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: Weald Clay Group, 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

Insecta
 Hemiptera - Matsucoccidae
Eomatsucoccus andrewi n. sp.3 Koteja 1999 pine bark scales
BMB 018955
 Hemiptera - Cicadellidae
Cicadellidae indet. Latreille 1825 leafhopper
 Hemiptera -
Heteroptera indet. Latreille 1810 true bug
 Hemiptera - Progonocimicidae
Valdiscytina picta n. sp.2 Popov 1993 true bug
BMB 018463 (In. K1,a)
Ildavia incompleta n. sp.2 Popov 1993 true bug
BMB 018460 (In. K1,b)
 Blattodea - Mesoblattinidae
Mesoblattinidae indet. Handlirsch 1906 cockroach
 Orthoptera -
Hagloidea indet. Handlirsch 1906 grasshopper
 Orthoptera - Elcanidae
Elcanidae indet. Handlirsch 1906 grasshopper
 Hymenoptera - Angarosphecidae
Pompilopterus keymerensis n. sp.5 Rasnitsyn and Jarzembowski 1998 apoid wasp
BMB 018517/8 (coll. A.J. Ross)
 Hymenoptera - Sphecidae
Sphecidae indet. Latreille 1802 digger wasp
 Dicondylia -
Coleoptera indet. Linnaeus 1758 beetle
 Coleoptera - Cupedidae
Cupedidae indet. Laporte 1836 reticulated beetle
Chalepocarabus aff. elongatus4 Brodie 1845 reticulated beetle
BMB 020430
Brochocoleus tobini n. sp.1 Jarzembowski et al. 2013 reticulated beetle
BMB 020459(60) (formerly ID as Chalepocarabus elongatus)
 Dicondylia -
Mecoptera indet. Packard 1886 scorpionfly
 Diptera - Sciaridae
Sciaridae indet. Billberg 1820 dark-winged fungus gnat
BMB 018954 coll. A. J. Ross
 Diptera -
 Dicondylia -
Trichoptera indet. Kirby 1815 caddisfly
Neuroptera indet. Linnaeus 1758 lacewing
 Odonata - Aeschnidiidae
? Aeschnidiidae indet. Handlirsch 1906 small darner
Branchiopoda
 Diplostraca - Antronestheriidae
Antronestheriidae indet. Chen and Hudson 1991 clam shrimp
Malacostraca
 Isopoda -
Isopoda indet. Latreille 1817 isopod
Ostracoda
  -
Ostracoda indet. Latreille 1802 ostracod
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Chondrichthyes
 Hybodontiformes - Hybodontidae
"Hybodus basanus" = Egertonodus basanus
"Hybodus basanus" = Egertonodus basanus Egerton 1845 elasmobranch
Actinopteri
 Lepisosteiformes -
Lepidotes sp. Agassiz 1843 gar
Reptilia
 Testudines - Pleurosternidae
Pleurosternon sp. Owen 1853 turtle
 Testudinata - Helochelydridae
Tretosternon sp. Owen 1842 turtle
 Saurischia -
 Neornithischia -
Iguanodon sp. Mantell 1825 bird foot dinosaur
 Loricata - Goniopholididae
Goniopholis sp. Owen 1842 crocodilian
 Loricata -
Bernissartia sp. Dollo 1883 crocodilian
 Anthophyta -
Pinopsida
 Pinales -
Brachyphyllum sp. Brongniart 1828
Pteridopsida
 Gleicheniales - Matoniaceae