Wessex Formation

File:Cropped version of Geological map of Dorset.png

Exposures of the Wessex and Vectis Formations in southern Dorset, shown in turquoise.

The Wessex Formation is a fossil-rich English geological formation that dates from the Berriasian to Barremian stages of the Early Cretaceous. It forms part of the Wealden Group and underlies the younger Vectis Formation and overlies the Durlston Formation. The dominant lithology of this unit is mudstone with some interbedded sandstones. It is part of the strata of the Wessex Basin, exposed in both the Isle of Purbeck and the Isle of Wight. While the Purbeck sections are largely barren of vertebrate remains, the Isle of Wight sections are well known for producing the richest and most diverse fauna in Early Cretaceous Europe.

Nomenclatural history

Historically, the Wessex Formation has been called alternately the "Variegated Marls and Sandstones", a name used by W. J. Arkell in his 1947 map of the Isle of Purbeck as well as the "Wealden Marls" It was given its current formal name by Daley and Stewart in 1979.

Stratigraphy and lithology

Introduction

File:Wessex basin lithostratigraphy.png

Position of the Wessex Formation within the Wessex Basin succession

The Wessex Formation forms part of the Wealden Group within the Wessex Basin, an area of subsidence since Permo-Triassic times. The basin is located along southern half of the Isle of Wight and Purbeck, extending offshore into the English Channel. The Wealden Group is also exposed significantly in the Weald Basin, which has a separate stratigraphic succession. The Wealden Group is not widely present elsewhere in Britain, as these areas were tectonic highs where little to no sediment deposition was taking place. The formation has limited exposure as it has been deeply buried beneath the subsequent Lower Greensand. Selbourne and Chalk Groups, as well as being very vulnerable to erosion. It has been exposed at the surface due to the creation of anticlinal structures as a distant effect of the formation of the Pyrenees as part of the Alpine Orogeny during the Paleogene.

Cornubian Massif

The major source rocks for the sediments were from the Cornubian Massif to the west, an upland region roughly equivalent to the extent of Cornwall and Devon, with occasional large dropstones transported in tree roots being found in Wealden sediments over 100 kilometres from where they originated.

The Wessex Formation in the Isle of Purbeck

The exposure in of the Wessex Formation in the Isle of Purbeck is largely confined to a thin belt on the south side of the Purbeck Ridge and is best exposed at Swanage, Lulworth Cove and Worbarrow Bay. One notable persistent horizon within the Purbeck sections of the formation is the "Coarse Quartz Grit", an up to 6 metre thick sequence of conglomeratic ironstone, with many beds including numerous centimetre sized subangular to rounded pebbles predominantly of vein derived quartz, hence the name. This horizon is present throughout the Purbeck outcrops of the Wessex Formation. The transition to the Vectis Formation at Swanage is obscured by a landslip.

The Wessex Formation of the Isle of Wight

Wessex Formation mudstones

Wessex Formation mudstones

The Isle of Wight succession has two primary exposures, The major one being the several kilometre long section along the South West coastline around Brighstone Bay, and another smaller exposure on the South East coast near Yaverland. While the formation taken as a whole dates from the Berriasian to the Barremian, only the uppermost part of the formation is exposed on the Isle of Wight. With less than 200 metres of exposed composite stratigraphic thickness, and which dates from Hauterivian to Barremian. A radiometric date has been obtained from the lower part of the succession, estimated to be 127.3 ± 2.7 million years ago. This makes the formation coeval with upper portion of the Weald Clay in the Weald Basin. The primary lithology of the exposed portion of the formation on the Isle of Wight consists of featureless purple-red overbank mudstone, interbedded with sandstones. The environment of deposition was a floodplain within a narrow, east–west oriented valley. The climate at the time of deposition is considered to be semi-arid, based on the presence of pedogenic calcrete nodules within the mudstones. The "Pine Raft" horizon found near the base of the exposed portion of the formation includes calcitized conifer trunks up to metre in diameter and 2–3 metres long.

a dinosaur footprint

Cast of a dinosaur footprint, Wessex Formation

Plant debris beds

File:Wessex Formation PDB.jpg

Close up of L6 plant debris bed, showing charcoalised plant matter suspended in grey mudstone

