PBDB Collection

Sunnydown Farm Quarry (clay: upper horizon; equivalent to DB 102/103 ) (Cretaceous to of the United Kingdom)

Also known as Langton Matravers

Where: England, United Kingdom (50.6° N, 2.0° W: paleocoordinates 41.5° N, 7.9° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Worbarrow Tout Member (Lulworth Formation), Early/Lower Berriasian to Early/Lower Berriasian (145.0 - 140.2 Ma)

• Uppermost Lulworth Beds of Casey 1963, lying just below the Cinder Member, the base of which currently marks the Jr/K boundary in Southern England. Section originally published by Ensom 1985. Correlated with horizon DB102 in Durlston Bay.

•Ensom & Sigogneau-Russell (1998, p. 35): The upper horizon lies at the junction of a clay, locally termed the 'Sly', which immediately underlies the 'Cap' bed, 2.6 m below the base of the Cinder Member. This clay-limestone interface can be equated confidently with beds DB 102/103 in Durlston Bay (CLements 1993).

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

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; cherty/siliceous limestone and argillaceous, calcareous claystone

• Conditions of deposition generally brackish or freshwater, though there are occasional appearances of almost normal marine fauna. Clays may represent mud flats bordering a freshwater lake.

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•Ensom & Sigogneau-Russell (1998, p. 35): The sedimentology and environmental setting of the upper horizon has been described by West (1988). Both horizons are thought to represent clays bordering shallow freshwater lakes

• A sequence of thin limestones, micrites, argillaceous micrites, calcareous shales and clays. The limestones often contain nodules of chert.

Size classes: macrofossils, mesofossils

Collection methods: bulk, quarrying, sieve,

• 3 tons of clay dug from the floor of the quarry, normally the top 2-4cm were collected.

Primary reference: P. C. Ensom. 1987. A remarkable new vertebrate site in the Purbeck Limestone Formation on the Isle of Purbeck. Proceedings of the Dorset Natural History and Archaeological Society 108:205-206 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28401: authorized by John Alroy, entered by Erin Leckey on 12.02.2003, edited by Matthew Carrano, Roger Benson, Richard Butler, John Alroy and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

