| Colony shape | erect, irregularly ramifying with thick branches | semi-erect and claviform | adnate, thick, tendency to be moundshaped |
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| Maculae | linear and sinuous, or irregular in outline | unclear | circular, numerous; several subcolonies |
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| Autozooidal apertures | peristome erect, relatively short, mitrifom (single pointed end) or fimbriated (3–5 pointed processes) | no peristomes | no or a short peristome with a single pointed process in young parts of colony |
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| Kenozooids | smaller than autozooids, sometimes with a robust spine raised from the border of apertural rim | smaller than autozooids | larger in maculae zone but with smaller aperture due to the thick subterminal rim |
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| Mural spines | small, pointed or granular, in both autozooids small, pointed or granular, and kenozooids and on both sides of brood abundant in both autozooids and chambers kenozooids | pinhead with several spinelets forming a crown, numerous in kenozooids, absent in autozooids; granules on brood chamber walls |
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| Diaphragms | subterminal, frequent in older parts of colonies in both autozooids and kenozooids, funnel-shaped downwardly directed with a central lumen, without pseudopores | terminal diaphragms with pseudopores closing zooids forming floor of gonozooids | unknown |
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| Zooecial walls | moniliform, very thick | moniliform, very thick | moniliform, very thick |
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| Communication pores | openings large, narrowing markedly at zooidal boundary | openings large, narrowing markedly at zooidal boundary | often with a tiny septum at zooidal boundary |
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| Brood chamber | rapidly concealed by kenozooidal layer; ramose with several digitate lobes (up to 5 or 6), subcircular in outline; walls distinct; frontal wall densely dotted with circular closed pores, inner walls with pustules | ramose with several digitate lobes; walls distinct; frontal wall smooth; inner walls with pustules | not observed externally; ramose with several lobes, subcircular in outline; walls distinct, inner sides carpeted with dense granulations |
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| Ooeciopore | lacking a collar; located at the ends of lobes, several per brood chamber | not seen | poorly visible, smaller than autozooidal apertures |
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