Nature

The Vertebrate Evolutionary Tree

FOR long we have accepted as well-established and equivalent the five classes of vertebrate animals, but recent zoological research, particularly on the palaeontological side, has modified many old ...
The University of Chicago Chronicle

Fossilized slime of ancient eel-like creature shakes up vertebrate family tree

Paleontologists at the University of Chicago have discovered the first detailed fossil of a hagfish, the slimy, eel-like carrion feeders of the ocean. The 100-million-year-old fossil helps answer ...
Science Daily

Fossilized slime of 100-million-year-old hagfish shakes up vertebrate family tree

Paleontologists have discovered the first detailed fossil of a hagfish, the slimy, eel-like carrion feeders of the ocean. The 100-million-year-old fossil helps answer questions about when these ...
insider.si.edu

Vertebrate fetal membranes : comparative ontogeny and morphology, evolution, phylogenetic significance, basic functions, research opportunities / Harland W. Mossman

https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!352600~!0#focus ...
EurekAlert!

Family tree of fish yields surprises

The mighty tuna is more closely related to the delicate seahorse than to a marlin or sailfish. That is one of the surprises from the first comprehensive family tree, or phylogeny, of the "spiny-rayed ...
insider.si.edu

Immunologic phylogeny : [proceedings] / edited by W.H. Hildemann and A.A. Benedict

There are two now classic reasons for the widespread and continuing interest in the phylogeny of immune reactivities and structure. First is the fundamental concern of biologists with the evolution of ...