Hylidae,

Duellman, William E., Marion, Angela B. & Hedges, Blair, 2016, Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae), Zootaxa 4104 (1), pp. 1-109: 52-53

publication ID

http://doi.org/10.11646/zootaxa.4104.1.1

publication LSID

lsid:zoobank.org:pub:D598E724-C9E4-4BBA-B25D-511300A47B1D

persistent identifier

http://treatment.plazi.org/id/03EA87A5-FF9A-121D-F398-8A0A30D6F1AE

treatment provided by

Plazi

scientific name

Hylidae
status

 

Hylidae  : Lophyohylinae

Another clade of arboranans now designated Lophyohylinae originated (crown node) in the late Eocene, 37.2 (32.3–42.2) Mya. Based on present distributions, lophyohylines originated in the Amazon Basin and subsequently dispersed into eastern Brazil, the Guianan Region, and the West Indies. An early divergence (the crown node) led to the evolution of Phyllodytes  in eastern Brazil and Phytotriades in Trinidad. A major split in the Lophyohylinae occurred in the late Eocene, 34.6 (30.8–38.4) Mya. The first clade contained ancestral Trachycephalus  , which became widespread in the American tropics and differentiated into 14 species. The earliest divergence from the ancestral Trachycephalus  was the differentiation of Itapotihyla  in the latest Eocene, 33.2 (26.8–39.6) Mya; the single species inhabits the Atlantic Coastal Forest in Brazil. Itapotihyla  is like some species of Trachycephalus  in having a casque head. In what is now subhumid regions of northeastern Brazil, the casque-headed, bromeliaddwelling Corythomantis  diverged from Trachycephalus  in the Oligocene, 28.4 (22.6–34.2) Mya. Another clade of casque-headed species diverged (crown node) in the early Miocene, 20.0 (15.4–24.6) Mya; these included the ancestors of Aparasphenodon  in the upper Orinoco Basin and coastal Brazil, Argenteohyla  in northeastern Argentina, and Nyctimantis  in the upper Amazon Basin.

The second major clade of lophyohylines split into two clades in the early Oligocene, 31.9 (28.2–35.5) Mya. One of these clades became Osteopilus  (see below). The other divided into three modern genera, diverging 25–28 Mya. This led to Dryaderces (single species represented), with two species in the Amazon Basin and on the lower slopes of the adjacent Andes; Osteocephalus  in the Miocene, 18.2 (15.5–20.9) Mya (crown node) with 23 species in the Amazon Basin, lower slopes of the Andes, and the Guianan Region; and Tepuihyla  also in the Miocene, 16.5 (12.8–20.3) Mya (crown node) with seven species in the Guiana Highlands.

Kingdom

Animalia

Phylum

Chordata

Class

Amphibia

Order

Anura

Family

Hylidae