Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
Osteichthyes |
The bony fishes, broken into two groups because of how vast the group is. |
|
|
Sarcopterygian |
Fleshy-finned fishes |
|
|
Actinopterygian |
Ray-finned fishes |
|
|
Devonian |
(416-359 mya) Age of the Fishes |
|
|
Actinistian |
Group of sarcopterygian, contains ceolocanths.
|
|
|
Ceolocanth |
Under group actinistian, two extant species in western indian ocean and central indonesia. |
|
|
Dipnoan (lungfish) |
Sarcopterygii: 6 extant species, because of close relationship with tetrapods their role is significant in evolution. |
|
|
Aestivation |
A period of prolonged sleep, often used during summer and dry seasons, drought. |
|
|
Neopterygian |
Of the actinopterygii includes the Acentrophus and Leptolepis. |
|
|
Basal Osteichthyes |
Less derived of the bony fish, include Osteolepis, Moythomasia, and Dipterus |
|
|
Osteolepis |
Early osteichthyes, important sarcopterygii, sister to tetrapods |
|
|
Moythomasia |
Early actinopterygii. |
|
|
Acentrophus |
Neopterygii, early member of late Paleozoic radiation |
|
|
Leptolepsis |
Neopterygii, early jurassic teleost |
|
|
Paleoniscoid |
|
|
|
Teleostem |
Has an extra set of derived characteristics. Most extant fishes fall in this group. Most are eutelostei. |
|
|
Euteleostei |
Largest sub group in the teleostem, most extant fishes are in this group. Broken into two smaller groups, the ostariophsi and the salmoniforms. |
|
|
Bichir |
|
|
|
Bowfin |
|
|
|
Gar |
|
|
|
Sturgeon |
|
|
|
Perch |
|
|
|
Rhipidisteans |
|
|
|
Osteolepiform |
Highly diverse, extinct, sarcopterygian, peak in devonian period |
|
|
Operculum |
Gill covering |
