Ampelognathus
Ampelognathus was a tiny, plant-eating dinosaur that lived in Texas about 96 million years ago. It was only about as long as a six-foot person and weighed as much as a medium-sized dog. This little dinosaur is known from just a single jawbone found near Grapevine Lake.1
Yoom jiraate?
Hammam guddaa ture?
Hammam dheeraa ture?
Hammam ol-dheeraa ture?
akka adurree manaa 4 funyaan hanga eegeetti dheeraa๐akka muuzii 10 walitti hiriiran dheeraa๐meetira 100 sekondii 9.2 keessatti fiiguu danda'a (namni hunda caalaa saffisaan 9.6 barbaada)SI wajjin yoo wal bira qabamu, Ampelognathus hammam guddaa ture?
Herrega qofa barbaadduu kee keessatti. Wanti tokkollee hin olkaa'amu, eessayyuu hin ergamu.
Hammam saffisaa ture?
Odeeffannoowwan bashannansiisoo
Ampelognathus is the first small-bodied, plant-eating ornithopod dinosaur ever found in the Lewisville Formation of Texas.2
The only fossil known from Ampelognathus is a two-inch-long piece of its lower left jawbone.1
Its jaw has a twist: the back teeth point upward and inward instead of straight up, which is unique among its relatives.2
When Ampelognathus lived, a shallow sea split North America into two landmasses, and Texas was on the eastern shore with a hot, humid climate.1
The dinosaur was named after Grapevine Lake, where it was found, and honors Murray Cohen, the fossil enthusiast who discovered the jawbone.2
Ampelognathus is only the fourth named dinosaur from the Dallas-Fort Worth area, joining armored Pawpawsaurus and large Protohadros.1

Gaaffiiwwan waa'ee Ampelognathus baay'ee gaafataman
?How big was Ampelognathus?
It was small, likely less than 1.8 metres long and weighed no more than a medium sized dog.1
?What did Ampelognathus eat?
It was a plant-eating dinosaur, a herbivore that lived on the ground.4
?When did Ampelognathus live?
It lived about 96 million years ago during the Late Cretaceous period.1
?Where was Ampelognathus found?
Its jawbone was found near Grapevine Lake in Grapevine, Texas, in the Lewisville Formation.1
Ogeeyyii daayinootiif
- Maqaa saayinsii
- Ampelognathus
- Kan maqaa baase
- Tykoski et al. 20234
- Garee
- Biqiltuu-nyaattota afaan simbirroo qaban
- Maatii / kilaadii
- Rhabdodontomorpha4
- Ramaddii
- Ornithischia > Ornithopoda > Iguanodontia4
- Umurii dhagaawwanii
- waggaa miliyoona 100 hanga 94 (Cenomanian)4
- Caasaawwan dhagaa
- Lewisville4
- Biyyoota
- Ameerikaa4
- Galmee fosilii
- 1 The Paleobiology Database keessa4
- Argannoo
- The fossil was found by Murray Cohen, a volunteer fossil enthusiast, in the Grapevine Lake emergency spillway in Texas. It was named and described by paleontologists Ron Tykoski, Dori Contreras, and Christopher Noto in 2023.2
- Ammallee falmisiisaa
- Scientists are not sure exactly how big Ampelognathus grew, because only a jawbone has been found so far.1
Odeeffannoon eessaa dhufa
- PRESS RELEASE (perot-m.imgix.net)
- The first small-bodied ornithopod dinosaur from the Lewisville Formation (middle Cenomanian) of Texa (tandfonline.com)
- Meet the dog-sized dinosaur recently discovered in North Texas | KERA News (keranews.org)
- Ampelognathus in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.
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