A notable feature of the formation are the so-called "plant debris beds". These consist of a basal matrix supported conglomerate, grading upwards into grey mudstone with lignitic plant debris, including large trunk fragments of the extinct conifer Pseudofrenelopsis present in the upper portion. These were formed by sheet flood deposits induced by storms that filled pre-existing topographic lows like oxbow lakes and abandoned channels in the floodplain depositional environment. The debris beds do not form a continuous horizon throughout the formation, but are laterally extensive over tens of metres. Many of the wood fragments in the debris beds are cemented together with large nodules of pyrite, suggesting depositional conditions were anoxic. Most fossils within the formation are associated with the debris beds. Vertebrate fossils are mostly disarticulated individual bones and teeth, suggesting a long subaerial exposure prior to burial, though the bones lack abrasion, suggesting that they had not been significantly transported. Partial skeletons also sometimes occur, but are uncommon. Autochthonous siderite nodules are also present, which encase some of the fossils. Plant debris beds also exist within the Swanage section, and one of these horizons has yielded microvertebrate remains.

"Hypsilophodon bed"

File:Hypsilophodon foxii 1.jpg

Skeleton of Hypsilophodon

While most fossils are associated with the plant debris beds, a notable exception is the "Hypsilophodon bed" present near the top of the formation, an up to 1 metre thick bed of silty red-green mudstone, with two separate horizons that have produced almost exclusively over a hundred complete and articulated skeletons of the dinosaur Hypsilophodon, sometimes even with preserved tail tendons. The bed is laterally extensive, being persistent for over a kilometre. A 2017 study suggested that the accumulation of skeletons were a mass mortality event caused by a crevasse splay, while a 2025 study contested this assertion, suggesting that the Hypsilophodon individuals gradually accumulated over time and had been exposed for some time prior to burial. Just above the "Hypsilophodon bed" the red mudstones of the Wessex Formation change to the transitional light coloured sandstone "White rock" and overlying laminated grey mudstones of the Vectis Formation, caused by the changing of environmental conditions from that of a floodplain to coastal lagoon conditions.

Palaeoenvironment

File:Macchia01.jpg

Example of modern macchia vegetation in Corsica, to which the environment of the Wessex Formation has been compared

The palaeoenvironment of the Wessex Formation is considered to have been semi-arid, and has variously been compared to chaparral or macchia Mediterranean shrubland. The dominant trees were conifers of the extinct family Cheirolepidiaceae belonging to the genera Pseudofrenelopsis and Watsoniocladus, both of which have reduced xerophytic leaves adapted to arid conditions. Tree cover is thought to have been thin, and concentrated near waterways. The ground cover is thought to have consisted of xerophytic ferns. Wildfires were common occurrences, as evidenced by preserved charred vegetation.

Fauna

The Wessex Formation likely spans several million years of deposition, and not all taxa are likely to have been contemporaneous.

Invertebrates

Invertebrates are commonly preserved in the Wessex Formation. Freshwater bivalves can be found including unionids such as Margaritifera, Nippononaia, and Unio. These bivalves help reconstruct what the freshwater paleoenvironment may have been like during the formation's deposition. Specimens of Viviparus, a genus of freshwater snail, have also been found. While compression fossils of insects are found in the overlying Vectis Formation, all insect fossils in the Wessex Formation are found as inclusions in amber. Amber can be found present as a rare component in plant debris beds in the Wessex formation both on the Isle of Wight and the Isle of Purbeck, however, the only significant concentration and where all of the inclusions have been found is a lag channel in the L6 plant debris horizon just south-east of Chilton Chine. Only four species from the amber have been formally described, Cretamygale chasei a mygalomorph spider, Dungeyella gavini Libanodiamesa simpsoni, both chironomid midges, as well as Embolemopsis maryannae, a embolemid parasitic wasp. However a table of undescribed taxa has been given, and several images of some of the undescribed taxa have been released from various sources, including multiple chironomids, and a therevid dipteran. Template:Paleobiota-key-compact

