Datoteka:Spindle diagram.jpg

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Opis
English: Evolution of Vertebrate from the Cambrium to the present at a class level as a traditional spindle diagram. The width of the spindle represents the number of families as a rough estimate of diversity. The diagram is based on Benton, M. J. (1998) The quality of the fossil record of vertebrates. P. 269–303, in Donovan, S. K. and Paul, C. R. C. (eds), The adequacy of the fossil record, Fig. 2. Wiley, New York, 312 p.

The figures representing classes are (from left): Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves and Mammalia. The two extinct classes are Placodermi and Acanthodii. All classes interpreted traditionally.

Bentons notes to his own tree: Number of families is an imperfect measure of diversity. Reptilia in particular should probably have been shown as far more diverse in the Mesozoic.
Datum
Izvor Vlastito djelo
Autor Petter Bøckman
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Public domain Ja, vlasnik autorskog prava ovog djela, objavljujem ovaj rad u javno vlasništvo. Ovo se primjenjuje u cijelom svijetu.
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Datum/vrijemeSmanjeni pregledDimenzijeKorisnikKomentar
trenutno22:21, 4 februar 2011Smanjeni pregled verzije na dan 22:21, 4 februar 2011734 × 509 (94 KB)Petter BøckmanSlight cropping
22:12, 4 februar 2011Smanjeni pregled verzije na dan 22:12, 4 februar 2011800 × 567 (94 KB)Petter Bøckman{{Information |Description ={{en|1=Evolution of Vertebrate from the Cambrium to the present at a class level as a traditional spindle diagram. The with of the spindle represent number of families, as a rough estimate of diversity. The diagram is based

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