Results 101 to 110 of about 1,690 (206)

Intra‐terrestrial aliens—Visualizing the bizarre cranial anatomy of the worm‐lizard!

open access: yes
The Anatomical Record, Volume 307, Issue 3, Page 533-534, March 2024.
Adam Hartstone‐Rose
wiley   +1 more source

Microevolutionary Response in Lower Mississippian Camerate Crinoids to Predation Pressure [PDF]

open access: yes, 2013
Crinoids were relatively unaffected by the end-Devonian Hangenberg event, but the major clades of Devonian durophagous fishes suffered significant extinctions. These dominant Devonian fishes were biting or nipping predators.
Thompson, Jeffrey
core  

Early Frasnian acanthodians from central Iran [PDF]

open access: yes, 2006
Two vertebrate-bearing horizons in the basal Frasnian carbonate of the Chahriseh section, northeast of Esfahan, yielded microremains of thelodonts, placoderms, acanthodians, actinopterygians, chondrichthyans, and sarcopterygians, considerably expanding ...
Burrow, Carole J.   +2 more
core  

Contaminació carcinogènica i potencial de prevenció [PDF]

open access: yes, 1986
Hom discuteix el problema de la contaminació carcinogènica des del punt de vista del seu context universal i del seu remot origen. Els presents factors de contaminació són atribuïts a l'augment de població urbana, a la sempre creixent industrialització i
Giner-Sorolla, Alfred
core  

Late Devonian and Early Mississippian Distal Basin-Margin Sedimentation of Northern Ohio [PDF]

open access: yes, 1988
Author Institution: Department of Geological Sciences, Cleveland State UniversityClastic sediments, derived from southeastern, eastern and northeastern sources, prograded westward into a shallow basin at the northwestern margin of the Appalachian Basin ...
Lewis, Thomas L.
core  

A Gigantic Sarcopterygian (Tetrapodomorph Lobe-Finned Fish) from the Upper Devonian of Gondwana (Eden, New South Wales, Australia)

open access: yes, 2015
Edenopteron keithcrooki gen. et sp. nov. is described from the Famennian Worange Point Formation; the holotype is amongst the largest tristichopterids and sarcopterygians documented by semi-articulated remains from the Devonian Period.
Dunstone, Robert L.   +3 more
core   +1 more source

Polymorphism, variation and evolutionary change in early vertebrates from the Gogo Formation, Western Australia [PDF]

open access: yes, 2009
The imperfection of the fossil record was used by Charles Darwin to explain the lack of evidence for 'organs of extreme perfection and complication', which under his theory of natural selection must have evolved through a series of gradual transitions ...
Trinajstic, Kate
core  

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