• mostly teeth of vertebrates

Show authors, comments, and common names

Amphibia
Salientia -	Sunnybatrachus purbeckensis⁶ Sunnybatrachus purbeckensis⁶ Evans and McGowan 2002 frog "indeterminate frog"
Caudata -	Apricosiren ensomi n. gen. n. sp.⁶ Apricosiren ensomi n. gen. n. sp.⁶ Evans and McGowan 2002 salamander
Proteida - Batrachosauroididae	Batrachosauroididae indet.⁶ Batrachosauroididae indet.⁶ Auffenberg 1958 salamander "undetermined salamander"
Temnospondyli - Albanerpetontidae	Celtedens megacephalus¹¹ Celtedens megacephalus¹¹ Costa 1864 tetrapod DORCM GS26, 30, 32, 33, 35, 37
Reptilia
Ornithischia - Heterodontosauridae	Echinodon becklesii² Echinodon becklesii² Owen 1861 heterodontosaurid
Theropoda - Dromaeosauridae	cf. Nuthetes destructor cf. Nuthetes destructor Owen 1854 maniraptoran
Pterosauria -	Pterosauria indet.⁸ Pterosauria indet.⁸ Kaup 1834 pterosaur tooth
Loricata - Goniopholididae	Nannosuchus sp.², Goniopholis sp. Nannosuchus sp.² Owen 1879 crocodilian Goniopholis sp. Owen 1842 crocodilian
Loricata - Atoposauridae	Theriosuchus sp. Theriosuchus sp. Owen 1878 crocodilian
Loricata -	cf. Bernissartia sp.¹² cf. Bernissartia sp.¹² Dollo 1883 crocodilian
Eosuchia - Homoeosauridae	Homoeosaurus sp.³ Homoeosaurus sp.³ Meyer 1850 lepidosaur
Squamata -	Squamata "indet. 1"⁷, Squamata "indet. 2"⁷, Squamata "indet. 3"⁷, Pseudosaurillus sp.³ Squamata "indet. 1"⁷ squamates Squamata "indet. 2"⁷ squamates Squamata "indet. 3"⁷ squamates Pseudosaurillus sp.³ Hoffstetter 1967 squamates
Squamata - Paramacellodidae	Paramacellodus sp.², Becklesius sp.² Paramacellodus sp.² Hoffstetter 1967 squamates Becklesius sp.² Estes 1983 squamates
Squamata -	Durotrigia sp.² Durotrigia sp.² Hoffstetter 1967 lizard
Squamata - Dorsetisauridae	Dorsetisaurus sp.³ Dorsetisaurus sp.³ Hoffstetter 1967 squamates
Squamata -	Parasaurillus pseudobtusus⁷ Parasaurillus pseudobtusus⁷ Evans and Searle 2002 squamates
Testudinata - Helochelydridae	Tretosternon sp.² Tretosternon sp.² Owen 1842 turtle
Testudinata - Pleurosternidae	? Pleurosternon sp. ? Pleurosternon sp. Owen 1853 turtle Pleurosternum sic.
Osteichthyes
Morganucodonta -	Purbeckodon batei¹ Purbeckodon batei¹ Butler et al. 2012 mammaliaform DORCM GS 743, broken upper molar; DORCM GS 746, ?last upper molar
Docodonta - Docodontidae	Peraiocynodon sp.² Peraiocynodon sp.² Simpson 1928 dodocont ?=Docodon sp.
Mammalia
Multituberculata - Paulchoffatiidae	Sunnyodon notleyi n. gen. n. sp.⁹ Sunnyodon notleyi n. gen. n. sp.⁹ Kielan-Jaworowska and Ensom 1992 multituberculate
Multituberculata -	"Plagiaulacoidea indet." = Plagiaulacida¹⁰ "Plagiaulacoidea indet." = Plagiaulacida¹⁰ Ameghino 1889 multituberculate DORCM GS 22 and 25 (both partial left p4)
Multituberculata - Plagiaulacidae	"Plagiaulacidae" sp., Bolodon sp., Bolodon osborni⁹ "Plagiaulacidae" sp. Gill 1872 multituberculate Bolodon sp. Owen 1871 multituberculate Bolodon osborni⁹ Simpson 1928 multituberculate
Multituberculata - Pinheirodontidae	Gerhardodon purbeckensis n. gen. n. sp.⁹ Gerhardodon purbeckensis n. gen. n. sp.⁹ Kielan-Jaworowska and Ensom 1992 multituberculate
Multituberculata - Albionbaataridae	Albionbaatar denisae n. gen. n. sp.¹⁰ Albionbaatar denisae n. gen. n. sp.¹⁰ Kielan-Jaworowska and Ensom 1994 multituberculate DORCM GS 212 (sample 40, holotype right P5 in a fragment of maxilla); DORCM GS 227 (sample 77), right P5; GS 24 (sample 70), ?right ?P3; 282 (sample 78), ?left ?P2; 23 (sample 95), ?left ?P1
Theriamorpha - Tinodontidae	Tinodon micron n. sp.⁵ Tinodon micron n. sp.⁵ Ensom and Sigogneau-Russell 2000 mammal DORCM GS 1110 (holotype lower left molar), 437, 538, 1081 (partial left molars), 1078 (partial right molar), 694 (upper right molar)
Theriamorpha - Spalacotheriidae	Spalacotherium sp.², Spalacotherium evansae n. sp.⁵ Spalacotherium sp.² Owen 1854 mammal Spalacotherium evansae n. sp.⁵ Ensom and Sigogneau-Russell 2000 mammal DORCM GS 350, 355, sample 28; 488, 490, sample 30; 769, sample 35; 373, sample 40; 370, 371, 842, 843, sample 58; 380, sample 59; 360, 853, sample 61; 383, sample 62; 389, 390, sample 63; 909, sample 71; 914, sample 73; 437, sample 76; 918, sample 75; 721, sample 78; 928, sample 79; 534, 538, sample 88; 961, sample 95; 669, sample 103; 673, 674, sample 104; 684, sample 106; 694, sample 107; 357, sample 109; 435, sample 112; 1043, sample 114; 1075, 1076, 1078, 1081, sample 116; 1110, sample 119.
Theriamorpha - Dryolestidae	Phascolestes sp.², Amblotherium sp., ? Peraspalax sp.² Phascolestes sp.² Owen 1871 mammal Amblotherium sp. Owen 1871 mammal ? Peraspalax sp.² Owen 1871 mammal
Theriamorpha - Paurodontidae	Dorsetodon haysomi n. gen. n. sp.⁴ Dorsetodon haysomi n. gen. n. sp.⁴ Ensom and Sigogneau-Russell 1998 mammal DORCM GS 433 (holotype right lower molar), 376 (right lower molar), 502 (right lower molar), 438 (left lower molar), 501 (left lower molar), 625 (left lower molar),747 (right lower molar)
Theriamorpha -	Magnimus ensomi n. gen. n. sp.¹³, Chunnelodon alopekodes n. gen. n. sp.⁴ Magnimus ensomi n. gen. n. sp.¹³ Sigogneau-Russell 1999 mammal DORCM GS 627 (type upper molar), 332 (lower right molar), 621 (lower left molar) Chunnelodon alopekodes n. gen. n. sp.⁴ Ensom and Sigogneau-Russell 1998 mammal DORCM GS 378 (holotype left lower molar), 377 (right lower molar)
Eutriconodonta - Triconodontidae	Trioracodon sp.¹, Triconodon sp.¹ Trioracodon sp.¹ Simpson 1928 mammal DORCM GS 610, a right upper molar; DORCM GS 400, mesial part (cusp b) of a left lower molar; DORCM GS 958, mesial end of a lower molar Triconodon sp.¹ Owen 1859 mammal DORCM GS 639, right upper molar; DORCM GS 1046, mesial part of a right upper molariform; DORCM GS 901, could be the mesial two-thirds of an upper triconodontid premolar, but with weak cingula; DORCM GS 618, a right ?lower molariform
Pisces
-	"Pisces indet." = Osteichthyes "Pisces indet." = Osteichthyes Huxley 1880 bony fish
Chondrichthyes
Hybodontiformes - Hybodontidae	aff. Hybodus sp. aff. Hybodus sp. Agassiz 1834 elasmobranch

¹Butler et al. 2012; ²Ensom 1988; ³Ensom et al. 1991; ⁴Ensom and Sigogneau-Russell 1998; ⁵Ensom and Sigogneau-Russell 2000; ⁶Evans and McGowan 2002; ⁷Evans and Searle 2002; ⁸Howse and Milner 1995; ⁹Kielan-Jaworowska and Ensom 1992; ¹⁰Kielan-Jaworowska and Ensom 1994; ¹¹McGowan 1998; ¹²Salisbury 2002; ¹³Sigogneau-Russell 1999