Mammal Bed, Durlston Bay (DB83) (Cretaceous of the United Kingdom)

Also known as Durdlestone Bay

Where: England, United Kingdom (50.6° N, 2.0° W: paleocoordinates 41.5° N, 7.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Worbarrow Tout Member (Lulworth Formation), Middle Berriasian (145.0 - 140.2 Ma)

• Marly Freshwater Mbr. now = top of Worbarrow Tout Mbr.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collected by mainly S. H. Beckles in the 1800s; reposited in the BMNH

• Also mammal remains in the Sedgwick Museum, Cambridge, England

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 72142: authorized by Matthew Carrano, entered by Matthew Carrano on 25.05.2007, edited by Mark Uhen and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Pleurosternidae
Pleurosternon bullockii6 Owen 1842 turtle
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)
 Theropoda -
Theropoda indet.7 theropod
CAMSM J 13956
 Avetheropoda -
Paraves indet.3 Sereno 1997 coelurosaur
Isolated tooth on BMNH R48388 block
 Avetheropoda - Dromaeosauridae
Nuthetes destructor7 Owen 1854 coelurosaur
CAMSM J 13951
 Loricata - Goniopholididae
"Macellodus brodiei n. gen. n. sp." = Goniopholis brodiei2
"Macellodus brodiei n. gen. n. sp." = Goniopholis brodiei2 Owen 1854 crocodilian
lost holotype maxilla
 Squamata - Dorsetisauridae
Dorsetisaurus hebetidens n. sp.5 Hoffstetter 1967 lizard
BMNH R8109 (holotype maxilla)
Dorsetisaurus purbeckensis n. gen. n. sp.5 Hoffstetter 1967 lizard
Includes BMNH R8129 (holotype), 15 dentaries and 10 maxilla
 Squamata -
Durotrigia triconidens n. gen. n. sp.5, Parviraptor estesi n. gen. n. sp.3, Parasaurillus pseudobtusus n. gen. n. sp.4, Pseudosaurillus becklesi n. gen. n. sp.5
Durotrigia triconidens n. gen. n. sp.5 Hoffstetter 1967 lizard
BMNH R8122 (holotype)
Parviraptor estesi n. gen. n. sp.3 Evans 1994 lizard
BMNH R48388 (partial skull)
Parasaurillus pseudobtusus n. gen. n. sp.4 Evans and Searle 2002 lizard
Includes 44 dentaries and 8 maxillae and neotype left mandible (BMNH R8135)
Pseudosaurillus becklesi n. gen. n. sp.5 Hoffstetter 1967 lizard
Includes BMNH R8095 (holotype dentary and postcrania), 18 dentaries and 6 maxillae)
 Squamata - Paramacellodidae
"Paramacellodus oweni n. gen. n. sp." = Paramacellodus oweni5, "Becklesisaurus scincoides n. gen. n. sp." = Paramacellodus oweni5, Saurillus robustidens n. sp.5, Becklesius sp.4
"Paramacellodus oweni n. gen. n. sp." = Paramacellodus oweni5 Hoffstetter 1967 lizard
"Becklesisaurus scincoides n. gen. n. sp." = Paramacellodus oweni5 Hoffstetter 1967 lizard
BMNH R8082 (holotype)
Saurillus robustidens n. sp.5 Hoffstetter 1967 lizard
BMNH R8130 (holotype dentary), R8086 (maxilla)
Becklesius sp.4 Estes 1983 lizard
BMNH R8182 (neotype dentary); plus remains of 35 individuals, includes 22 dentaries and 8 maxilla
 Lepidosauria -
Rhynchocephalia indet.4 Günther 1867 rhynchocephalian
Mammalia
  -
Mammalia indet.9 Linnaeus 1758 mammal
BMNH 48250, M13126 (femora); 48361 (left humerus)