Arthropods

Arthropods of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Note	Images
Cypridea	C. wicheri, C. brevirostrata	Dungy Head	Base of the formation		An ostracod belonging to Cypridoidea
Cretamygale	C. chasei	Chilton Chine	L6 plant debris bed	Single specimen	Mygalomorph spider, has been described from a specimen found in amber.	See article
Dungeyella	D. gavini	Chilton Chine	L6 plant debris bed	Multiple specimens	A tiny buchonomyiine chironomid midge	See article
Embolemopsis	E. maryannae	Chilton Chine	L6 plant debris bed	Single specimen	Embolemid parasitic wasp, genus also known from the Zaza Formation. Specimen previously described as a dryinid in a 2015 conference abstract.	File:Wealden Dryinid.jpg
Protopangu	P. valdensis	Chilton Chine	L6 plant debris bed	Single specimen	A panguid parasitic stinging wasp
Libanodiamesa	L. simpsoni	Chilton Chine	L6 plant debris bed	Single specimen	Prodiamesinae chironomid, genus also known from the Lebanese amber
Chironomidae	Indeterminate	Chilton Chine	L6 plant debris bed	44% of all arthropod inclusions	Uncertain how many taxa represented, likely at least two. At least one is a tanypodian with a wingspan twice that of Dungeyella.
Therevidae	Indeterminate	Chilton Chine	L6 plant debris bed	At least one specimen	At least one specimen figured	File:Wealden Therevid.jpg
Diptera	Indeterminate	Chilton Chine	L6 plant debris bed	Multiple specimens	Uncertain how many taxa represented
Hymenoptera	Indeterminate	Chilton Chine	L6 plant debris bed	Multiple specimens	Uncertain how many taxa represented
Blattodea	Indeterminate	Chilton Chine	L6 plant debris bed	Single specimen
Coleoptera	Indeterminate	Chilton Chine	L6 plant debris bed	Single specimen
Curculionoidea?	Indeterminate				Represented by a boring in a gymnospermous seed.

Vertebrates

Dinosaurs

Ornithischians

Ornithischians reported from the Wessex Formation
Genus	Species	Synonyms	Stratigraphic Position	Material	Notes	Images
Brighstoneus	B. simmondsi		L9	Partial skeleton	A hadrosauriform iguanodontian	File:Brightstoneus material.jpg
Comptonatus	C. chasei		Compton Bay	Partial skeleton	An iguanodontian dinosaur	File:Comptonatus chasei.png
Hypsilophodon	H. foxii		Hypsilophodon bed	Many partial skeletons	A hypsolophodontid	File:HypsilophodonBrussels.jpg
Heterodontosauridae?	Indeterminate		Yaverland bed 38	Teeth	Resemble the cheek teeth of the heterodontosaurid Tianyulong.
Iguanodon	I. bernissartensis				A hadrosauroid iguanodontian. Specimens classified as Iguanodon seelyi are referable to this species	File:Iguanodon Skeletal.svg
Mantellisaurus	M. atherfieldensis	Dollodon bampingi, Proplanicoxa?			A hadrosauroid iguanodontian	File:Hul - Mantellisaurus atherfieldensis - 2.jpg
Polacanthus	P. foxii	Polacanthoides ponderosus?		Dorsal vertebrae, dorsosacral vertebrae, sacral vertebrae, caudosacral vertebra, caudal vertebrae, dorsal ribs, ilia, pubes, ischia, femora, tibia, distal end of fibula, astragalus, metatarsals, ungual phalanx, sacral shield and osteoderms.	An ankylosaur	File:Polacanthus foxii transparent.png
Valdosaurus	V. canaliculatus		Recovered from various parts of the formation	Multiple partial skeletons	A dryosaurid	File:Valdosaurus.png
Vectidromeus	V. insularis		Lower part of the formation	Associated elements of the dorsal vertebrae, pelvis, hindlimbs, and tail, from a juvenile specimen	A hypsilophodontid	File:Vectidromeus Skeletal.svg
Vectipelta	V. barretti		L5	Partial skeleton	An ankylosaur. Referred to as the "Spearpoint ankylosaur" prior to its original description. Only distantly related to Polacanthus.	File:Vectipelta UDL.png

