Sihetun, lower Yixian (general) (Cretaceous to of China)

Also known as Beipiao

Where: Liaoning, China (41.6° N, 120.9° E: paleocoordinates 44.3° N, 122.7° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Yixian Formation (Jehol Group), Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)

• lower part of formation

•Dong et al (2013): "Sihetun Locality; Jianshangou Bed, Yixian Formation, Barremian/Aptian (125±1 Ma)"

• member-level stratigraphic resolution

Environment/lithology: lacustrine; lithified, black, gray shale and green siltstone

Size class: macrofossils

Preservation: mold/impression, trace

Collected by Liang et al. in 1990, 1997-1998; reposited in the IVPP

Collection methods: quarrying, surface (float), surface (in situ),

• Includes 1 Psittacosaurus sp. in Mr. Liang Shikuan's collections. Geological Museum of China (GMV) collection.

Primary reference: X. Xu, X.-L. Wang, and X.-C. Wu. 1999. A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China. Nature 401:262-266 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52888: authorized by Matthew Carrano, entered by Kaitlin Maguire on 25.08.2005, edited by Matthew Carrano, Roger Benson, Philip Mannion, Bethany Allen and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

• "This discovery documents the first discoglossid fossil from China, the earliest record of the group in Asia, and the only second Mesozoic discoglossid known from fully articulated material in the world."
Osteichthyes
 Salientia -
"Liaobatrachus grabaui n. gen. n. sp." = Liaobatrachus grabaui4, "Callobatrachus sanyanensis n. gen. n. sp." = Liaobatrachus grabaui8, Liaobatrachus beipiaoensis1
"Liaobatrachus grabaui n. gen. n. sp." = Liaobatrachus grabaui4 Ji and Ji 1998 frog
GMV 2126 - holotype (incomplete skeleton in dorsal view, with vertebral column and pelvis articulated but skull and limbs disarticulated and displaced); referred specimens: MV 77 (a nearly complete skeleton with a slightly displaced pelvis) and CYH 004(a nearly complete skeleton)
"Callobatrachus sanyanensis n. gen. n. sp." = Liaobatrachus grabaui8 Ji and Ji 1998 frog
IVPP V11525
Liaobatrachus beipiaoensis1 Gao and Wang 2001 frog
IVPP V12717 (a nearly complete skeleton with part of the vertebral column displaced and the limbs not preserved)
Reptilia
 Testudines - Sinemydidae
Ordosemys liaoxiensis7 Ji 1995 turtle
 Avetheropoda - Dromaeosauridae
Sinornithosaurus millenii n. gen. n. sp. Xu et al. 1999 coelurosaur
IVPP V.12811
Aves
 Pygostylia - Confuciusornithidae
Confuciusornis sp.13 Hou et al. 1995 bird
Reptilia
 Avetheropoda -
Beipiaosaurus inexpectus n. sp.11 Xu et al. 1999 coelurosaur
IVPP V11559 (holotype), partial right dentary with dentition, right postorbital, right parietal, right nasal?, right prootic, a few cervicals and dorsals, an incomplete caudal, incomplete ribs, partial scapula, coracoids and furcula, partial humerus, radius and ulna, nearly complete hands, partial ilium, pubis and ischium, complete right femur, right tibia and right fibula, incomplete left femur, tibia and fibula, incomplete right foot
Shenzhousaurus orientalis n. gen. n. sp.6 Ji et al. 2003 ornithomimosaur
NGMC 97-4-002
 Saurischia - Eubrontidae
"Grallator parallelus" = Eubrontes cursorius10
"Grallator parallelus" = Eubrontes cursorius10 Hitchcock 1858 theropod
3 prints in 1 trackway; NGMC V2115
 Neornithischia -
Psittacosaurus sp.12 Osborn 1923 ornithischian
 Pterosauria -
Gegepterus changi n. gen. n. sp.9
Gegepterus changi n. gen. n. sp.9 Wang et al. 2007 pterosaur
IVPP V11981, partial skeleton including skull, vertebrae, coracoid and parts of the wing, pelvis and hindlimb; IVPP V11972
 Squamata -
Dalinghosaurus longidigitus n. gen. n. sp.3 Ji 1998 squamates
including GMV 2127 (holotype) and IVPP V14295 (posterior half of postcranial skeleton) from Jianshangou Bed (124-125 Ma)
Yabeinosaurus robustus n. sp.2 Dong et al. 2017 squamates
IVPP V13285 (skull and left forelimb) - from Jianshangou Bed (124-125 Ma)
Mammalia
 Eutriconodonta -
Jeholodens jenkinsi n. gen. n. sp.5
Jeholodens jenkinsi n. gen. n. sp.5 Ji et al. 1999 mammal
GMV 2139 a,b (holotype skeleton)