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RSSPaleozoic
The Paleozoic Era is a major
division of the geologic
timescale, one of four
geologic eras. The Paleozoic
includes six geologic
periods; from oldest to
youngest -- the Cambrian,
Ordovician, Silurian,
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Fossil
Fossils are the mineralized
or otherwise preserved
remains or traces (such as
footprints) of animals,
plants, and other organisms.
The totality of fossils and
their placement in
fossiliferous
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Trace fossil
Trace fossils are those
details preserved in rocks
that are indirect evidence
of life. While we are most
familiar with relatively
spectacular fossil hard part
remains such as shells and
bones, trace fossils are
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Homo heidelbergensis
Homo heidelbergensis
("Heidelberg Man") is an
extinct, potentially
distinct species of the
genus Homo and may be the
direct ancestor of Homo
neanderthalensis in Europe.
According to the "Recent Out
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Browse Reference Articles
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Archaeopteryx
Archaeopteryx lithographica is the earliest and most primitive known bird. In the 1990s, the discovery of a number of well-preserved feathered dinosaurs solidified the link between dinosaurs and ... > more -
Homo ergaster
Homo ergaster ("working man") is an extinct hominid species (or subspecies, according to some authorities) which lived throughout eastern and southern Africa between 1.9 to 1.4 million years ago with ... > more -
Cretaceous-Tertiary extinction event
The Cretaceous-Tertiary extinction event was a period of massive extinction of species, about 65.5 million years ago. It corresponds to the end of the Cretaceous Period and the beginning of the ... > more -
Homo antecessor
Homo antecessor is an extinct hominin species that was discovered by E. Carbonell, J.L. Arsuaga and J.M. Bermudez de Castro. They are one of the earliest known hominins in Europe, with those from the ... > more -
Homo rudolfensis
Homo rudolfensis is a fossil hominin species originally proposed in 1986 by V. P. Alexeev for the specimen Skull 1470 (KNM ER 1470). Originally thought to be a member of the species Homo habilis, the ... > more -
Multiregional hypothesis
The multiregional origin hypothesis of human species holds that some, or all, of the genetic variation between the contemporary human races is attributable to genetic inheritance from either Homo ... > more
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