Saurischians

Sauropods

Sauropods reported from the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Material	Notes	Images
Chondrosteosaurus	C. gigas			"Several cervical vertebrae."	A Eusauropoda
Eucamerotus	E. foxi			"Dorsal vertebra."	Perhaps a somphospondylan?
Iuticosaurus	I. valdensis			"Several caudal vertebrae."
Oplosaurus	O. armatus			"Tooth."		File:Oplosaurus.png
Ornithopsis	O. eucamerotus			"Ischia and pubis.", regarded as an "undiagnostic titanosauriform of uncertain affinities."
	O. hulkei			One dorsal vertebra.		File:Ornithopsis.jpg
Undescribed Sauropod (Barnes High sauropod)	Indeterminate			"Partial postcranial skeleton, including presacral vertebrae, anterior caudal vertebrae, girdle and limb elements"	Currently in private collection and unavailable to researchers. Known informally as "the Barnes High sauropod". Possibly the same as Eucamerotus
"Angloposeidon" (informal)	Indeterminate		L1	One cervical vertebra and possible associated centrum	Represents a large animal 20 metres or greater in length. Known informally as "Angloposeidon". Perhaps a somphospondylan?	File:Angloposeidon.jpg
Rebbachisauridae	Indeterminate		Scapula found approximately around L11	Scapula, radius and ulna, several cervical sacral and caudal vertebrae and isolated teeth from multiple individuals	Taxon has close affinities with Demandasaurus and Nigersaurus
Titanosauria	Indeterminate			Two isolated large middle caudal vertebra, one isolated large cervical vertebra, BMNH R5333, two articulated caudal vertebrae with an articulated fragment of a third

Theropods

Theropods reported from the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Material	Notes	Images
Avialae	Indeterminate			Isolated teeth	Possibly an Enantiornithe and a Hesperornithid present
Aristosuchus	A. pusillus			"Sacrum and pubis."	A compsognathid	File:Aristosuchus pusillus.jpg
Calamosaurus	C. foxi			"Vertebrae."	A compsognathid	File:Calamosaurus.jpg
Calamospondylus	C. oweni			"Vertebrae."	A possible oviraptorosaur
Ceratosuchops	C. inferodios			Partial skull material	A spinosaurid, formerly considered remains of Baryonyx.	File:Ceratosuchops holotype.webp
Eotyrannus	E. lengi	Chilton Chine		"Partial skull and skeleton."	A tyrannosauroid	File:Skeletal reconstruction of Eotyrannus.png
Neovenator	N. salerii	Chilton		Cranial and postcranial remains of at least four individuals.	A carcharodontosaurian	File:Neovenator.png
Ornithodesmus	O. cluniculus				A species of dromaeosaurid, once misidentified as a pterosaur	File:Ornithodesmus cluniculus.jpg
Richardoestesia?	Indeterminate			Teeth	Dubious, uncertain referral on the genus level
Riparovenator	R. milnerae			Partial skull and referred caudal material	A spinosaurid, formerly considered remains of Baryonyx.	File:Riparovenator holotype.webp
Tetanurae	Indeterminate	Chilton Chine		Partial pubis and femur	Distinct from Neovenator and Baryonyx. Currently in private collection.
Thecocoelurus	T. daviesi			"Cervical vertebrae."	A theropod of uncertain classification, possibly an ornithomimosaur (this assignment has been questioned by both Mortimer and Naish).	File:Thecocoelurus.png
Undescribed coelurosaur	Indeterminate			Partial associated skeleton	Apparently small. In private collection and undescribed. Referred to as "That Which Cannot Be Named" by Darren Naish Has been suggested to be a tyrannosauroid.
Coelurosauria (Calamospondylus?)	Indeterminate (or possibly C. oweni)			Tibia	Previously referred to Hypsilophodon, Aristosuchus, Calamosaurus, Ornithomimosauria indet. and Coelurosauria indet.	File:Calamospondylus oweni tibia.png
Velociraptorinae	Indeterminate			Isolated teeth	May belong to a proceratosaurid, or alternatively they may belong to Vectiraptor.
Vectiraptor	V. greeni			Dorsal vertebrae and sacral vertebrae	A large bodied Eudromaeosaur	File:Vectiraptor greeni dorsal vertebra by Nick Longrich.jpg
Yaverlandia	Y. bitholus	Yaverland		Known from a "partial skull roof comprising both frontals and parts of the right postorbital and left orbitosphenoid". A second specimen is known but has not been formally published.	A maniraptoran of uncertain classification, originally identified as an ornithischian.	File:Yaverlandia skull replica.png

