 members
Thickness >500 metres (1,600 ft)
Lithology
Location
Coordinates 40°06′N 124°24′E/40.1°N 124.4°E/ 40.1; 124.4
Approximate paleocoordinates 43°48′N 125°48′E/43.8°N 125.8°E/ 43.8; 125.8
Type section
The Sinuiju Formation (신의주층) is a geologic formation in North Korea . Formerly of uncertain age, it is now thought to be Early Cretaceous . A variety of fossils are known from the formation, including those of anurognathid pterosaurs (possibly Jeholopterus enantiornithine with a 5 cm (2.0 in) long tibia and a 3.5 cm (1.4 in) long pygostyle. Frogs have also been found in the formation. Numerous compression fossils of insects have also been found.
Fossil content Fish Fish from the Sinujiu FormationGenus Species Material Notes Member Images Lycoptera L. sp.Acipenseriformes Indeterminate
Amphibians Amphibians from the Sinujiu FormationGenus Species Material Notes Member Images Anura Anura indet. (Possibly Liaobatrachus grabaui
Pterosaurs Pterosaurs from the Continental Teriminal FormationGenus Species Material Notes Member Images Jeholopterus J. cf. ningchengensis Specimen CKGP 19960828, formerly PS198922 Pterosauria Indeterminate Specimen PS199921
Dinosaurs Birds Birds from the Sinujiu FormationGenus Species Material Notes Member Images Confuciusornithidae Confuciusornithidae indet. (Includes the fossil known colloquially as the Archaeopteryx Korea ) Enantiornithes Indeterminate Ornithurae Indeterminate
Non-avian dinosaurs Dinosaurs from the Sinujiu FormationGenus Species Material Notes Member Images Dinosauria Indeterminate A single tooth
Mammals Proboscideans from the Continental Teriminal FormationGenus Species Material Notes Member Images Multituberculata Indeterminate
Insects Insects from the Sinujiu FormationGenus Species Material Notes Member Images Angarosphex A. baektoensus Ephemeropsis E. spKarataus K. ryonsangensis Sinuijumantispa S . ryonsangiensis Stenophlebia S . ryonsangensis Stellularis S . sinuijuensis Sinuijus S . baektoensis Sinuijuhelorus S. baektoensis Pompilopterus P . ryonsangensis Zygadenia Z . liui
Conchostracans Conchostracans from the Sinujiu FormationGenus Species Material Notes Member Images Eosestheria E. sp.A conchostracan
Uncertain Uncertain fossils from the Sinujiu Formation Genus Species Material Notes Member Images "Proornis " P. coreae Nomen nudum ; assigned to Osteichthyes by the original describer in 1993 but assigned to Aves in 1996
See also