Fletton brick pit, Peterborough (Leeds Collection at Tübingen [GPIT]): Middle Callovian, United Kingdom
collected by A. N. Leeds

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Leedsia problematica
Reptilia - Teleosauridae
Steneosaurus dasycephalus Seeley 1869
Reptilia - Metriorhynchidae
Metriorhynchus ? moreli Deslongchamps 1867
1 specimen
"perhaps in a large second copy [of M. moreli] in the Münich collection"
Metriorhynchus jaekeli Schmidt 1904
synonym of Thalattosuchus superciliosus
Reptilia - Plesiosauria - Cryptoclididae
Cryptoclidus oxoniensis (Phillips 1871)
nomen dubium belonging to Cryptoclidus
Muraenosaurus leedsi (Seeley 1874)
corrected as Muraenosaurus leedsii
Reptilia - Plesiosauria - Pliosauridae
Pliosaurus grandis (Owen 1840)
original and current combination Plesiosaurus grandis
Pliosaurus ferox (Sauvage 1873)
original and current combination Liopleurodon ferox
Peloneustes philarchus (Seeley 1869)
Reptilia - Ophthalmosauridae
Ophthalmosaurus icenicus Seeley 1874
Actinopteri - Pachycormiformes - Pachycormidae
Pachycormus macropomus Agassiz 1843
Chondrichthyes - Hybodontiformes - Acrodontidae
Asteracanthus ornatissimus Agassiz 1836
Cephalopoda - Ammonitida - Aspidoceratidae
Aspidoceras perarmatum (Sowerby 1822)
recombined as Euaspidoceras perarmatum
Cephalopoda - Belemnitida - Belemnopseidae
Belemnites hastatus Blainville 1808
recombined as Belemnopsis hastata
see common names

Geography
Country:United Kingdom State/province:England County:Cambridgeshire
Coordinates: 52.6° North, 0.2° West (view map)
Paleocoordinates:42.7° North, 9.7° East
Basis of coordinate:estimated from map
Altitude:18 meters
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Middle Jurassic
Stage:Callovian 10 m.y. bin:Jurassic 5
Key time interval:Middle Callovian
Age range of interval:165.30000 - 161.50000 m.y. ago
Stratigraphy
Geological group:Ancholme Formation:Oxford Clay Member:Peterborough
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: carbonaceous mudstone
Includes fossils?Y
Lithology description: "The Lower Oxford Clay is composed predominantly of organic-rich mudstones that on exposure rapidly develop a shale-like fissility" (Hudson & Martill 1991, p. 20-21)
Environment:offshore indet.
Geology comments: "accumulated in a wide, shallow (30–50 m deep) epeiric sea"
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Fragmentation:occasional
Spatial resolution:allochthonous
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collectors:A. N. Leeds
Collection method comments: GPIT: Institut für Geologie und Paläontologie, Universität Tübingen
Metadata
Database number:133067
Authorizer:R. Benson Enterer:R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:2012-09-01 02:26:45 Last modified:2014-08-05 09:46:06
Access level:the public Released:2012-09-01 02:26:45
Creative Commons license:CC BY
Reference information

Primary reference:
42839. G. von Arthaber. 1906. Beiträge zur Kenntnis der Organisation und der Anpassungserscheinungen des genus Metriorhynchus. Beiträge zur Paläontologie und Geologie Österreich-Ungarns und des Orients 19(4):287-320 [R. Benson/R. Benson]

Secondary references:

30975 E. T. Leeds. 1956. In W. E. Swinton (ed.), The Leeds Collection of Fossil Reptiles from the Oxford Clay of Peterborough xi-104 [R. Butler/R. Butler/M. Carrano]
46063 D. M. Martill and J. D. Hudson. 1991. Fossils of the Oxford Clay 1-286 [R. Benson/R. Benson/R. Benson]
46676 P. M. Sander. 2000. Ichthyosauria: their diversity, distribution and phylogeny. Palaeontologische Zeitschrift 74(1/2):1-35 [P. Mannion/J. Tennant]