Fish

Cartilaginous fishes

Cartilaginous fishes of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Note	Images
Egertonodus	H. basanus				Hybodontid hybodont shark
Hybodus	Indeterminate 1		Yaverland bed 38, L9
	Indeterminate 2		Yaverland bed 38, L9
	Indeterminate 3		Yaverland bed 38, L9
Lonchidion	L. breve		Yaverland bed 38		Lonchidiid hybodont shark
	L. striatum		Yaverland bed 38, L9	51.43% of total chondrichthyan taxa in L9
	Indeterminate 1		Yaverland bed 38, L9
	Indeterminate 2		Yaverland bed 38, L9	35.86% of total chondrichthyan taxa in Yaverland bed 38
	Indeterminate 3		Yaverland bed 38, L9
Hylaeobatis	H. problematica
Palaeoscyllium	Indeterminate				Catshark
Parvodus	P. heterodon				Lonchidiid hybodont shark
Protospinax	Indeterminate				Shark
Vectiselachos	V. ornatus				Lonchidiid hybodont shark

Ray-finned fish

Ray-finned fishes of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Notes	Images
Belonostomus	Indeterminate			Aspidorhynchiformes	Known from isolated teeth	File:Belonostomus tenuirostris Ob Jura Painten D Ch2.jpg Full skeleton of the related Belonostomus tenuirostris
Caturus	Indeterminate			Amiiform fish		File:Caturus NT.jpg
Coelodus	Indeterminate			Pycnodontid fish
Coccolepis	Indeterminate			Coccolepidid fish
Lepidotes	Indeterminate
Ocloedus	Indeterminate
Pachythrissops	Indeterminate
Pycnodontiformes	Indeterminate
Scheenstia	Indeterminate			Lepidotid fish		File:Scheenstia maximus.jpg

Mammals

Mammals of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Material	Notes	Images
Eobaatar	E. clemensi	Multiple debris beds	L9, Yaverland bed 38 and CL3	Teeth	Eobaatarid multituberculate
?Gobiconodon	Indeterminate	Yaverland	Yaverland bed 38	A lower right premolariform	Gobiconodontid	File:GobiconodonDB15.jpg
Loxaulax	?L. valdensis			Teeth	Eobaatarid multituberculate
Yaverlestes	Y. gassoni	Multiple debris beds	Mandible from Yaverland bed 38, isolated teeth from L2, L9 and L14	Mandible Fragment and isolated teeth	Spalacotheriid	File:Yaverlestes.png
Dryolestidae	Indeterminate	Multiple debris beds	Yaverland bed 38 and L9	A lower right molar (NHMUK.M45558) C, an upper left molar (NHMUK.M45564)., a tentatively referred lower left or upper right premolar (NHMUK.M45484)
Eutriconodonta	Indeterminate	Yaverland	Yaverland bed 38	Lower left molariform
Zatheria	Indeterminate			Premolars	Eutheria?

Lissamphibians

Amphibians of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Notes	Images
Wesserpeton	W.evansae		L2 and Yaverland 38		Albanerpetontid amphibian
Anura	Indeterminate	Multiple	1: Yaverland 38 2: L2 and Yaverland 38 3: L2 and Yaverland 38 4: Yaverland 38 5: Yaverland 38	At least 5 distinct taxa distinguished by characters in their ilium
Urodela	Indeterminate	Multiple	1: L2, L14 and Yaverland 33 and 38 2: L9 and Yaverland 38 3: unnamed bed in Compton bay and Yaverland 38	At least 3 distinct taxa distinguished by their atlas vertebrae

Reptiles

Squamates

Squamates of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Notes	Images
Meyasaurus	Indeterminate	Yaverland	Yaverland bed 38	Teeth and a partial lower jaw	Genus also known from Spain
Anguimorpha	indeterminate	Multiple plant debris beds	1st taxon L14 and L2, 2nd L2 and Yaverland bed 38, 3rd Yaverland bed 38	At least 3 distinct taxa represented by isolated teeth, maxilla and lower jaw fragments, alongside a possible fourth taxon.
Scincomorpha	indeterminate	Multiple plant debris beds	1: L14 and Yaverland 38 2: Yaverland 38, 3: L2 and Yaverland 38 4,5: Yaverland bed 38 6:L2, L14 and Yaverland 38 7,8,9: Yaverland 38 10: L2, L14 and Yaverland 38	At least 10 distinct taxa represented by isolated teeth, maxilla and lower jaw fragments, some of which are paramacellodids based on the common occurrence of osteoderms typical of this clade.

