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Rangeomorpha

Rangeomorpha

Synonyms
  • Ivesia was named by Boynton and Ford (1995) [COMMENTS: Homonym of Ivesia Torrey and Gray, 1857 (Rosacea).]. It is considered to be a form taxon. Its type is Ivesia lobata.

    It was replaced with Ivesheadia by Boynton and Ford (1996); it was considered a nomen vanum by Liu et al. (2011).
Synonymy list
YearName and author
1995Ivesia Boynton and Ford
2002Rangeomorpha Sepkoski
2008Rangeomorpha Hofmann et al. p. 16
2011Rangeomorpha Erwin et al.
2021Rangeomorpha Dunn et al.

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RankNameAuthor
kingdomAnimalia()
—Eumetazoa
RankNameAuthor
orderRangeomorpha
orderRangeomorpha

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

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G. †Avalofractus Narbonne et al. 2009
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†Avalofractus abaculus Narbonne et al. 2009
G. †Beothukis Brasier and Antcliffe 2009
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†Beothukis mistakensis Brasier and Antcliffe 2009
G. †Bradgatia Boynton and Ford 1995
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†Bradgatia linfordensis Boynton and Ford 1995
Unr. †Charnida Narbonne et al. 2009
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G. †Culmofrons Laflamme et al. 2012
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†Culmofrons plumosa Laflamme et al. 2012
Fm. †Charniidae Glaessner 1979
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G. †Aninoides Rosse‐Guillevic et al. 2025
G. †Charnia Ford 1958
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†Charnia ewinoni Pasinetti et al. 2025
†Charnia gracilis Wu et al. 2024
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Invalid names: Rangea sibirica Sokolov 1972 [synonym]
†Charnia grandis Glaessner and Wade 1966
†Charnia masoni Ford 1958
+
Invalid names: Zolotytsia biserialis Fedonkin 1981 [synonym]
†Charnia siberica Sokolov 1972
Invalid names: Blackbrookia Boynton and Ford 1995 [synonym], Pseudovendia Boynton and Ford 1979 [synonym], Shepshedia Boynton and Ford 1995 [synonym]
G. †Fractofusus Gehling and Narbonne 2007 [Spindle]
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†Fractofusus andersoni Gehling and Narbonne 2007 [Spindle]
†Fractofusus misrai Gehling and Narbonne 2007 [Spindle]
G. †Frondophyllas Bamforth and Narbonne 2009
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†Frondophyllas grandis Bamforth and Narbonne 2009
G. †Hapsidophyllas Bamforth and Narbonne 2009
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†Hapsidophyllas flexibilis Bamforth and Narbonne 2009
G. †Parviscopa Hofmann et al. 2008
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†Parviscopa bonavistensis Hofmann et al. 2008
G. †Pectinifrons Bamforth et al. 2008 [Pectinate]
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†Pectinifrons abyssalis Bamforth et al. 2008 [Pectinate]
G. †Plumeropriscum Mason and Narbonne 2016
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†Plumeropriscum hofmanni Mason and Narbonne 2016
G. †Primocandelabrum Hofmann et al. 2008
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†Primocandelabrum hiemaloranum Hofmann et al. 2008
Invalid names: Hiemalora Fedonkin 1982 [synonym]
G. †Rangea Gurich 1930
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†Rangea schneiderhoehni Gurich 1929
G. †Trepassia Narbonne et al. 2009
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†Trepassia wardae Narbonne and Gehling 2003
G. †Vinlandia Brasier et al. 2012
+
†Vinlandia antecedens Laflamme et al. 2007
Invalid names: Ivesia Boynton and Ford 1995 [nomen vanum]
Diagnosis
ReferenceDiagnosis
D. H. Erwin et al. 2011Rangeomorphs are a monophyletic clade of modular organisms composed of unique self-similar leaf-like structures termed frondlets. These frondlets consist of a repetitive branching pattern that is identical throughout at least three orders of branching. At least two separate branching architectures represent separate clades within the rangeomorphs: Charnia-type and Rangea-Type (93). In many species, modular units are acquired early in ontogeny and inflate in size with growth. The repeated branching of the rangeomorph frondlet results in a significant increase in surface area, which was necessary for osmotrophy.