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TaxNo: 5331
Family Marathonitidae
Taxonomy
Morphology
Suborder:
Goniatitina
Superfamily:
Marathonitoidea
Family:
Marathonitidae
Qualifier:
fa
Author:
Ruzhencev 1938,p.254
Lower Boundary:
RUS Miachkovian--Zhigulian [MYA--ZHI], 306.5 million years
Upper Boundary:
RIT Amarassi beds top, 258 million years
Notes
Figures
(0)
Sub categories
(19)
Species
(71 / 54 valid)
Literature
(0)