which 2 vertebrate clades suffered the greatest extinctions?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Examine Figure 3. Based on percent (%), which 2 vertebrate clades suffered the greatest extinctions?
Environmental association
Continental
Widespread
Marine
DDDDDAB
Rhizodontida
Phyllolepida
Megalichthyidae
Tetrapoda
Porolepiformes
Tristichopteridae
Osteolepididae
Antiarcha
Acanthodida
Dipnoi
Climatiida
Actinopterygii
Arthrodira
Ischnacanthida
Gyracanthida
Actinistia
Onychodontida
Elasmobranchii
Holocephalii
Ptyctodontida
Other Placodermi
Symmoriiformes
Giv.
390
Fras.
Devonian
380
Famen.
t
Hangenberg Extinction Event
Hangenberg Event,
Tour.
T
350
370 360 359
Geologic time (Ma)
Tetrapoda
Dipnoi
Gyracanthida
Visean
Rhizodontida
Megalichthyidae
Elasmobranchii
Acanthodida
Actinopterygii
Holocephalii
Symmoriiformes
Mississippian
Actinistia
Serp.
T
340 330 320
NS DX Saff
Key
A = placoderms
B = acanthodians
C = chondrichthyans
D
osteichthyans
Figure 3. Extinction of vertebrates from the Hangenberg Extinction Event of the Devonian
Period. From Fiedman and Sallan (2012).
Transcribed Image Text:Environmental association Continental Widespread Marine DDDDDAB Rhizodontida Phyllolepida Megalichthyidae Tetrapoda Porolepiformes Tristichopteridae Osteolepididae Antiarcha Acanthodida Dipnoi Climatiida Actinopterygii Arthrodira Ischnacanthida Gyracanthida Actinistia Onychodontida Elasmobranchii Holocephalii Ptyctodontida Other Placodermi Symmoriiformes Giv. 390 Fras. Devonian 380 Famen. t Hangenberg Extinction Event Hangenberg Event, Tour. T 350 370 360 359 Geologic time (Ma) Tetrapoda Dipnoi Gyracanthida Visean Rhizodontida Megalichthyidae Elasmobranchii Acanthodida Actinopterygii Holocephalii Symmoriiformes Mississippian Actinistia Serp. T 340 330 320 NS DX Saff Key A = placoderms B = acanthodians C = chondrichthyans D osteichthyans Figure 3. Extinction of vertebrates from the Hangenberg Extinction Event of the Devonian Period. From Fiedman and Sallan (2012).
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