Walton-on-the-Naze Division A2 (NMS) (Eocene of the United Kingdom)

Where: England, United Kingdom (51.9° N, 1.3° E: paleocoordinates 47.3° N, 1.2° W)

• coordinate based on nearby landmark

When: Walton Member (London Clay Formation), Ypresian (56.0 - 47.8 Ma)

• Walton Member of the London Clay Formation (previously Division A2); said to be "lower Ypresian"

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by M. Daniels in 1986

• National Museums Scotland, Edinburgh

Primary reference: G. Mayr and A. C. Kitchener. 2022. New fossils from the London Clay show that the Eocene Masillaraptoridae are stem group representatives of falcons (Aves, Falconiformes). Journal of Vertebrate Paleontology e2083515 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 227361: authorized by Mark Uhen, entered by Mark Uhen on 07.10.2022, edited by Philip Mannion and Katrin Eckardt

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Galliformes - Quercymegapodiidae
cf. Quercymegapodiidae indet.6 Mourer-Chauviré 1992 fowl
 Galliformes - Waltonortygidae
Waltonortyx bumbanipodiides n. gen. n. sp.6 Mayr and Kitchener 2024 fowl
NMS.Z.2021.40.175
 Galliformes - Gallinuloididae
? Paraortygoides argillae n. sp.6 Mayr and Kitchener 2024 fowl
NMS.Z.2021.40.174
Aves
  - Psittacopedidae
Psittacomimus eos n. gen. n. sp.3
Psittacomimus eos n. gen. n. sp.3 Mayr and Kitchener 2022 bird
NMS.Z.2021.40.38 - holotype
 Australaves - Morsoravidae
Sororavis solitarius n. gen. n. sp.5
Sororavis solitarius n. gen. n. sp.5 Mayr and Kitchener 2023 bird
NMS.Z.2021.40.75 - holotype
 Pelecaniformes - Threskiornithidae
Rhynchaeites sp.4 Wittich 1898 ibis
Rhynchaeites litoralis n. sp.4 Mayr and Kitchener 2023 ibis
 Anseriformes -
Danielsavis nazensis n. gen. n. sp.1
Danielsavis nazensis n. gen. n. sp.1 Houde et al. 2023 waterfowl
NMS.Z.2021.40.1 - holotype
 Trogoniformes - Trogonidae
Eotrogon stenorhynchus n. gen. n. sp.2
Eotrogon stenorhynchus n. gen. n. sp.2 Mayr et al. 2023 trogon
NMS.Z.2021.40.83 - holotype
 Falconiformes - Masillaraptoridae
Danielsraptor phorusrhacoides n. gen. n. sp. Mayr and Kitchener 2022 raptor
NMS.Z.2021.40.12, holotype