 Eutriconodonta - Triconodontidae
Triconodontinae indet.9, Trioracodon oweni n. sp.9, "Triconodon ferox n. sp." = Trioracodon ferox8, "Triconodon occisor n. sp." = Trioracodon ferox8, "Triconodon mordax n. gen. n. sp." = Triconodon mordax8, "Triacanthodon serrula n. gen. n. sp." = Triconodon mordax8, "Triconodon minor n. sp." = Triconodon mordax8
Triconodontinae indet.9 Hay 1902 mammal
BMNH 47797 (partial left maxilla), 47807 (anterior premolar)
Trioracodon oweni n. sp.9 Simpson 1928 mammal
BMNH 47766, holotype mandible
"Triconodon ferox n. sp." = Trioracodon ferox8 Owen 1871 mammal
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." = Trioracodon ferox8 Owen 1871 mammal
BMNH 47782, holotype left mandible
"Triconodon mordax n. gen. n. sp." = Triconodon mordax8 Owen 1859 mammal
BMNH 47764, 47763, 47767, 47768, 47784, 47789, 47790, 47793a, 47794, 47796, 47806, 48395, 48396, M79, M3705
"Triacanthodon serrula n. gen. n. sp." = Triconodon mordax8 Owen 1859 mammal
BMNH 47763, holotype fragmentary skull
"Triconodon minor n. sp." = Triconodon mordax8 Owen 1859 mammal
BMNH 47771, holotype mandible
 Tribosphenida -
Durlstotherium newmani n. gen. n. sp.10, Durlstodon ensomi n. gen. n. sp.10
Durlstotherium newmani n. gen. n. sp.10 Sweetman et al. 2017 eutherian
Durlstodon ensomi n. gen. n. sp.10 Sweetman et al. 2017 eutherian
 Theriiformes - Dryolestidae
Dryolestidae indet.8, Peraspalax talpoides n. gen. n. sp.8, "Amblotherium mustelula n. sp." = Phascolestes mustelula8, "Phascolestes longirostris" = Phascolestes mustelula8, Amblotherium sp.9, "Stylodon pusillus n. gen. n. sp." = Amblotherium pusillum8, "Kurtodon pusillus n. gen. n. sp." = Amblotherium pusillum9, "Stylodon robustus n. sp." = Amblotherium pusillum8, "Achyrodon pusillus n. sp." = Amblotherium pusillum8, Amblotherium soricinum n. gen. n. sp.8, "Achyrodon nanus n. gen. n. sp." = Amblotherium nanum8
Dryolestidae indet.8 Marsh 1879 mammal
BMNH 47770, 47795, 47803, 48244, 48401, 48405, M13132, M13131
Peraspalax talpoides n. gen. n. sp.8 Owen 1871 mammal
BMNH 47738, holotype left mandible
"Amblotherium mustelula n. sp." = Phascolestes mustelula8 Owen 1871 mammal
BMNH 47753 (holotype, right mandible), 47808
"Phascolestes longirostris" = Phascolestes mustelula8 Owen 1871 mammal
BMNH 47741, holotype left mandible
Amblotherium sp.9 Owen 1871 mammal
BMNH 47800, 48369
"Stylodon pusillus n. gen. n. sp." = Amblotherium pusillum8 Owen 1866 mammal
BMNH M5632, 47756, 47757, 47743, 47746, 47783, 47759, 47761, 47787, 47802, M10927
"Kurtodon pusillus n. gen. n. sp." = Amblotherium pusillum9 Owen 1866 mammal
BMNH 47755, holotype left maxilla; 48402 (right maxilla)
"Stylodon robustus n. sp." = Amblotherium pusillum8 Owen 1866 mammal
BMNH 47762, holotype left mandible
"Achyrodon pusillus n. sp." = Amblotherium pusillum8 Owen 1866 mammal
BMNH 47747, holotype left mandible
Amblotherium soricinum n. gen. n. sp.8 Owen 1871 mammal
BMNH 47752, holotype right mandible