Neosuchians

Neosuchians of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Notes	Images
Anteophthalmosuchus	A. hooleyi		Disputed, either uppermost Wessex or lowermost Vectis			File:Anteophthalmosuchus.png
	A. epikrator	Hanover Point		Mostly complete skull and partial dentaries and associated postcranial material		File:Goniopholis simus 3.jpg
Bernissartia	Indeterminate			40 Isolated teeth		File:Bernissartia BW.jpg
Hulkepholis	H. willetti
Koumpiodontosuchus	K. aprosdokiti					File:Koumpiodontosuchus.jpg
Theriosuchus	Indeterminate
Vectisuchus	V. leptognathus	Barnes High	Just below base of Vectis formation	"Partial semi-articulated skeleton"

Plesiosaurs

Plesiosaurs of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Abundance	Notes	Images
Elasmosauridae	Indeterminate	Compton Bay		Vertebra
Plesiosauroidea	Indeterminate	Tie pits, atherfield		Propodial	Leptocleididae?

Turtles

Turtles of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Material	Notes	Images
Helochelydra	H. nopcsai			Shell and skull material	Helochelydrid	File:Helochelydra skull.png
Brodiechelys	B. brodiei			Shell fragments	Xinjiangchelyid, previously known by the synonyms Plesiochelys brodiei Lydekker, 1889; Plesiochelys valdensis Lydekker, 1889 and Plesiochelys vectensis Hooley, 1900
Eodortoka	E. cf. morellana			Partial shell with associated vertebrae and limb bones	A dortokid panpleurodiran turtle.

Pterosaurs

Pterosaurs of the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Material	Notes	Images
Caulkicephalus	C. trimicrodon			Skull and rostrum fragments	An ornithocheirid	File:Caulkicepahlus skull recon.png
Ctenochasmatidae	Indeterminate			Tooth, potentially a gnathosaurine
Istiodactylus	I. latidens			Partial skeleton and skull, and referred mandible fragment	An istiodactylid	File:Istiodactylus.tif
Istiodactylidae	Indeterminate		Found throughout the sub basin	Teeth	Two other species, distinct from I.latidens
Neoazhdarchia	Indeterminate			Humerus
Ornithocheiridae	Indeterminate			"partial distal left metacarpal IV"	Estimated wingspan of 5.6 metres
Uktenadactylus	U. rodriguesae			Rostrum fragment	An ornithocheirid, distinct from Coloborhynchus
Wightia	W. declivirotris			Rostrum fragment	A tapejarid

Flora

Spermatophytes

Spermatophytes reported from the Wessex Formation
Family	Genus	Species	Stratigraphic Position	Material	Notes	Images
Araucariaceae	Agathoxylon?	Indeterminate		Wood	Reported as "Dadoxylon" Considered a dubious referral
Araucariaceae	Brachyphyllum	B. obesum		Leaves
Cheirolepidiaceae	Pseudofrenelopsis	P. parceramosa		Leaves and abundant, and occasional segments of the trunk
Cheirolepidiaceae	Watsoniocladus	W. valdensis		Leaves
Cupressaceae	Sphenolepis			Leaves	"taxodiaceous"
Pinaceae	Pityites	P. solmsii

Pteridophytes

Pteridophytes reported from the Wessex Formation
Genus	Species	Location	Stratigraphic Position	Material	Notes	Images
Polypodiopsida	Indeterminate
Tempskya	Indeterminate				May actually originate from the underlying Purbeck Group.	File:Tempskya sp. - MUSE.jpg
Weichselia	W. reticulata			Multiple specimens

See also

• List of fossil sites
• List of stratigraphic units with dinosaur body fossils
• Dinosaurs of the Isle of Wight

References

• Batten, D. J. (ed.) 2011. English Wealden Fossils. The Palaeontological Association, London.

External links

• Discovery of shark teeth