Keymer Tile Works (Cretaceous of the United Kingdom)

Where: England, United Kingdom (52.7° N, 1.4° W: paleocoordinates 43.3° N, 8.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lower Member (Weald Clay Formation), Late/Upper Hauterivian (136.4 - 130.0 Ma)

• lower Weald Clay

• bed-level stratigraphic resolution

Environment/lithology: pond; lenticular, gray, green mudstone and lenticular, sideritic siltstone

• The Weald Clay was deposited in a non-marinelacustrine/lagoonal/mudplain environment in the subsiding Wealden basin (Allen, 1981, 1990). The Keymer sediments illustrate a change in depositional environment from over-bank to generally low-energy fluvio Iacustrine conditions.
• Insects are abundant and can be found in sideritic and rarely, phosphatic mudstone and siltstone lenses. Unfortunately, most specimens were recovered from lenses that were not in situ. A few came from in situ lenses which can be seen projecting from the weathered south-west face. The lowest horizon is generally barren. Some of the loose insect-bearing lenses probably came from other horizons between the ripple-bedded micaceous sandstone and BGS Bed 3a. A few insects, consisting of beetle wing cases and cockroach forewings. have been found in the clay above the ripple-bedded sandstone

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: E. Cook and A. J. Ross. 1996. The stratigraphy, sedimentology and palaeontology of the Lower Weald Clay (Hauterivian) at Keymer Tileworks, West Sussex, southern England. Proceedings of the Geologists' Association 107:231-239 [M. Clapham/J. Karr]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 119697: authorized by Matthew Clapham, entered by Jered Karr on 31.10.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Polypodiopsida
 Gleicheniales - Polypodiidae
Weichselia reticulata
Weichselia reticulata Stokes and Webb 1824
Equisetopsida
 Pinidae - Pinidae
Brachyphyllum sp.
Brachyphyllum sp. Brongniart 1828
 Anthophyta -
Bevhalstea pebja
Chondrichthyes
 Hybodontiformes - Hybodontidae
"Hybodus basanus" = Egertonodus basanus
"Hybodus basanus" = Egertonodus basanus Egerton 1845 elasmobranch
Actinopteri
 Lepisosteiformes -
Lepidotes sp.
Lepidotes sp. Agassiz 1832 gar
Reptilia
 Theropoda -
Theropoda indet.
 Ornithischia -
Iguanodon sp.
Iguanodon sp. Mantell 1825 ornithopod
 Loricata - Goniopholididae
Goniopholis sp.
Goniopholis sp. Owen 1842 crocodilian
 Loricata -
Bernissartia sp.
Bernissartia sp. Dollo 1883 crocodilian
 Testudinata - Pleurosternidae
Pleurosternon sp.
Pleurosternon sp. Owen 1853 turtle
 Testudinata - Helochelydridae
Tretosternon sp.
Tretosternon sp. Owen 1842 turtle
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
Branchiopoda
 Diplostraca - Antronestheriidae
Antronestheriidae indet.
Antronestheriidae indet. Chen and Hudson 1991 clam shrimp
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Malacostraca
 Eumalacostraca -
Isopoda indet.
Isopoda indet. Latreille 1817 isopod
Insecta
 Diptera - Sciaridae
Sciaridae indet.
Sciaridae indet. Billberg 1820 dark-winged fungus gnat
BMB 018954 coll. A. J. Ross
 Diptera -
Mycetophiloidea indet.
Mycetophiloidea indet. Newman 1834 fly
 Hemiptera - Matsucoccidae
Eomatsucoccus andrewi n. sp.3
Eomatsucoccus andrewi n. sp.3 Koteja 1999 pine bark scales
BMB 018955
 Hemiptera -
Heteroptera indet.
Heteroptera indet. Latreille 1810 true bug
 Hemiptera - Progonocimicidae
Ildavia incompleta n. sp.2, Valdiscytina picta n. sp.2
Ildavia incompleta n. sp.2 Popov 1993 true bug
BMB 018460 (In. K1,b)
Valdiscytina picta n. sp.2 Popov 1993 true bug
BMB 018463 (In. K1,a)
 Hemiptera - Cicadellidae
Cicadellidae indet.
Cicadellidae indet. Latreille 1825 leafhopper
 Orthoptera -
Hagloidea indet.
Hagloidea indet. Handlirsch 1906 grasshopper
 Orthoptera - Elcanidae
Elcanidae indet.
Elcanidae indet. Handlirsch 1906 grasshopper
 Blattodea - Mesoblattinidae
Mesoblattinidae indet.
Mesoblattinidae indet. Handlirsch 1906 cockroach
 Hymenoptera - Angarosphecidae
Pompilopterus keymerensis n. sp.5
Pompilopterus keymerensis n. sp.5 Rasnitsyn and Jarzembowski 1998 apoid wasp
BMB 018517/8 (coll. A.J. Ross)
 Hymenoptera - Sphecidae
Sphecidae indet.
Sphecidae indet. Latreille 1802 digger wasp
 Dicondylia -
Trichoptera indet., Mecoptera indet., Coleoptera indet.
Trichoptera indet. Kirby 1815 caddisfly
Mecoptera indet. Packard 1886 scorpionfly
Coleoptera indet. Linnaeus 1758 beetle
 Coleoptera - Cupedidae
Cupedidae indet.
Cupedidae indet. Laporte 1836 reticulated beetle
 Coleoptera - Ommatidae
"Chalepocarabus aff. elongatus" = Omma elongatum4, Brochocoleus tobini n. sp.1
"Chalepocarabus aff. elongatus" = Omma elongatum4 Brodie 1845 beetle
BMB 020430
Brochocoleus tobini n. sp.1 Jarzembowski et al. 2013 beetle
BMB 020459(60) (formerly ID as Chalepocarabus elongatus)
 Dicondylia -
Neuroptera indet.
Neuroptera indet. Linnaeus 1758 lacewing
 Odonata - Aeschnidiidae
? Aeschnidiidae indet.
? Aeschnidiidae indet. Handlirsch 1906 small darner
1Jarzembowski et al. 2013; 2Klimaszewski and Popov 1993; 3Koteja 1999; 4Ponomarenko 2006; 5Rasnitsyn et al. 1998