Daohugou (IVPP collection) (Jurassic of China)

Where: Nei Mongol, China (41.3° N, 119.2° E: paleocoordinates 43.0° N, 123.1° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Tiaojishan Formation, Early/Lower Callovian (164.7 - 161.2 Ma)

• Zhou et al (2013): "The Daohugou site in the Tiaojishan Formation of Inner Mongolia, China; the locality was directly dated to be 165–164 million years (Myr) old".

•Older information: "possible dates [range] from Middle Jurassic to Early Cretaceous. However, published radioisotopic [both 40Ar/39Ar and zircon U-Pb] dating results span... 152 to 168 Myr" = Bathonian to Kimmeridgian (Zhang et al. 2008). Also referred to as Haifanggou Formation

•"Several recent isotope datings, using both 40 Ar/39Ar and SHRIMP U-Pb methods, have indicated that the age of the (underlying) ignimbrite is between the late Middle Jurassic and early Late Jurassic, or 159-164 Ma. Therefore, the Daohugou Bed cannot be older than this age, and is not comparable to the Middle Jurassic Jiulongshan Formation" (Wang et al. 2005). Unit is older than overlying Yixian Formation. Age is therefore constrained to Callovian-Barremian

• formation-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified shale and tuff

• "tuffaceous shale"; "freshwater shales interbedded with tuffs"

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression, soft parts, original phosphate

Reposited in the IVPP

Collection methods: bulk, quarrying, mechanical,

• IVPP and NIGP collections

Primary reference: C.-F. Zhou, S. Wu, T. Martin and Z.-X. Luo. 2013. A Jurassic mammaliaform and the earliest mammalian evolutionary adaptations. Nature 500:163-167 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27891: authorized by Matthew Carrano, entered by Matthew Carrano on 15.01.2003, edited by Kaitlin Maguire, Mark Uhen, Matthew Clapham, John Alroy, Richard Butler, Roger Benson, Philip Mannion and Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet.17 Haeckel 1866
Branchiopoda
 Diplostraca - Euestheriidae
Amphibia
 Caudata - Urodela
Chunerpeton tianyiensis n. gen. n. sp.7, Jeholotriton paradoxus n. gen. n. sp.14, Liaoxitriton daohugouensis n. gen. n. sp.13
Chunerpeton tianyiensis n. gen. n. sp.7 Gao and Shubin 2003 salamander
Jeholotriton paradoxus n. gen. n. sp.14 Wang 2000 salamander
probably includes "Caudata indet." of Zhang et al. 2002
Liaoxitriton daohugouensis n. gen. n. sp.13 Wang 2004 salamander
Mammalia
 Shuotheridia - Shuotheriidae
Pseudotribos robustus n. gen. n. sp.10
Pseudotribos robustus n. gen. n. sp.10 Luo et al. 2007 mammal
CAGS 040811A, B
 Allotheria - Kermackodontidae
Megaconus mammaliaformis n. gen. n. sp.
Megaconus mammaliaformis n. gen. n. sp. Zhou et al. 2013 mammal
Paleontological Museum of Liaoning at Shenyang Normal University (PMOL) AM00007A and AM00007B - holotype (in situ dentition, mandibles and associated mandibular middle ear, and most of the postcranial skeleton)
 Marsupialia - Herpetotheriidae
Volaticotherium antiquus n. gen. n. sp.11
Volaticotherium antiquus n. gen. n. sp.11 Meng et al. 2006 marsupial
Osteichthyes
 Docodonta -
Castorocauda lutrasimilis n. gen. n. sp.8, Agilodocodon scansorius n. gen. n. sp.12
Castorocauda lutrasimilis n. gen. n. sp.8 Ji et al. 2006 dodocont
Agilodocodon scansorius n. gen. n. sp.12 Meng et al. 2015 dodocont
Beijing Museum of Natural History PM001138A, and PM001138B
Reptilia
 Squamata -
Lacertilia indet.5 lizard
IVPP V14386 (juvenile skeleton with skin/scales)
 Theropoda -
Pedopenna daohugouensis n. gen. n. sp.16, Epidexipteryx hui n. gen. n. sp.18, Epidendrosaurus ningchengensis n. gen. n. sp.17
Pedopenna daohugouensis n. gen. n. sp.16 Xu and Zhang 2005 maniraptoran
IVPP V12721
Epidexipteryx hui n. gen. n. sp.18 Zhang et al. 2008 maniraptoran
Epidendrosaurus ningchengensis n. gen. n. sp.17 Zhang et al. 2002 maniraptoran
 Pterosauria -
Pterodactyloidea indet.9 Plieninger 1901 pterosaur
Daohugoupterus delicatus n. gen. n. sp.2 Cheng et al. 2015 pterosaur
IVPP V12537, partial skeleton with an almost complete skull
 Pterosauria - Rhamphorhynchidae
Pterorhynchus wellnhoferi n. gen. n. sp.3
Pterorhynchus wellnhoferi n. gen. n. sp.3 Czerkas and Ji 2002 pterosaur
CASS02-IG-gausa-2/DM 608, nearly complete skeleton
 Pterosauria - Anurognathidae
Jeholopterus ningchengensis n. gen. n. sp.15
Jeholopterus ningchengensis n. gen. n. sp.15 Wang et al. 2002 pterosaur
IVPP V 12705 (holotype), complete articulated skeleton
Daohugouthallus ciliiferus
  -
Daohugouthallus ciliiferus6 Wang et al. 2010
IVPP B0474, V0476