Mammal Bed, Durlston Bay (DB83): Middle Berriasian, United Kingdom
collected by mainly S. H. Beckles 1800
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
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Mammalia indet.
Linnaeus 1758
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Simpson 1928 | 3 specimens | ||||||||
BMNH 48250, M13126 (femora); 48361 (left humerus) | ||||||||||
Mammalia
- Multituberculata
- Allodontidae
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Plagiaulax minor n. sp.
Falconer 1857
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Owen 1871 | 1 specimen | ||||||||
recombined as Ctenacodon minor | ||||||||||
BMNH 47729 (holotype right mandible) | ||||||||||
Mammalia
- Multituberculata
- Plagiaulacidae
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Plagiaulax becklesii n. gen., n. sp.
Falconer 1857
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Owen 1871 | 1 specimen | ||||||||
BMNH 47731 (holotype right mandible), 47732, 47733, 47734 | ||||||||||
Plagiaulax medius n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Plagiaulax becklesii | ||||||||||
BMNH 47728 (holotype left mandible) | ||||||||||
Plioprion minor n. sp.
Falconer 1857
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Simpson 1928 | 1 specimen | ||||||||
recombined as Bolodon minor | ||||||||||
Bolodon crassidens n. gen., n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
BMNH 47735, holotype maxilla + premaxilla | ||||||||||
Bolodon elongatus n. sp.
Simpson 1928
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Simpson 1928 | 1 specimen | ||||||||
BMNH 47736, holotype partial skull | ||||||||||
Plagiaulax falconeri n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
recombined as Bolodon falconeri | ||||||||||
BMNH 47730 (holotype right mandible) | ||||||||||
Bolodon osborni n. sp.
Simpson 1928
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Simpson 1928 | 1 specimen | ||||||||
BMNH 47735a, holotype partial right maxilla | ||||||||||
Mammalia
- Spalacotheriidae
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Spalacotherium tricuspidens
Owen 1854
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Owen 1871 | 5 specimens | ||||||||
BMNH 47748, 47749a, 47749b, 47750, M5633; Sedgwick Museum J11378 (fragment of right dentary) | ||||||||||
Peralestes longirostris n. gen., n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Spalacotherium tricuspidens | ||||||||||
BMNH 47740, holotype maxilla; Sedwick Museum J11379 (skull fragment) | ||||||||||
Mammalia
- Peramura
- Peramuridae
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Peramus minor n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
BMNH 47754, holotype left mandible | ||||||||||
Leptocladus dubius n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
recombined as Peramus dubius | ||||||||||
BMNH 47739, holotype left mandible | ||||||||||
Peramus tenuirostris n. gen., n. sp.
Owen 1871
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Owen 1871 | 2 specimens | ||||||||
BMNH 47742, 48404; originally, 47744 was also refereed here, but Davis (2012) made it the type of Peramuroides tenuiscus (see below) | ||||||||||
Spalacotherium minus n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
recombined as Kouriogenys minor | ||||||||||
BMNH 47751, holotype left mandible | ||||||||||
Peramuroides tenuiscus n. gen., n. sp.
Davis 2012
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Davis 2012 | 2 specimens | ||||||||
Holotype partial mandible (BMNH M47744); BMNH M47799, a right dentary fragment preserving the angular process, an alveolus for the p5 and broken crowns of the m1–m3. | ||||||||||
Mammalia
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Durlstodon ensomi n. gen., n. sp.
Sweetman et al. 2017
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Sweetman et al. 2017 | 1 specimen | ||||||||
Durlstotherium newmani n. gen., n. sp.
Sweetman et al. 2017
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Sweetman et al. 2017 | 1 specimen | ||||||||
Mammalia
- Pantotheria
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Pantotheria indet.
Marsh 1880
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Owen 1871 | 6 specimens | ||||||||
BMNH 47769, 47792, 48208A, 48406, M13133, M13130 | ||||||||||
? Pantotheria indet.
Marsh 1880
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Owen 1871 | 3 specimens | ||||||||
BMNH 47737, 47798, M13128 | ||||||||||
Mammalia
- Dryolestidae
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Dryolestidae indet.
Marsh 1879
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Owen 1871 | 7 specimens | ||||||||
BMNH 47770, 47795, 47803, 48244, 48401, 48405, M13132, M13131 | ||||||||||
Peraspalax talpoides n. gen., n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
BMNH 47738, holotype left mandible | ||||||||||
Amblotherium sp.
Owen 1871
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Simpson 1928 | 2 specimens | ||||||||
BMNH 47800, 48369 | ||||||||||
Stylodon pusillus n. gen., n. sp.
