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autapomorphy
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autapomorphy
autapomorphy, n. Taxon. Brit. /ɔːˈtapəmɔːfi/, U.S. /ɔˈtæpəˌmɔrfi/, /ɑˈtæpəˌmɔrfi/ [‹ auto- comb. form1 + apo- prefix + -morphy comb. form. Compare slightly later apomorphy n.] An autapomorphic character.1959 Systematic Zool. 8 118/1 Characters are plesiomorphic..or are apomorphic..and their value fo...
Oxford English Dictionary
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Autapomorphy
An example of an autapomorphy can be described in modern snakes. Apomorphy unique to a given taxon is autapomorphy.
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autapomorphous
autapomorphous, a. Taxon. Brit. /ˌɔːtəpəˈmɔːfəs/, U.S. /ˌɔdəpəˈmɔrfəs/, /ˌɑdəpəˈmɔrfəs/ [‹ auto- comb. form1 + apomorphous adj., after autapomorphy n.] = autapomorphic adj.1966 D. D. Davis & R. Zangerl tr. W. Hennig Phylogenetic Systematics ii. 90 The apomorphous features characteristic for a partic...
Oxford English Dictionary
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Apomorphy and synapomorphy
Apomorphy unique to a given taxon is autapomorphy. If lost in all but one, it can be hard to distinguish from an autapomorphy.
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apomorphy
apomorphy, n. Taxon. Brit. /ˈapə(ʊ)mɔːfi/, U.S. /ˈæpə(ʊ)ˌmɔrfi/ [‹ apo- prefix + -morphy comb. form, after apomorphic adj., apomorphous adj. Compare slightly earlier autapomorphy n.] An apomorphous character.1969 Systematic Zool. 18 129/2 For the proof of a sister-group relation, apomorphies are to ...
Oxford English Dictionary
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Turanosuchus
The authors noted that the fossil material attributed to T. aralensis demonstrates a single autapomorphy of K. extensus among paralligatorids (restriction
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autapomorphic
autapomorphic, a. Taxon. Brit. /ˌɔːtəpəˈmɔːfɪk/, U.S. /ˌɔdəapəˈmɔrfɪk/, /ˌɑdəpəˈmɔrfɪk/ [‹ auto- comb. form1 + apomorphic adj., after autapomorphy n. Compare earlier autapomorphous adj.] Designating or relating to a novel characteristic that has evolved in only one species or lineage within a taxon....
Oxford English Dictionary
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Ratchasimasaurus
Description
One autapomorphy (unique characteristic) of Ratchasimasaurus is its elongated and flat ramus of the dentary.
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Brachyprosopus
However, it can be distinguished by the autapomorphy of a curled lateral edge of the squamosal that forms a lateral wall of the external adductor fossa
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Exafroplacentalia
Classification
However, this classification makes the autapomorphy (character shared only among Exafroplacentalia) dubious: it is hard to classify a group
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Barasaurus
This trait is considered an autapomorphy of both genera separately, as Broomia is easily distinguished from Barasaurus on the basis of several other characters mesosaurs, however their feet are easily distinguishable on the basis of other traits, suggesting that this unusual formula represents an additional autapomorphy
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Ctenostylidae
the principal reason for their inclusion in the Pyrgotidae was the absence of ocelli, a feature originally thought to be a unique defining feature ("autapomorphy
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Stratesaurus
GSM 26035 was referred to S. taylori because it shares one autapomorphy and other characters with the holotype specimen. In the front part of the neck, there are strongly developed backwards-pointing projections on the prezygapophyses, an autapomorphy (unique derived feature
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Mistralazhdarcho
One of these was an autapomorphy, a unique derived character. A second trait is a possible autapomorphy only. The tip of the lower jaws is somewhat curved to below.
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Bellubrunnus
A fourth autapomorphy is that the thighbone lacks a "neck" between its head and the shaft. Awaiting confirmation by a second specimen, the trait has not been formally indicated as an autapomorphy.
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