Kimberella quadrata is a fossil animal from the Ediacaran or Vendian fauna. The Ediacaran Period (from the Ediacara Hills of South Australia) is the last geological period of the Neoproterozoic Era, just before the Cambrian. ... Image File history File linksMetadata No higher resolution available. ... The conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. ... FOSSIL is a standard for allowing serial communication for telecommunications programs under DOS. FOSSIL is an acronym for Fido Opus Seadog Standard Interface Layer. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... For other uses, see Animal (disambiguation). ... Classes Caudofoveata Aplacophora Polyplacophora Monoplacophora Bivalvia Scaphopoda Gastropoda Cephalopoda † Rostroconchia † Helcionelloida † ?Bellerophontidae The molluscs (British spelling) or mollusks (American spelling) are members of the large and diverse phylum Mollusca, which includes a variety of familiar animals well-known for their decorative shells or as seafood. ... FOSSIL is a standard for allowing serial communication for telecommunications programs under DOS. FOSSIL is an acronym for Fido Opus Seadog Standard Interface Layer. ... Dickinsonia costata, an Ediacaran organism of unknown affinity, with a quilted appearance. ...

This fossil varies from 3 mm to 10 cm in size. It is oval in shape with larger ones being elongated more. The long axis has a raised ridge, and the edge is crenulated or scalloped with 44 lobes, though some always appear missing. A hump occurs in the middle axis of the fossil.

The organism this fossil represents was originally interpreted as a box jellyfish (Cubozoa).^{[citation needed]} It is now believed to be a bilaterian organism, with bilateral symmetry. It may be a mollusc with a non mineralised univalve shell, although sceptics remain.^[1] Orders see text Box jellyfish, also known as sea wasps, are jellyfish-like creatures found in Australia and the Philippines, which can be extremely deadly, with venom in their tentacles. ... Illustration of the different types of symmetry of Life Forms On Earth. ... Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ... Subclass Subclass Eogastropoda     Patellogastropoda Subclass Orthogastropoda   Superorder Cocculiniformia   Superorder Hot Vent Taxa     Neomphaolida   Superorder Vetigastropoda   Superorder Neritaemorphi     Neritopsina   Superorder Caenogastropoda     Architaenioglossa     Sorbeoconcha   Superorder Heterobranchia     Heterostropha     Opisthobranchia     Pulmonata The gastropods, gasteropods, or univalves, are the largest and most successful class of mollusks, with 60,000-75,000 extant species known, comprising... Various seashells Danielle A shell is the hard, rigid outer covering, or integument, allanimals. ...

Kimberella has been found in association with a trace fossil called Radulichnus, which appears to show the scrapes made by a mollusk-type radula on the sea floor. This association supports the molluscan affinities of Kimberella. There are also long trails from Ediacaran strata that may be the trace of Kimberella. A fossilized dinosaur footprint at Clayton Lake State Park, New Mexico. ... Transverse view of the buccal cavity with the radula Radula types chart. ... For other uses, see strata (novel) and strata title. ...

This species was first described by Glaessner and Daily in 1959. Its fossils are found both in the Ediacara Hills of South Australia and in the Ust’ Pinega Formation in the White Sea region of Russia. In the White Sea area the fossils are found with Tribrachidium, Dickinsonia, meandering trace fossil trails and algae. The strata here have been dated as 555 mya. Fan shaped scratches are found along with these fossils. This has been interpreted as marks left by a pair of hook shaped teeth on the end of a proboscis. Kimberella likely used these teeth to scratch bacteria off the surface mat on the sea bed, raking the detritus into its mouth. Martin Fritz Glaessner (born 25 December 1906 in Aussig in the former Austro-Hungarian Empire, died 23 November 1989 in Melbourne, Australia) was a geologist and historical biologist. ... Year 1959 (MCMLIX) was a common year starting on Thursday (link will display full calendar) of the Gregorian calendar. ... Ediacara Hills is a hill range in the northern Flinders Ranges of South Australia, around 650km north of Adelaide. ... Capital Adelaide Government Constitutional monarchy Governor Marjorie Jackson-Nelson Premier Mike Rann (ALP) Federal representation  - House seats 11  - Senate seats 12 Gross State Product (2004-05)  - Product ($m)  $59,819 (5th)  - Product per capita  $38,838/person (7th) Population (End of September 2006)  - Population  1,558,200 (5th)  - Density  1. ... Map of the White Sea Two satellite photos of the White Sea The White Sea (Russian: ) is an inlet of the Barents Sea on the North Western coast of Russia. ... Few fossils of Ediacaran animals are so compellingly bizarre as this unusual disc-shaped form with three-part (triradial) symmetry. ... Species Dickinsonia is an ancient ovoid fossil with somewhat radial tubes from a (sometimes missing) central ridge. ... Phyla Actinobacteria Aquificae Chlamydiae Bacteroidetes/Chlorobi Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Lentisphaerae Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Verrucomicrobia Bacteria (singular: bacterium) are unicellular microorganisms. ...

The Australia Post issued a 50 cent stamp featuring Kimberella on 21 April 2005 in a series entitled "Creatures of the Slime". Australia Post is the government-owned postal service of Australia. ... is the 111th day of the year (112th in leap years) in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ...

References

• Glaessner, Martin and Daily, B. (1959). The Geology and Late Precambrian Fauna of the Ediacara Fossil Reserve. Records of the South Australian Museum 13: 369-401.
• Erwin, Douglas H., and Eric H. Davidson. 2002. The last common bilaterian ancestor. Development. 129, 3021-3032.[1]
• Fedonkin, Mikhail A., and Waggoner, Benjamin M. (1997). The late Precambrian fossil Kimberella is a mollusc-like bilaterian organism. Nature 338: 868-871.

External links

• Kimberella quadrata
• image from UCMP