Owen 1866
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Owen 1871 | 9 specimens | ||||||||
recombined as Amblotherium pusillum | ||||||||||
BMNH M5632, 47756, 47757, 47743, 47746, 47783, 47759, 47761, 47787, 47802, M10927 | ||||||||||
Kurtodon pusillus n. gen., n. sp.
(Owen 1866)
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Simpson 1928 | 2 specimens | ||||||||
recombined as Amblotherium pusillum | ||||||||||
BMNH 47755, holotype left maxilla; 48402 (right maxilla) | ||||||||||
Achyrodon pusillus n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Amblotherium pusillum | ||||||||||
BMNH 47747, holotype left mandible | ||||||||||
Stylodon robustus n. sp.
Owen 1866
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Owen 1871 | 1 specimen | ||||||||
synonym of Amblotherium pusillum | ||||||||||
BMNH 47762, holotype left mandible | ||||||||||
Achyrodon nanus n. gen., n. sp.
Owen 1871
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Owen 1871 | 6 specimens | ||||||||
recombined as Amblotherium nanum | ||||||||||
BMNH 47745, 47758, 47760, 47785, 47786, 48403 | ||||||||||
Amblotherium soricinum n. gen., n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
BMNH 47752, holotype right mandible | ||||||||||
Amblotherium mustelula n. sp.
Owen 1871
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Owen 1871 | 2 specimens | ||||||||
recombined as Phascolestes mustelula | ||||||||||
BMNH 47753 (holotype, right mandible), 47808 | ||||||||||
Phascolestes longirostris
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Phascolestes mustelula | ||||||||||
BMNH 47741, holotype left mandible | ||||||||||
Mammalia
- Eutriconodonta
- Triconodontidae
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Trioracodon oweni n. sp.
Simpson 1928
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Simpson 1928 | 1 specimen | ||||||||
BMNH 47766, holotype mandible | ||||||||||
Triconodon ferox n. sp.
Owen 1871
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Owen 1871 | 17 specimens | ||||||||
recombined as Trioracodon ferox | ||||||||||
BMNH 47775, 47765, 47772, 47773, 47774, 47774a, 47776, 47777, 47778, 47779, 47780, 47781, 47788, 47791, 48397, 48404a, M10474; Sedgwick Museum J13141 (fragment of right dentary) | ||||||||||
Triconodon occisor n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Trioracodon ferox | ||||||||||
BMNH 47782, holotype left mandible | ||||||||||
Triconodontinae indet.
Hay 1902
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Simpson 1928 | 2 specimens | ||||||||
BMNH 47797 (partial left maxilla), 47807 (anterior premolar) | ||||||||||
Triconodon mordax n. gen., n. sp.
Owen 1859
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Owen 1859 | 12 specimens | ||||||||
BMNH 47764, 47763, 47767, 47768, 47784, 47789, 47790, 47793a, 47794, 47796, 47806, 48395, 48396, M79, M3705 | ||||||||||
Triconodon minor n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Triconodon mordax | ||||||||||
BMNH 47771, holotype mandible | ||||||||||
Triacanthodon serrula n. gen., n. sp.
Owen 1871
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Owen 1871 | 1 specimen | ||||||||
synonym of Triconodon mordax | ||||||||||
BMNH 47763, holotype fragmentary skull | ||||||||||
Docodonta
- Docodontidae
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Peraiocynodon inexpectatus n. gen., n. sp.
Simpson 1928
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Simpson 1928 | 1 specimen | ||||||||
BMNH 48248, holotype left mandible | ||||||||||
Reptilia
- Compsemydidae
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Tongemys enigmatica n. gen., n. sp.
Joyce et al. 2022
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Joyce et al. 2022 | 1 specimen | ||||||||
NHMUK PV OR 48262/48265, a near complete shell preserved on two separately catalogued slabs | ||||||||||
Reptilia
- Pleurosternidae
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Pleurosternon bullockii
(Owen 1842)
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Lydekker 1889 | 19 specimens | ||||||||
BMNH 48262 (partial juvenile shell), 48263, 48353, 48354, 48347, 48343, 48346, 48263c, 48263a, 48263e, 48344m 48351, 48252, 48252a (juvenile shells collected from Beckle's 'Mammal Pit' according to Milner (2004)); BMNH 48364 (right humerus), 48268 (right humerus), 48267 (left humerus), 48266 (left femur), 48369 (left femur), 48269 (phalanges) | ||||||||||
Reptilia
- Paramacellodidae
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Macellodus brodiei
Owen 1854
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Hoffstetter 1967 | 35 individuals | ||||||||
BMNH R8182 (neotype dentary); plus remains of 35 individuals, includes 22 dentaries and 8 maxilla | ||||||||||
= Becklesius hoffstetteri
Seiffert 1975
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Estes 1983 | |||||||||
"Becklesius includes most of the material referred by Hoffstetter (1967) to Macellodus brodiei, which... is now known to be a crocodilian" (Estes 1983, p. 116) | ||||||||||
= Becklesius sp.
