Fig. 4: Comparison of the left tibia, fibula, tarsus, and digits of early tetrapods. | Communications Biology

Fig. 4: Comparison of the left tibia, fibula, tarsus, and digits of early tetrapods.

From: A Mississippian (early Carboniferous) tetrapod showing early diversification of the hindlimbs

Fig. 4: Comparison of the left tibia, fibula, tarsus, and digits of early tetrapods.

a Balanerpeton after 2, b Eucritta after 12, c Eldeceeon after 6, d Silvanerpeton after 4, e Westlothiana after 7, f Kirktonecta original, see 15 (the grey area marks the estimated position and extent of the tarsus), g Termonerpeton, h Pederpes after 24, i, Greererpeton after 27, j Caerorhachis after 31, k Archeria after 30, l Hylonomus after 28, m Tuditanus after 22, n Petrolacosaurus after 29. Drawn to the same tibial length apart from n. Scale bars 10 mm.

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