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 5. Conch ontogeny of Cymaclymenia lambidia n. sp. from the Anti-Atlas of Morocco.

dm	Conch shape	Whorl cross-section shape	Whorl expansion
2 mm	thickly discoidal; subevolute	weakly depressed; weakly embracing	moderate
	(ww / dm = 0.45–0.60; uw / dm = 0.38–0.42)	(ww / wh = 1.30–1.50; IZR ∼ 0.10)	(WER = 1.80–2.00)
6 mm	thickly discoidal; subevolute	weakly depressed; weakly embracing	high
	(ww / dm = 0.45–0.55; uw / dm = 0.35–0.40)	(ww / wh = 1.20–1.30; IZR = 0.20–0.25)	(WER = 2.00–2.15)
15 mm	thinly discoidal; subinvolute	weakly depressed; weakly embracing	high to very high
	(ww / dm = 0.40–0.45; uw / dm = 0.20–0.30)	(ww / wh = 1.00–1.10; IZR = 0.25–0.30)	(WER = 2.10–2.30)
40 mm	thinly discoidal; subinvolute	weakly compressed; weakly embracing	high to very high
	(ww / dm = 0.35–0.40; uw / dm = 0.20–0.25)	(ww / wh = 0.80–1.00; IZR = 0.25–0.35)	(WER = 2.10–2.30)