Guizhou, Zigui (Bed 2) (Jurassic of China)

Where: Hubei, China (31.0° N, 110.6° E: paleocoordinates 33.1° N, 114.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Member (Xietan Formation), Middle Jurassic (174.7 - 161.5 Ma)

• from Bed 2, near top of Lower Member

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; calcareous mudstone and lenticular, calcareous siltstone

• from a calcareous silstone lens, within the predominately calcareous silstone and calcareous mudstone of the top of the Lower Member

Size class: mesofossils

Collected by L. Chen & Q. Shang in 2005; reposited in the IVPP

Collection methods: bulk, sieve,

Primary reference: Q. Shang, G. Cuny, and L. Chen. 2008. Early Middle Jurassic vertebrate microremains from the Three Gorges area, southern China. Historical Biology 20(2):87-99 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 85493: authorized by Matthew Carrano, entered by Matthew Carrano on 02.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Loricata -
Crocodyliformes indet. Hay 1930 crocodilian
IVPP V15150
Gnathostomata
  -
Actinopterygii indet. ray-finned fish
IVPP V15149.1, V15149.34-.52
Chondrichthyes
 Hybodontiformes - Polyacrodontidae
Polyacrodus sp., "Hybodus aff. parvidens" = Polyacrodus parvidens
Polyacrodus sp. Jaekel 1889 elasmobranch
IVPP V15141, V15141.1-.7
"Hybodus aff. parvidens" = Polyacrodus parvidens Woodward 1916 elasmobranch
IVPP V15133
 Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1834 elasmobranch
IVPP V15134, V15134.1, V15135, V15135.1-.89
 Hybodontiformes - Lonchidiidae
cf. Parvodus sp. Rees and Underwood 2002 elasmobranch
IVPP V15138, V15139
 Hybodontiformes -
Hubeiodus ziguiensis n. gen. n. sp.
Hubeiodus ziguiensis n. gen. n. sp. Shang et al. 2008 Hubei tooth
IVPP V15142, V15144, V15145, V15148, V15148.1-.10