Maoming Basin: Lutetian - Bartonian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Angiospermae - Fabales - Fabaceae
Podocarpium eocenicum seed/fruit Xu and Jin 2015
Xu et al. 2015
MMJ1–002, MMJ1–003a, b
Mammalia - Anthracotheriidae
Lunania cf. youngi
SYSU-M-1
    = Anthracokeryx naduongensis Ducrocq et al. 2015
Averianov et al. 2019
SYSU-M-1 and 6
Reptilia - Testudines - Geoemydidae
Isometremys lacuna n. gen., n. sp. Chow and Yeh 1962
Chow and Yeh 1962
Holotype IVPP V 1049, paratype IVPP V 1003
Guangdongemys pingi n. gen., n. sp. Claude et al. 2012
Reptilia - Testudines
Anosteira maomingensis n. sp. Chow and Liu 1955
18 individuals
IVPP V 809 (holotype); Referred material: IVPP collection: IVPP V816. New material: 4 shells: IVPP V15005, IVPP V15005-1, IVPP V15005-2, IVPP V15005-3; an isolated nuchal: IVPP V15005-4; a lower jaw: IVPP V15005-5. BMNH collection: 13 shells: carapace with associated incomplete plastron: Ph000259, Ph000282, Ph000290; carapace without plastron: Ph000261, Ph000271, Ph000274, Ph000276, Ph000278, Ph000280, Ph000283, Ph000284, Ph000285, Ph000286.
Reptilia - Testudines - Trionychidae
Aspideretes impressus Yeh 1963
recombined as Striatochelys impressa
Reptilia
Tomistoma petrolica Yeh 1958
recombined as Maomingosuchus petrolica
DM-F0001, DM-F0003, DM-F0005, DM-F0006, DM-F0008, DM-F0009, DM-F0014, DM-F0016-0018, NMNS005146-F041793, NMNS005769-F044025, NMNS002198-F027585, NMNS002060-F027511, PFMM-F0011, NMNS006379-F049602, NMNS005769-F044026 and PFMM-F0019
Actinopteri - Cypriniformes - Cyprinidae
Cyprinus maomingensis
see common names

Geography
Country:China State/province:Guangdong County:Maoming
Coordinates: 21.7° North, 110.9° East (view map)
Paleocoordinates:22.4° North, 109.2° East
Basis of coordinate:based on nearby landmark
Geographic resolution:basin
Time
Period:Paleogene Epoch:Eocene
Key time interval:Lutetian - Bartonian
Age range of interval:47.80000 - 38.00000 m.y. ago
Stratigraphy
Formation:Youganwo
Stratigraphic resolution:formation
Stratigraphy comments: Also known as Youkanwo Formation

Aleksandrova et al. 2015: Palynomorph assemblages from Youganwo Formation suggest a Lutetian–Bartonian age, deposited in an intermittently swamped lacustrine–fluvial plain, which gave way to a freshwater lake.
Lithology and environment
Primary lithology:brown "shale"
Includes fossils?Y
Lithology description: dark brown oil shales
Environment:lacustrine - large
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float),survey of museum collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:167230
Authorizer:P. Holroyd, B. Allen, P. Mannion Enterer:P. Holroyd, P. Mannion, B. Allen
Modifier:G. Varnham Research group:vertebrate
Created:2015-03-08 21:37:50 Last modified:2022-02-15 03:05:05
Access level:the public Released:2015-03-08 21:37:50
Creative Commons license:CC BY
Reference information

Primary reference:

54564. J. Claude, J.-Y. Zhang, J.-J. Li, J.-Y. Mo, X.-W. Kuang and H. Tong. 2012. Geoemydid turtles from the Late Eocene Maoming basin, southern China. Bulletin de la Societe Geologique de France 183(6):641-651 [P. Holroyd/P. Holroyd]

Secondary references:

79843 G. M. Aleksandrova, T. M. Kodrul, and J. H. Jin. 2015. Palynological and Paleobotanical Investigations of Paleogene Sections in the Maoming Basin, South China. Stratigraphy and Geological Correlation 23(3):300-325 [P. Mannion/G. Varnham/G. Varnham]
65787 A. Averianov, E. Obraztsova, I. Danilov and J. Jin. 2019. Anthracotheriid artiodactyl Anthracokeryx and an upper Eocene age for the Youganwo Formation of southern China. Historical Biology 31:1115-1122 [P. Mannion/P. Mannion/P. Mannion]
63473 M. Chow and H.-K. Yeh. 1962. A New Emydid from the Eocene of Maoming, Kwangtung. Vertebrata PalAsiatica 6(3):225-229 [P. Mannion/P. Mannion/P. Mannion]
62860 H.-Y. Shan, X.-C. Wu, Y.-N. Cheng and T. Sato. 2017. Maomingosuchus petrolica, a restudy of ‘Tomistoma’ petrolica Yeh, 1958. Palaeoworld 26:672-690 [P. Mannion/P. Mannion/P. Holroyd]
80800 Q. Q. Xu, J. Qiu, Z. K. Zhou and J. H. Jin. 2015. Eocene Podocarpium (Leguminosae) from South China and its biogeographic implications. Frontiers in Plant Science 6:938 [B. Allen/B. Allen]