A morphometric approach to conch ontogeny of Cymaclymenia and related genera (Ammonoidea, Late Devonian) Author Klein, C. Author Korn, D. text Fossil Record 2014 2014-02-20 17 1 1 32 http://dx.doi.org/10.5194/fr-17-1-2014 journal article 294427 10.5194/fr-17-1-2014 803f61fd-e54c-4638-93fc-149cee5d1f28 2193-0074 10965299

Table 2. Conch ontogeny of Procymaclymenia ebbighauseni n. sp. from the Anti-Atlas of Morocco.

dm	Conch shape	Whorl cross-section shape	Whorl expansion
2 mm	thinly discoidal; subevolute (ww / dm ∼ 0.38; uw / dm = 0.40–0.45)	weakly depressed; weakly embracing (ww / wh = 1.00–1.25; IZR ∼ 0.10)	moderate (WER ∼ 1.90)
6 mm	thinly discoidal; subevolute (ww / dm ∼ 0.30; uw / dm = 0.40–0.45)	weakly compressed; weakly embracing (ww / wh ∼ 0.85; IZR ∼ 0.20)	high (WER ∼ 2.05)
15 mm	thinly discoidal; subinvolute (ww / dm ∼ 0.28; uw / dm ∼ 0.28)	weakly compressed; weakly embracing (ww / wh ∼ 0.62; IZR ∼ 0.28)	high (WER ∼ 2.20)
30 mm	thinly discoidal; subinvolute (ww / dm ∼ 0.28; uw / dm ∼ 0.24)	weakly compressed; weakly embracing (ww / wh ∼ 0.60; IZR = 0.25–0.35)	high (WER ∼ 2.20)