;"Burmanopetalidae fam. nov.";"Hannibaliulus wilsonae";Sinocallipodidae;Callipodidae;Abacionidae;Caspiopetalidae;Dorypetalidae;Schizopetalidae;Paracortinidae;Tynnomatidae Length;"8.2 mm";"53–56 mm";"40–70 mm";"50–70 mm";19–59;"28–45 mm";"12–50 mm";"12–100 mm";"32–60 mm";"13–50 mm" "Number of PTs";35;39–43;55–72;55–65;46–61;53–66;43–54;35–56;50–85;43–88 Antennae;"Antennal articles III-V strongly conical (infundibular); 6–7th subrectangular";Unknown;"antennal articles generally long; in S. thai article VI short and infudibular";"Only VIth article infudibular; 7th article conical";"Only VIth article infudibular; 7th article conical";"V-VIth articles infudibular; 7th article conical";"Generally short, article V-VI infundibular (fig. 5 Stoev and Enghoff 2006; Reboleira & Enghoff, 2015-Lusitanipus)";"Only Vth article infudibular; VIIth article conical";"Only Vth article infudibular; VIIth article conical";"V-VIth articles infudibular??; VIIth article conical" Ommatidia;"5, well-separated, arranged in two rows";"Numerous (at least 10) arranged in subtriangular patch";"5–11, arranged in 2–3 rows, in oval shape in others;reduced in some cave species";"Numerous, arranged in subtriangular patch";"Numerous, arranged in subtriangular patch";"Numerous, arranged in subtriangular patch";"Numerous, arranged in subtriangular patch";"Numerous, arranged in subtriangular patch";"Numerous, arranged in subtriangular patch";"Numerous, arranged in subtriangular patch; reduced in some cave species" Collum;"Smooth, some crests posteriorly";Unknown;Smooth;Smooth;"With crests posteriorly";"With crests";"Smooth or with moderate crests";"With crests or smooth";"With crests";"With crests" "Pleurotergal crests";"Moderately to poorly developed; narrow, subparallel.";"Metazonites of the pleurotergites smooth, with a distinct transverse depression and ventrolateral rebordered flange";"Moderately to poorly developed; narrow, subparallel";"Missing, instead of crests there are grooves";"Well developed; poriferous crests much larger";"Well developed; poriferous crests much larger";"Moderately to poorly developed";"Moderately developed to lacking";"Well developed; poriferous crests much larger";"Well-developed, poriferous crests more pronounced" "Position of ozopores";"Between crests";"Not detected";"Between crests";"Between grooves?";"On well-developed poriferous crests";"On well-developed poriferous crests";"At base of crests or on elevated swelling in Cyphocallipodinae";"At base of crests";"On well-developed poriferous crests";"On well-developed poriferous crests" Telson;"Enlarged, spatulate, twice the size of the penultimate segment";"Enlarged, 1.5 times the size of the penultimate segment in one specimen, posteriorly rounded in both specimens";"Normal, approx. the length of penultimate segment";Normal;"Normal, approx. the length of penultimate segment";"Normal, approx. the length of penultimate segment";"Normal, approx. the length of penultimate segment or slightly shorter/ larger";"Normal, approx. the length of penultimate segment";"Normal, approx. the length of penultimate segment";"Normal, approx. the length of penultimate segment" "Coxal pouches present on legs";Unknown;Unknown;3–11;3–21;3–13?;3–15;"3–13, 3–22 in Cyphocallipodinae";3–16;3–23;"3–19, 3–23" "Pleurotergal setae";Absent;Unknown;"In anterior position on all pleurotergites";"In posterior position on all pleurotergites";"In anterior and posterior position";"In anterior and posterior position";"In anterior and posterior position";"In anterior and posterior position";"In anterior and posterior position";"In anterior and posterior position" "Female second leg-pair";"Normal legs, maybe coxa slightly elongated";Unmodified?;"Normal legs";Modified;Modified;"Usually modified";"Normal or modified";"Normal legs, except for Euxinopetalum";"Modified – two sclerites";"Normal or modified" Period;"99 million years ago";"~242–247.2 million years ago";Extant;Extant;Extant;Extant;Extant;Extant;Extant;Extant