- Trinidad. It is the only
species in the
genus Steatornis, the
family Steatornithidae, and the
order Steatornithiformes.
Nesting in
colonies in caves, oilbirds...
-
Caprimulgidae (nightjars,
nighthawks and allies),
Nyctibiidae (potoos),
Steatornithidae (oilbirds),
Podargidae (frogmouths),
Apodiformes (swifts and hummingbirds)...
- Rhinochetidae, Eurypygidae, Mesitornithidae, Pteroclididae,
Opisthocomidae and
Steatornithidae. It
contains 2-6 vertebrae. It
probably evolved at
least 10
times independently...
-
species Family Caprimulgidae:
nightjars South America; 1
species Family Steatornithidae:
oilbird Americas; 7
species Family Nyctibiidae:
potoos Asia and Australasia;...
-
supports it
instead being a
close relative of the
oilbird (family
Steatornithidae). The
potoos are a
highly conservative family in appearance, with all...
- †Euronyctibius †Prefica †Protocypselomorphus †Fluvioviridavidae
Fluvioviridavis Steatornithidae Steatornis...
- †Euronyctibius †Prefica †Protocypselomorphus †Fluvioviridavidae
Fluvioviridavis Steatornithidae Steatornis...
- †Euronyctibius †Prefica †Protocypselomorphus †Fluvioviridavidae
Fluvioviridavis Steatornithidae Steatornis...
- †Euronyctibius †Prefica †Protocypselomorphus †Fluvioviridavidae
Fluvioviridavis Steatornithidae Steatornis...
- †Euronyctibius †Prefica †Protocypselomorphus †Fluvioviridavidae
Fluvioviridavis Steatornithidae Steatornis...
