Annals of the South African Museum, Volume 91 |
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Page 47
Adventitious avicularia unilateral or paired , acute ; interzooidal marginal
avicularia sometimes present , mandibles slung on paired condyles . Remarks
The genus is inferred to have umbonuloid ontogeny of zooid frontal shields , as in
Adeona ...
Adventitious avicularia unilateral or paired , acute ; interzooidal marginal
avicularia sometimes present , mandibles slung on paired condyles . Remarks
The genus is inferred to have umbonuloid ontogeny of zooid frontal shields , as in
Adeona ...
Page 110
Spiramen oval , situated close to distal end of peristome , flanked by small paired
medially directed avicularia , a second pair often present on distal rim of
peristome . Marginal vicarious avicularia absent A . falcicula Hayward ( 1981 )
Primary ...
Spiramen oval , situated close to distal end of peristome , flanked by small paired
medially directed avicularia , a second pair often present on distal rim of
peristome . Marginal vicarious avicularia absent A . falcicula Hayward ( 1981 )
Primary ...
Page 110
Peristomial avicularia typically paired , arising distal to spiramen and extending
medially above distal border of secondary orifice A . decipiens sp . nov . Sinus
forming a symmetrical , broader U - shape . Peristomial avicularia single or
paired ...
Peristomial avicularia typically paired , arising distal to spiramen and extending
medially above distal border of secondary orifice A . decipiens sp . nov . Sinus
forming a symmetrical , broader U - shape . Peristomial avicularia single or
paired ...
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Common terms and phrases
Adeonella appears avicularia basal base BMNH border boss branch broad Broom Bryozoa Busk calcification capital characteristic characters chiefdoms closely collected Colony encrusting condyles dentary described Description Colony developed dicynodonts directed distal distinct distribution dorsal edge elongate erect extending Family Figure foramen forms Frontal wall further genera genus grooves Harmer Hayward & Cook hexagonal included lateral length live lower jaw mandible marginal Material Stations SM Measurements means medially Museum narrow Note O'Donoghue opesia oral spines original oval Ovicell paired palatal palatine parietals peristome Polyzoa pores posterior postorbital present Primary orifice prominent proximal pterygoid references region Remarks reported ridge rostrum rounded Ryland secondary separated short showing side similar single situated skull slender South African species spiramen Stations SM 163 surface Table teeth triangular tusk type specimen typically values ventral wide zooids