Английская Википедия:Cambridge Greensand
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Шаблон:Confuse Шаблон:Infobox rockunit The Cambridge Greensand is a geological unit in England whose strata are earliest Cenomanian in age.[1] It lies above the erosive contact between the Gault Formation and the Chalk Group in the vicinity of Cambridgeshire, and technically forms the lowest member bed of the West Melbury Marly Chalk Formation.[2] It is a remanié deposit, containing reworked fossils of late Albian age, including those of dinosaurs and pterosaurs.
Description
The lithology is made out of glauconitic marl, described as a "chalk mud", containing abundant ostracod, coccolith and foram remains, with a concentration of phosphatic nodules and bones at the base.[1][2]
Vertebrate paleofauna
Birds
Birds | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Images |
Enaliornis | E. barrette | Braincases, vertebrae, pelvis [and] limb elements[3] | This genus is the oldest known hesperornithine | ||
E sedgwicki | Hindlimb elements[3] | ||||
E. seeleyi | Assorted cranial and postcranial elements |
Dinosaurs
Ornithischians
Ornithischians | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Images |
Anoplosaurus | A. curtonotus | "Partial postcranium"[4] | |||
A. major | "Cervical vertebrae."[4] "Vertebrae."[5] | ||||
Acanthopholis | A. eucercus | "[Two] caudal centra."[4] | Nomen dubium | ||
A. platypus | "Phalanx, caudal centra."[4] | Nomen dubium | |||
A. macrocercus | "Osteoderms."[4] "Vertebrae, fragmentary skeleton elements."[5] | Reassigned to Syngonosaurus | |||
A. stereocercus | "Osteoderms."[4] "Vertebrae."[5] | Nomen dubium | |||
Eucercosaurus | E. tanyspondylus | "Vertebrae."[4] | |||
Trachodon | T. cantabrigiensis | "Dentary tooth."[6] | Nomen dubium |
Saurischians
Saurischians | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Images |
Macrurosaurus | M. semnus | "Caudal vertebrae"[7] | Titanosauriform sauropod or indeterminate macronarian |
Pterosaurs
Pterosaurs | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Images |
Amblydectes | A. crassidens | Jaw fragments | |||
A. eurygnathus | Jaw fragments | Possibly a junior synonym of A. crassidens[8] | |||
Camposipterus | C. colorhinus | Anterior rostra fragments | |||
C. nasutus | Partial rostrum | ||||
C. sedgwickii | Anterior rostrum | ||||
Draigwenia | D. platystomus | Anterior rostrum fragments | Formerly Amblydectes platystomus[8] | ||
Lonchodraco | L. machaerorhynchus | Reassigned to Ikrandraco machaerorhynchus | |||
L. microdon | Junior synonym of L. machaerorhynchus | ||||
Nicorhynchus | N. capito | Jaw fragments | Possibly synonomous with Coloborhynchus[9] | ||
Ornithocheirus | O. simus[10][11] | ||||
"Ornithocheirus" denticulatus | |||||
"Ornithocheirus" polyodon | |||||
Ornithostoma[12][13] | O. sedgwicki | Jaw fragments | Azhdarchoid pterosaur[13] |
Ichthyosaurs
Ichthyosaurs | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Images |
Cetarthrosaurus | C. walkeri[14] | ||||
Maiaspondylus | M. cantabrigiensis | ||||
Pervushovisaurus | P. campylodon | ||||
Sisteronia | S. seeleyi |
Lepidosauria
Lepidosauria | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Images |
Patricosaurus | P. merocratus[15] | Chimeric specimen |
Invertebrates
Ammonites
See also
References
- ↑ 1,0 1,1 Шаблон:Cite journal
- ↑ 2,0 2,1 Cambridge Greensand at BGS
- ↑ 3,0 3,1 "Table 11.1," in Weishampel, et al. (2004). Page 215.
- ↑ 4,0 4,1 4,2 4,3 4,4 4,5 4,6 "Table 17.1," in Weishampel, et al. (2004). Page 367.
- ↑ 5,0 5,1 5,2 "Table 19.1," in Weishampel, et al. (2004). Page 417.
- ↑ "Table 20.1," in Weishampel, et al. (2004). Page 443.
- ↑ "Table 13.1," in Weishampel, et al. (2004). Page 270.
- ↑ 8,0 8,1 Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Unwin D.M., 2001, "An overview of the pterosaur assemblage from the Cambridge Greensand (Cretaceous) of Eastern England", Mitteilungen aus dem Museum für Naturkunde in Berlin, Geowissenschaftliche Reihe 4: 189–221
- ↑ Шаблон:Cite journal
- ↑ 13,0 13,1 Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ P. M. Barrett and S. E. Evans. 2002. A reassessment of the Early Cretaceous reptile 'Patricosaurus merocratus' Seeley from the Cambridge Greensand, Cambridgeshire, UK. Cretaceous Research 23:231-240
- ↑ C. W. Wright and W. J. Kennedy. 1979. Origin and evolution of the Cretaceous micromorph ammonite family Flickiidae. Palaeontology 22:685-704
Категории:
- Английская Википедия
- Geologic formations of England
- Upper Cretaceous Series of Europe
- Cenomanian Stage
- Cretaceous England
- Marl formations
- Paleontology in England
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