Forest Marble Formation

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Forest Marble Formation
Stratigraphic range: Bathonian 168โ€“164.7 Ma
Error creating thumbnail:
Forest Marble Formation exposed in Kirtlington Quarry, Oxfordshire
TypeGeological formation
Unit ofGreat Oolite Group
UnderliesCornbrash Formation
OverliesWhite Limestone Formation, Athelstan Oolite Formation, Chalfield Oolite Formation, Corsham Limestone Formation, Frome Clay
ThicknessUp to 5m thick in Buckinghamshire, 10 to 30m in Oxfordshire and Gloucestershire, 30 to about 50m in north Dorset, 30 to 75m in south Dorset
Lithology
PrimaryMudstone, Limestone
OtherSiltstone, Sandstone
Location
RegionBedfordshire, Buckinghamshire, Oxfordshire, Dorset
CountryUnited Kingdom
Type section
Named forWychwood Forest

The Forest Marble is a geological formation in England. Part of the Great Oolite Group, it dates to the late Bathonian stage of the Middle Jurassic.[1]

Lithology

[edit | edit source]

The primary lithology of the formation typically consists of greenish grey variably calcareous silicate mudstone, with lenticular cross bedded limestone units deposited in a marine setting.[2]

Paleobiota

[edit | edit source]

Despite the formation being nearly entirely marine, at several localities abundant remains of terrestrial microvertebrates are found, the primary locality being the Kirtlington Mammal Bed (designated 3p) in Kirtlington Quarry near Kirtlington, Oxfordshire.[3] Another important locality is Watton Cliff near Eype in Dorset.[4]

Fish

[edit | edit source]
Fish of the Forest Marble Formation[5]
Genus Species Location Stratigraphic position Abundance Notes Images
Hybodus Hybodus obtusus Watton Cliff A hybodont shark
Egertonodus Egertonodus duffini
Secarodus Secarodus polyprion
Strophodus Spp. A hybodont shark, formerly considered to be Asteracanthus
Lonchidion Indeterminate A hybodont shark
Parvodus Parvodus pattersoni
Lissodus Lissodus leiopleurus
Palaeocarcharias?[6] Indeterminate Possibly the oldest lamniform shark

Dinosaurs

[edit | edit source]

Ornithischians

[edit | edit source]
Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
Ornithischians of the Forest Marble Formation
Genus Species Location Stratigraphic position Abundance Notes Images

Alocodon[7]

Indeterminate[7]

Hylaeosaurus[9]

Indeterminate[9]

Dubious

Iguanodon[11]

Indeterminate[11]

Dubious, probably indeterminate ornithischian

Saurischians

[edit | edit source]
Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
Saurischians reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images

Bothriospondylus[12]

B. robustus[10]

"Dorsal vertebra."[13]

Reassigned to Marmarospondylus

File:Cetiosaurus.jpg
Cetiosaurus
File:Proceratosaurus NT.jpg
Proceratosaurus

Indeterminate[8]

Cardiodon[10]

C. rugulosus[10]

Cetiosaurus[14]

C. oxoniensis

  • Oxfordshire

A cetiosaurid sauropod.

"Cetiosaurus"

C. glymptonensis[8]

"Caudal vertebrae."[15]

Actually indeterminate theropod remains.[16][failed verification]
Dromaeosauridae[17] Indeterminate[17] "Teeth"[17] Remains represent three species. Same species also present in the Chipping Norton Limestone.[17] Other authors have questioned the attribution to dromaeosaurs.[18]

Marmarospondylus

Dorsal verebra Dubious genus of sauropod

Megalosaurus[19]

M. bucklandii[16]

Indeterminate[20]

Actually indeterminate theropod remains.[20]

Proceratosaurus[16] P. bradleyi[16] A proceratosaurid theropod. The geological formation that this species comes from is disputed, and other authors have attributed the strata to the White Limestone Formation.[22]

Amphibians

[edit | edit source]
Amphibians reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
Anoualerpeton A. priscus Kirtlington Albanerpetontid
"Eodiscoglossus" "E." oxoniensis Kirtlington Frog, probably not closely related to type species of genus.
File:Eodiscoglossus NT.jpg
Eodiscoglossus
Marmorerpeton M. kermacki, M. freemani Kirtlington, Watton Cliff Neotenic stem-group salamander (Caudata) belonging to Karauridae
File:Marmorerpeton wakei skull front view Jones et al 2022 PNAS.png
Skull reconstruction of the closely related Marmorerpeton wakei
Caudata Indeterminate Kirtlington 2 distinct taxa, one common one small, referred to as Kirtlington Salamander A and B, respectively

Turtles

[edit | edit source]
Turtles reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
Paracryptodira[23] Indeterminate Kirtlington Shell fragments, basisphenoid

Choristoderes

[edit | edit source]
Choristoderes reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
Cteniogenys Indeterminate Kirtlington A small, lizard like choristoderan. Oldest record of the group

Pterosaurs

[edit | edit source]
Choristoderes reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
"Rhamphorhynchoidea" Indeteriminate Kirtlington

