Bed L9, northwest of Grange Chine (Cretaceous of the United Kingdom)

Where: England, United Kingdom (50.6° N, 1.4° W: paleocoordinates 40.9° N, 9.4° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Wessex Formation (Wealden Group), Barremian (129.4 - 125.0 Ma)

• The entire Wessex Formation exposed on the Isle of Wight is Barremian in age

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; muddy conglomerate

• Wessex Formation was "deposited in a meander-belt river system with a dominant flow direction from west to east"
• Bed L9 is a "plant debris bed". "The lower part of most plant debris beds comprises a poorly sorted, matrix-supported conglomerate. The upper part of most consists of structureless mudstone, which usually grades up into colour-mottled but predominantly red and purple floodplain mudstones." (Sweetman & Insole 2010 PPP 292:409)

Size class: mesofossils

Collected by Sweetman

Collection methods: bulk, sieve,

• IWCMS: Isle of Wight County Museum Service

Primary reference: S. C. Sweetman and D. M. Martill. 2010. Pterosaurs of the Wessex Formation (Earl Cretaceous, Barremian) of the Isle of Wight, southern England: a review with new data. Journal of Iberian Geology 36(2):225-242 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101092: authorized by Richard Butler, entered by Richard Butler on 17.12.2010, edited by Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Pterosauria - Istiodactylidae
Istiodactylidae indet.
Istiodactylidae indet. Howse et al. 2001 pterosaur
IWCMS.2009.477, tooth
 Pterosauria -
Istiodactylus latidens
Istiodactylus latidens Seeley 1901 pterosaur
IWCMS.2002.26, tooth
Mammalia
 Theriamorpha - Spalacotheriidae
Yaverlestes gassoni1
Yaverlestes gassoni1 Sweetman 2008 mammal
BMNH M 45481, an upper left molariform
 Multituberculata - Eobaataridae
Eobaatar clemensi n. sp.2
Eobaatar clemensi n. sp.2 Sweetman 2009 multituberculate
BMNH M 45482, holotype left m1
1Sweetman 2008; 2Sweetman 2009