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...ndrales]], some of which grew over {{Convert|40|m|ft}} in height, although extant lycophytes are relatively small plants.<ref>{{Cite book|title=Biology and e ...flap-like extensions of the stem ("enations") rather than leaves, whereas extant lycophyte species have [[microphyll]]s, leaves that have only a single vasc ...

...species in seven families, and a [[fossil record]] extending back to the [[Devonian]]. They differ from related animals, such as [[Caridea]] and [[Stenopodidea ...ndage]]s arising from the head are the [[antenna (biology)|antennae]]; the first pair are [[biramous]] (having two [[flagellum|flagella]]), except in [[Luci ...

....| title = First Occurrence of ''Orthotheca'' Novák, 1886 (Hyolitha, Early Devonian) in North America| journal = Journal of Paleontology| volume = 83| issue = Because hyoliths are extinct and do not obviously resemble any [[Extant taxon|extant]] group, it has long been unclear which living group they are most closely ...

...mp]], [[clam shrimp]], [[Diplostraca]] (or Cladocera), [[Notostraca]], the Devonian ''[[Lepidocaris]]'' and possibly the Cambrian ''[[Rehbachiella]]''. They ar Lipostraca contains a single extinct Early Devonian species, ''[[Lepidocaris|Lepidocaris rhyniensis]]'',<ref>{{cite book |autho ...

...|J-B. Lamarck]], 1801<ref name="Nielsen2012">{{cite journal |last=Nielsen |first=C. |date=July 2012 |title=The authorship of higher chordate taxa |journal=[ ...saur]]s appeared, the latter giving rise to [[bird]]s in the [[Jurassic]]. Extant species are roughly equally divided between fishes of all kinds, and [[Tetr ...

...an]] ([[Fortunian]])–[[Holocene|Present]]<ref>{{Cite journal |last=Maletz |first=Jörg |last2=Beli |first2=Elena |date=2018-01-22 |title=Treatise Online no. ...first4=J. |title=Phylogenetic analysis reveals that ''Rhabdopleura'' is an extant graptolite |journal=Lethaia |year=2013 |volume=46 |number=1 |pages=34–56 |d ...

...ditor2-last=Denton |editor2-first=John S.S. |editor3-last=Janvier |editor3-first=Philippe}}</ref> ...ds-supplements/records/unusual-new-fossil-shark-pisces-chondrichthyes-late-devonian-so |journal=Records of the Western Australian Museum |volume=57 |pages=151– ...

...hun |last3=Schneider |first3=Harald |year=2011 |title=A linear sequence of extant families and genera of lycophytes and ferns |journal=Phytotaxa |volume=19 | ...|last1=Hao |first1=Shougang |last2=Xue |first2=Jinzhuang |title=The Early Devonian Posongchong Flora of Yunnan: A Contribution to an Understanding of the Evol ...

| fossil_range = [[Early Devonian]] – [[Recent]],<ref name="ref4" /> {{fossil range|409|0}} ...[[Class (biology)|class]] '''Actinistia'''.<ref>{{Cite book |last=Nelson |first=Joseph S. |title=Fishes of the World |date=16 March 2016 |publisher=John Wi ...

...s primarily composed of [[cartilage]]. The vast majority of [[extant taxon|extant]] [[fish]] are members of Osteichthyes, being an extremely diverse and abun ...ray-finned fish]] ([[Actinopterygii]], which makes up the vast majority of extant fish) and the [[lobe-finned fish]] ([[Sarcopterygii]], which gave rise to a ...

...unstalked forms, called '''feather stars'''<ref>{{Cite book |last=Gordon |first=D.P. |title=New Zealand inventory of biodiversity: 1. Kingdom Animalia: Rad ...onship.<ref>{{cite journal |hdl=2027.42/75509 |title=Infestation of Middle Devonian (Givetian) camerate crinoids by platyceratid gastropods and its implication ...

...last4=Shen |first4=Y. |last5=Zhu |first5=M. |year=2021 |title=The Silurian-Devonian boundary in East Yunnan (South China) and the minimum constraint for the lu ...terranean river|subterranean water]]s to the highest [[mountain stream]]s. Extant species can range in size from ''[[Paedocypris]]'', at {{cvt|8|mm|in|1}}, t ...

{{Short description|Clade of the first four-limbed vertebrates and their descendants}} ...r=CRC Press|year=2020|isbn=978-1-138-33293-5|editor-last=de Queiroz|editor-first=K.|location=Boca Raton|pages=759–764|language=|chapter=''Tetrapoda'' B. Hat ...

| fossil_range = {{fossil range|409|66|latest=Danian}} Early [[Devonian]] ([[Emsian]]) - earliest [[Paleocene]] ([[Danian]]) <br> ...The earliest ammonoids appeared during the [[Emsian]] stage of the Early [[Devonian]], around 410-408 million years ago, with the last [[species]] vanishing du ...

The teeth-like fossils of the conodont were first discovered by [[Heinz Christian Pander]] and the results published in [[Sai It was only in the early 1980s that the first fossil evidence of the rest of the animal was found (see below). In the 199 ...

| fossil_range = {{Fossil range|Late Devonian|0|Middle [[Devonian]]{{sfn|Stein et al|2007}} – [[Holocene|Present]]}} ...t uncoil and expand into [[frond]]s. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the [[Poly ...

...ge = {{Fossil range|earliest=Devonian |Middle Jurassic | Recent}} Possible Devonian and Permian records ...' or '''wheel [[animalcules]]''',<ref name="Howey">{{cite web |last=Howey |first=Richard L. |year=1999 |title=Welcome to the Wonderfully Weird World of Roti ...

| image_caption = Representatives of the 12 extant orders of arachnids ...ons]].<ref>{{cite book |editor1-first=Joel |editor1-last=Cracraft |editor2-first=Michael |editor2-last=Donoghue |title=Assembling the Tree of Life|url=https ...

...550431 |lang=en}}</ref><ref name=":4">{{Cite journal |last=Lerosey-Aubril |first=Rudy |last2=Ortega-Hernández |first2=Javier |date=2026-04-01 |title=A cheli ....1007/s10886-011-0009-2 | volume=37 | issue=9 | title=Tasty but protected--first evidence of chemical defense in oribatid mites | year=2011 | journal=J Chem ...

...except [[Antarctica]]. There are over 2,500 described [[species]], with 22 extant (living) families recognized to date. Their [[Taxonomy (biology)|taxonomy]] ...w ''ʿaqrāb''" (עַקרָב).<ref name="Camagni 2017">{{cite book |last=Camagni |first=Francesco |title=The Greeks had a word for it. an outline of the attestatio ...