Xiao-tai-zi, La-ma-dong, Jianchang (Cretaceous of China)

Also known as Xiaotaizi, Lamadong, Xidian, Lamatong

Where: Liaoning, China (40.7° N, 119.7° E: paleocoordinates 43.8° N, 120.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Jiufotang Formation (Jehol Group), Aptian (125.0 - 113.0 Ma)

• Xidian Bed

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; siltstone

• a skeleton preserved on one slab of laminated siltstone

Size class: macrofossils

Reposited in the IVPP

Primary reference: J. Meng, Y. Wang, and C. Li. 2011. Transitional mammalian middle ear from a new Cretaceous Jehol eutriconodont. Nature 472:181-185 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 129475: authorized by Roger Benson, entered by Roger Benson on 23.06.2012, edited by Matthew Carrano, Jonathan Tennant, Emma Dunne and Graham Slater

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Actinopteri
 Leptolepidiformes - Leptolepididae
Lycoptera indet.2
Lycoptera indet.2 Müller 1847
IVPP V17078, near-complete sub-adult skeleton
Reptilia
 Squamata -
Yabeinosaurus robustus1
Yabeinosaurus robustus1 Dong et al. 2017 squamates
IVPP V 16361 and 16362 (two complete skeletons)
 Testudines - Sinemydidae
Liaochelys jianchangensis n. gen. n. sp.4
Liaochelys jianchangensis n. gen. n. sp.4 Zhou 2010 turtle
PMOL-AR00160 - holotype (nearly complete skeleton); referred specimen: PMOL-AR00140 (disarticulated skeleton)
 Testudines - Trionychidae
Perochelys lamadongensis n. gen. n. sp.4
Perochelys lamadongensis n. gen. n. sp.4 Li et al. 2015 softshell turtle
IVPP V 18048 - holotype (a nearly complete skeleton)
Aves
 Pygostylia - Jinguofortisidae
Cratonavis zhui n. gen. n. sp.6
Cratonavis zhui n. gen. n. sp.6 Li et al. 2023 bird
Reptilia
 Theropoda -
Piscivoravis lii n. gen. n. sp.8, Brevirostruavis macrohyoideus n. gen. n. sp.5, Fortunguavis xiaotaizicus n. gen. n. sp.7
Piscivoravis lii n. gen. n. sp.8 Zhou et al. 2013 avialan
IVPP V17078
Brevirostruavis macrohyoideus n. gen. n. sp.5 Li et al. 2021 avialan
Holotype: V13266 is a nearly complete skeleton preserved on a single slab (missing part of the humerus and the pelvic elements), with associated traces of preserved integument around the body
Fortunguavis xiaotaizicus n. gen. n. sp.7 Wang et al. 2014 avialan
A nearly complete and articulated skeleton with feathers preserved on a slab, IVPP V18631
 Pterosauria - Ctenochasmatidae
Forfexopterus jeholensis n. gen. n. sp.3
Forfexopterus jeholensis n. gen. n. sp.3 Jiang et al. 2016 ctenochasmatid
HM V20
Mammalia
 Eutriconodonta -
Liaoconodon hui n. gen. n. sp.
Liaoconodon hui n. gen. n. sp. Meng et al. 2011 mammal
IVPP V16051, a skeleton preserved on one slab of laminated siltstone
1Dong et al. 2017; 2Evans and Wang 2012; 3Jiang et al. 2016; 4Li et al. 2015; 5Li et al. 2021; 6Li et al. 2023; 7Wang et al. 2014; 8Zhou et al. 2013