Estes 1983
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Evans and Searle 2002 | |||||||||
"Estes referred the Purbeck material to the same species. However, Seiffert's illustrations of the Guimarota teeth suggest differences in the degree of posterior expansion...uncertainty is recognised by referred in teeth to Becklesius sp." (Evans & Searle 2002) | ||||||||||
Paramacellodus oweni n. gen., n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | |||||||||
Becklesisaurus scincoides n. gen., n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | 1 specimen | ||||||||
synonym of Paramacellodus oweni | ||||||||||
BMNH R8082 (holotype) | ||||||||||
Saurillus robustidens n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | 2 specimens | ||||||||
BMNH R8130 (holotype dentary), R8086 (maxilla) | ||||||||||
Reptilia
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Durotrigia triconidens n. gen., n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | 1 specimen | ||||||||
BMNH R8122 (holotype) | ||||||||||
Parviraptor estesi n. gen., n. sp.
Evans 1994
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Evans 1994 | 1 specimen | ||||||||
BMNH R48388 (partial skull) | ||||||||||
Pseudosaurillus becklesi n. gen., n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | 27 individuals | ||||||||
Includes BMNH R8095 (holotype dentary and postcrania), 18 dentaries and 6 maxillae) | ||||||||||
Reptilia
- Dorsetisauridae
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Dorsetisaurus hebetidens n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | 1 specimen | ||||||||
BMNH R8109 (holotype maxilla) | ||||||||||
Dorsetisaurus purbeckensis n. gen., n. sp.
Hoffstetter 1967
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Hoffstetter 1967 | 32 individuals | ||||||||
Includes BMNH R8129 (holotype), 15 dentaries and 10 maxilla | ||||||||||
Reptilia
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Saurillus obtusus
Owen 1855
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Hoffstetter 1967 | 57 individuals | ||||||||
Includes 44 dentaries and 8 maxillae and neotype left mandible (BMNH R8135) | ||||||||||
= Pseudosaurillus sp.
Hoffstetter 1967
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Estes 1983 | |||||||||
= Parasaurillus pseudobtusus n. gen., n. sp.
Evans and Searle 2002
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Evans and Searle 2002 | |||||||||
Reptilia
- Goniopholididae
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Macellodus brodiei n. gen., n. sp.
Owen 1854
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Estes 1983 | 1 specimen | ||||||||
nomen dubium belonging to Goniopholis | ||||||||||
lost holotype maxilla | ||||||||||
Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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Milner 2002 | 1 specimen | ||||||||
CAMSM J 13956 | ||||||||||
Reptilia
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Paraves indet.
Sereno 1997
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Evans 1994 | 1 specimen | ||||||||
Isolated tooth on BMNH R48388 block | ||||||||||
Reptilia
- Dromaeosauridae
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Nuthetes destructor
Owen 1854
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Milner 2002 | 1 specimen | ||||||||
CAMSM J 13951 | ||||||||||
Reptilia
- Rhynchocephalia
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Rhynchocephalia indet.