Lepidosauromorphs

[edit | edit source]
Lepidosauromorphs reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
Balnealacerta B. silvestris Kirtlington Scincomorph lizard
Bellairsia B. gracillis Kirtlington Squamate
File:Bellairsia skull diagram.png
Eophis E. underwoodi Kirtlington Stem-snake
Marmoretta M. oxoniensis Kirtlington Basal Lepidosauromorph
File:Marmoretta.svg
Oxiella O. tenuis Kirtlington Squamate
Parviraptor cf. estesi Kirtlington Stem-snake
Saurillodon S. marmorensis Kirtlington Paramacellodid lizard
Rhynchocephalia Indeterminate Kirtlington

Crocodyliformes

[edit | edit source]
Crocodyliformes reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
cf. Goniopholis Indeterminate Kirtlington
File:Goniopholis BW.jpg
Goniopholis
cf. Theriosuchus Indeterminate Kirtlington

Mammaliamorphs

[edit | edit source]
Mammaliamorphs reported from the Forest Marble Formation
Genus Species Location Stratigraphic position Material Notes Images
Amphitherium Indeterminate ?Kirtlington, Watton Cliff The first Mesozoic mammal to be described. Initially believed to be a marsupial. Close relative of Palaeoxonodon and Peramuridae.
Borealestes B. serendipitus Kirtlington, Watton Cliff molar fragments Docodonta
Dobunnodon B. mussetti Kirtlington molar fragments
Gobiconodon G. bathoniensis Kirtlington, Watton Cliff Gobiconodontid
Hahnotherium H. antiquum Kirtlington, Watton Cliff Multituberculate
Kermackodon K. multicuspis, K. oxfordensis Kirtlington, Watton Cliff Allotherian belonging to the family Kermackodontidae, K. oxfordensis previously placed in separate genus Eleutherodon.
File:Kermackodon.png
Kirtlingtonia K. catenata Kirtlington Haramiyid
Krusatodon K. kirtlingtonensis Kirtlington Tegotheriid docodontan
Millsodon M. superstes Kirtlington, Watton Cliff Haramiyid
Morganucodon M. tardus Watton Cliff Morganucodontidae
File:Morganucodon.jpg
Morganucodon
Palaeoxonodon P. ooliticus Kirtlington, Watton Cliff Amphitheriid
File:Palaeoxonodon.jpg
Paritatodon P. kermacki Kirtlington Docodontan or Shuotheriidae
Peraiocynodon P. major Kirtlington Docodontidae
Phascolotherium P. simpsoni Kirtlington, Watton Cliff Amphilestidae
Simpsonodon S. oxfordensis Kirtlington Docodonta
Shuotherium Indeterminate Kirtington Shuotheriidae
Stereognathus S. ooliticus Kirtlington, Watton Cliff Tritylodontidae
Stylidens S. hookeri Watton Cliff Morganucodontidae
Wareolestes W. rex Kirtlington Morganucodonta
Allotheria Indeterminate Kirtlington
Haramiyida Indeterminate Kirtlington
Dryolestida Indeterminate Lower molars
Peramuridae Indeterminate Watton Cliff

See also

[edit | edit source]

Lua error in mw.title.lua at line 392: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal').

Footnotes

[edit | edit source]
  1. ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Middle Jurassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmรณlska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 538โ€“541. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  7. ^ a b Listed as "cf. Alocodon sp." in "10.11 Oxfordshire, England; 6. Forest Marble Formation," in Weishampel, et al. (2004). Page 540.
  8. ^ a b c d e f g "10.11 Oxfordshire, England; 6. Forest Marble Formation," in Weishampel, et al. (2004). Page 540.
  9. ^ a b Listed as "?Hylaeosaurus sp." in "10.13 Wiltshire, England; 3. Forest Marble Formation," in Weishampel, et al. (2004). Page 540.
  10. ^ a b c d e f "10.13 Wiltshire, England; 3. Forest Marble Formation," in Weishampel, et al. (2004). Page 540.
  11. ^ a b Listed as "?Iguanodon sp." in "10.11 Oxfordshire, England; 6. Forest Marble Formation," in Weishampel, et al. (2004). Page 540.
  12. ^ "10.11 Oxfordshire, England; 6. Forest Marble Formation" and "10.13 Wiltshire, England; 3. Forest Marble Formation," in Weishampel, et al. (2004). Page 540.
  13. ^ "Table 13.1," in Weishampel, et al. (2004). Page 270.
  14. ^ "10.11 Oxfordshire, England; 6. Forest Marble Formation," in Weishampel, et al. (2004). Page 538, 540.
  15. ^ "Table 13.1," in Weishampel, et al. (2004). Page 265.
  16. ^ a b c d e f "10.3 Gloucestershire, England; 4. Forest Marble Formation," in Weishampel, et al. (2004). Page 538.
  17. ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  18. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  19. ^ Weishampel, et al. (2004). Pages 539-540.
  20. ^ a b "10.7 Dorset, England; 2. Forest Marble Formation" and "10.11 Oxfordshire, England; 6. Forest Marble Formation," in Weishampel, et al. (2004). Pages 539-540.
  21. ^ "10.7 Dorset, England; 2. Forest Marble Formation," in Weishampel, et al. (2004). Page 539.
  22. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  23. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

References

[edit | edit source]
  • Weishampel, David B.; Dodson, Peter; and Osmรณlska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
Retrieved from "http://70.231.62.181/index.php?title=Forest_Marble_Formation&oldid=10630094"