Tachung, Lufeng (Jurassic of China)

Also known as Tachun, Dachung, Dachong

Where: Yunnan, China (25.2° N, 102.1° E: paleocoordinates 34.4° N, 104.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Shawan Member (Lufeng Formation), Hettangian (201.3 - 199.3 Ma)

• The Lufeng Formation has been divided into lower dark/dull purple beds (= Shawan Member) and upper dark/deep red beds (= Zhangjiawa Member). Luo & Wu (1994: In the Shadow of the Dinosaurs, pp. 251–270) argue on the basis of vertebrate biostratigraphy for a Hettangian–Sinemurian age for the Zhangjiawa Member and a Hettangian age for the Shawan Member.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; blue mudstone

• "dull purplish beds"

Size classes: macrofossils, mesofossils

Collected by M. Bien, C.-C. Young in 1938; reposited in the IVPP

Primary reference: M. N. Bien. 1940. Discovery of Triassic saurischian and primitive mammalian remains at Lufeng, Yunnan. Bulletin of the Geological Society of China 20(3/4):225-234 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49503: authorized by Matthew Carrano, entered by Matthew Carrano on 18.04.2005, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia -
Yunnanosaurus huangi4 Young 1940 saurischian
IVPP V57, V60, V272
 Saurischia - Massospondylidae
"Lufengosaurus huenei" = Lufengosaurus huenei5, "Lufengosaurus magnus n. sp." = Lufengosaurus huenei2, "Gyposaurus sinensis" = Lufengosaurus huenei7
"Lufengosaurus huenei" = Lufengosaurus huenei5 Young 1940 saurischian
IVPP V22, V265, V49, V74, V278
"Lufengosaurus magnus n. sp." = Lufengosaurus huenei2 Young 1940 saurischian
IVPP V82 (holotype), V29, V98, V99, V41, V52, V266, V274
"Gyposaurus sinensis" = Lufengosaurus huenei7 Young 1940 saurischian
IVPP V64, V270, V277
 Saurischia -
Sinosaurus triassicus5 Young 1940 China lizard
IVPP V381, teeth
 Loricata -
? Lukousaurus yini8 Young 1940 crocodilian
IVPP V271
 Rhynchocephalia - Clevosauridae
Dianosaurus petilus n. gen. n. sp.9
Dianosaurus petilus n. gen. n. sp.9 Young 1982 rhynchocephalian
IVPP V.4007, skull
Osteichthyes
 Therapsida - Tritylodontidae
Oligokyphus lufengensis n. sp.1, "Bienotherium yunnanense n. gen. n. sp." = Bienotherium yunnanense3, "Bienotherium elegans" = Bienotherium yunnanense6, Bienotherium minor n. sp.6
Oligokyphus lufengensis n. sp.1 Luo and Sun 1993 therapsid
IVPP V.4008, partial right dentary
"Bienotherium yunnanense n. gen. n. sp." = Bienotherium yunnanense3 Young 1940 therapsid
IVPP V1 (holotype), complete skull, IVPP V3, 4, 9, 67 (in part)
"Bienotherium elegans" = Bienotherium yunnanense6 Young 1940 therapsid
IVPP V5, 7, 8, 67b jaw fragments
Bienotherium minor n. sp.6 Young 1947 therapsid
IVPP V66 (holotype), partial skull