Günther 1867
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Evans and Searle 2002 | |||||||||
see common names |
Geography
Country: | United Kingdom | State/province: | England | County: | Dorset |
Coordinates: | 50.6° North, 2.0° West (view map) | ||||
Paleocoordinates: | 41.5° North, 7.8° East | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Stage: | Berriasian | 10 m.y. bin: | Cretaceous 1 |
Key time interval: | Middle Berriasian | ||
Age range of interval: | 145.00000 - 140.20000 m.y. ago |
Stratigraphy
Geological group: | Purbeck | Formation: | Lulworth | Member: | Worbarrow Tout |
Local section: | Durlston Bay | Local bed: | DB83 | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Marly Freshwater Mbr. now = top of Worbarrow Tout Mbr. |
Lithology and environment
Primary lithology: | not reported |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Disassociated major elements: | some |
Fragmentation: | occasional |
Collection methods and comments
Collection methods: | survey of museum collection | ||
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | BMNH | ||
Collectors: | mainly S. H. Beckles | Collection dates: | 1800s |
Collection method comments: Also mammal remains in the Sedgwick Museum, Cambridge, England |
Metadata
Also known as: | Durdlestone Bay | ||
Database number: | 72142 | ||
Authorizer: | M. Carrano, M. Uhen, R. Benson, E. Vlachos | Enterer: | M. Carrano, M. Uhen, R. Benson, E. Vlachos |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2007-05-25 12:51:07 | Last modified: | 2013-06-24 17:03:50 |
Access level: | the public | Released: | 2007-05-25 12:51:07 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
38668. | R. F. Damon. 1884. Handbook to the Geology of Weymouth, Portland, and Coast of Dorsetshire, from Swanage to Bridport-on-the-Sea, with Natural History of and Archaeological Notes. New and Enlarged Edition. Edward Stanford, London 1-250 [M. Carrano/M. Carrano] |
Secondary references:
31205 | ETE | R. B. J. Benson and P. M. Barrett. 2009. Dinosaurs of Dorset: part I, the carnivorous dinosaurs (Saurischia, Theropoda). Proceedings of the Dorset Natural History and Archaeological Society 130:133-147 [M. Carrano/M. Carrano] |
45919 | W. A. Clemens. 1963. Late Jurassic mammalian fossils in the Sedgwick Museum, Cambridge. Palaeontology 6(2):373-377 [P. Mannion/J. Tennant] | |
42299 | B. M. Davis. 2012. Micro-computed tomography reveals a diversity of peramuran mammals from the Purbeck Group (Berriasian) of England. Palaeontology 55(4):789-817 [R. Benson/R. Benson] | |
47078 | J. B. Delair. 1958. The Mesozoic reptiles of Dorset. Part one. Proceedings of the Dorset Natural History and Archaeological Society 79:47-72 [M. Carrano/M. Carrano/M. Carrano] | |
14549 | R. Estes. 1983. Sauria terrestria, Amphisbaenia. Handbuch der Paläoherpetologie 10A:1-249 [J. Head/J. Head/R. Benson] | |
37904 | S. E. Evans. 1994. A new anguimorph lizard from the Jurassic and Lower Cretaceous of England. Palaeontology 37(1):33-49 [R. Benson/R. Benson] | |
34139 | ETE | S. E. Evans and B. Searle. 2002. Lepidosaurian reptiles from the Purbeck Limestone Group of Dorset, southern England. In A. R. Milner, D. J. Batten (eds.), Life and Environments in Purbeck Times. Special Papers in Palaeontology 68:145-149 [M. Carrano/M. Carrano] |
39389 | G. Hahn. 1971. The dentition of the Paulchoffatiidae (Multituberculata, Upper Jurassic). Memoria, Servicos Geologicos de Portugal 17:1-39 [R. Benson/R. Benson] | |
38135 | R. Hoffstetter. 1967. Coup d'oeil sur les Sauriens (lacertiliens) des couches de Purbeck (Jurassique supérieur d'Angleterre Résumé d'un Mémoire). Colloques Internationaux du Centre National de la Recherche Scientifique 163:349-371 [R. Benson/R. Benson] | |
82460 | W. G. Joyce, J. R. Bourque, V. Fernandez and Y. Rollot. 2022. An alternative interpretation of small-bodied turtles from the “Middle Purbeck” of England as a new species of compsemydid turtle. Fossil Record 25(2):263-274 [E. Vlachos/E. Vlachos] | |
41531 | R. Lydekker. 1889. Catalogue of the Fossil Reptilia and Amphibia in the British Museum (Natural History) Part III. The Order Chelonia 1-239 [R. Benson/R. Benson/M. Uhen] | |
24418 | ETE | A. C. Milner. 2002. Theropod dinosaurs of the Purbeck Limestone Group, southern England. In A. R. Milner & D. J. Batten (eds.), Life and Environments in Purbeck Times. Special Papers in Palaeontology 68:191-201 [M. Carrano/M. Carrano] |
41526 | A. R. Milner. 2004. The turtles of the Purbeck Limestone Group of Dorset, southern England. Palaeontology 47(6):1441-1467 [R. Benson/R. Benson] | |
16226 | R. Owen. 1859. Palaeontology. The Encyclopaedia Brittanica, or Dictionary of Arts, Sciences, and General Literature (8th Edition) 17:91-176 [P. Wagner/P. Wagner/M. Carrano] | |
29873 | R. Owen. 1871. Monograph of the fossil Mammalia of the Mesozoic formations. 24(110):vi-115 [R. Butler/R. Butler/M. Carrano] | |
38748 | G. G. Simpson. 1928. A Catalogue of the Mesozoic Mammalia in the Geological Department of the British Museum 1-215 [R. Benson/R. Benson/M. Uhen] | |
63767 | S. C. Sweetman, G. Smith, and D. M. Martill. 2017. Highly derived eutherian mammals from the earliest Cretaceous of southern Britain. Acata Paleontologica Polonica 62(4):657-665 [M. Uhen/M. Uhen/P. Mannion] |