"Achyrodon nanus n. gen. n. sp." = Amblotherium nanum8 Owen 1871 mammal
BMNH 47745, 47758, 47760, 47785, 47786, 48403
 Pantotheria -
Pantotheria indet.8 mammal
BMNH 47769, 47792, 48208A, 48406, M13133, M13130
? Pantotheria indet.8 mammal
BMNH 47737, 47798, M13128
 Peramura - Peramuridae
Peramuroides tenuiscus n. gen. n. sp.1, "Spalacotherium minus n. sp." = Kouriogenys minor8
Peramuroides tenuiscus n. gen. n. sp.1 Davis 2012 mammal
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.
"Spalacotherium minus n. sp." = Kouriogenys minor8 Owen 1871 mammal
BMNH 47751, holotype left mandible
 Theriiformes -
Peramus tenuirostris n. gen. n. sp.8, "Leptocladus dubius n. sp." = Peramus dubius8, Peramus minor n. sp.8
Peramus tenuirostris n. gen. n. sp.8 Owen 1871 mammal
BMNH 47742, 48404; originally, 47744 was also refereed here, but Davis (2012) made it the type of Peramuroides tenuiscus (see below)
"Leptocladus dubius n. sp." = Peramus dubius8 Owen 1871 mammal
BMNH 47739, holotype left mandible
Peramus minor n. sp.8 Owen 1871 mammal
BMNH 47754, holotype left mandible
 Theriiformes - Spalacotheriidae
"Spalacotherium tricuspidens" = Spalacotherium tricuspidens8, "Peralestes longirostris n. gen. n. sp." = Spalacotherium tricuspidens8
"Spalacotherium tricuspidens" = Spalacotherium tricuspidens8 Owen 1854 mammal
BMNH 47748, 47749a, 47749b, 47750, M5633; Sedgwick Museum J11378 (fragment of right dentary)
"Peralestes longirostris n. gen. n. sp." = Spalacotherium tricuspidens8 Owen 1854 mammal
BMNH 47740, holotype maxilla; Sedwick Museum J11379 (skull fragment)
 Docodonta - Docodontidae
Peraiocynodon inexpectatus n. gen. n. sp.9 Simpson 1928 dodocont
BMNH 48248, holotype left mandible
 Multituberculata - Plagiaulacidae
"Plioprion minor n. sp." = Bolodon minor9, Bolodon crassidens n. gen. n. sp.8, Bolodon osborni n. sp.9, Bolodon elongatus n. sp.9, "Plagiaulax falconeri n. sp." = Bolodon falconeri8, "Plagiaulax becklesii n. gen. n. sp." = Plagiaulax becklesii8, "Plagiaulax medius n. sp." = Plagiaulax becklesii8
"Plioprion minor n. sp." = Bolodon minor9 Falconer 1857 multituberculate
Bolodon crassidens n. gen. n. sp.8 Owen 1871 multituberculate
BMNH 47735, holotype maxilla + premaxilla
Bolodon osborni n. sp.9 Simpson 1928 multituberculate
BMNH 47735a, holotype partial right maxilla
Bolodon elongatus n. sp.9 Simpson 1928 multituberculate
BMNH 47736, holotype partial skull
"Plagiaulax falconeri n. sp." = Bolodon falconeri8 Owen 1871 multituberculate
BMNH 47730 (holotype right mandible)
"Plagiaulax becklesii n. gen. n. sp." = Plagiaulax becklesii8 Falconer 1857 multituberculate
BMNH 47731 (holotype right mandible), 47732, 47733, 47734
"Plagiaulax medius n. sp." = Plagiaulax becklesii8 Falconer 1857 multituberculate
BMNH 47728 (holotype left mandible)
 Multituberculata - Allodontidae
"Plagiaulax minor n. sp." = Ctenacodon minor8
"Plagiaulax minor n. sp." = Ctenacodon minor8 Falconer 1857 multituberculate
BMNH 47729 (holotype right mandible)