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| title = Chitinozoan chains and cocoons from the Upper Ordovician Soom Shale lagerstatte, South Africa; implications for affinity Well-preserved specimens were discovered in the [[Soom shale]] of [[South Africa]] in 1994.<ref name=Gabbott1995>{{cite journal|title=A ...

* Since cephalopod fossils from the [[Cambrian]] and Early [[Ordovician]] Periods are rare and usually | title = Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules ...

External ornamentation is often preserved on the surface of the fossils, in the form of hairs, loops or protrusions, which are sometimes as large a ...2019-08-14|title=Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggs|url= |journal=Procee ...

...| bibcode = 2008JPal...82..543B | s2cid = 86083492 }}</ref> although trace fossils from the earlier [[Ediacaran]] have been suggested to have been made by the ...Orthoconic cephalopods and associated fauna from the late Ordovician Soom Shale Lagerstatte, South Africa | journal = Palaeontology | volume = 42 | pages = ...

The teeth-like fossils of the conodont were first discovered by [[Heinz Christian Pander]] and the ...ce of the rest of the animal was found (see below). In the 1990s exquisite fossils were found in South Africa in which the soft tissue had been converted to c ...

...preserved as [[small carbonaceous fossil|carbonaceous]] or [[Small Shelly Fossils|mineralized]] [[microfossils]] in Cambrian strata.<ref name=":15">{{cite jo | title = Beyond the Burgess Shale: Cambrian microfossils track the rise and fall of hallucigeniid lobopodians ...

...leatina: an enigmatic Ediacaran–Cambrian survivor among small carbonaceous fossils (SCFs)|journal=Palaeontology|year=2020|volume=63|issue=5|language=en|pages= ...A commonly applied cutoff point between "micro" and [[macrofossil|"macro" fossils]] is 1&nbsp;mm. Microfossils may either be complete (or near-complete) orga ...

...|title=Lamellate book-gills in a late Ordovician eurypterid from the Soom Shale, South Africa: Support for a eurypterid-scorpion clade |journal=[[Lethaia]] ...ef name="WonderfulLifeP105">{{cite book |title=Wonderful Life: The Burgess Shale and the Nature of History |location=New York, NY |publisher=W.W. Norton; Hu ...

{{Short description|Sedimentary deposit with well-preserved extraordinary fossils}} ...n.JPG|thumb|Well-preserved basal arthropod ''[[Opabinia]]'' from [[Burgess Shale]] ''Lagerstätte'' (Middle [[Cambrian]]) ]] ...

Evidence of original coloration has been detected in cephalopod fossils dating as far back as the [[Silurian]]; these orthoconic individuals bore c ...> Radulae are usually difficult to detect, even when they are preserved in fossils, as the rock must weather and crack in exactly the right fashion to expose ...