- the
pantetrapulmonate clade alongside trigonotarbids as well. The
first cladistic analysis of the
trigonotarbids was
published in 2014. This recovered...
-
oldest known land
arthropods are
Trigonotarbids,
members of an
extinct order of spider-like arachnids.
Trigonotarbids share many
superficial characteristics...
-
pedipalp in both
ricinuleids and
trigonotarbids ends in a
similar small claw.
Ricinuleids as
sister group of
trigonotarbids was also
recovered in the 2002...
- some as long as 2.5 m (8 ft 2 in). The
oldest known arachnid is the
trigonotarbid Palaeotarbus jerami, from
about 420 million
years ago in the Silurian...
-
million years ago) of Kerrera.
There are also millipedes, centipedes, and
trigonotarbid arachnoids known from
Ludlow (420
million years ago).
Predatory invertebrates...
- the
first stable soils and
harbored arthropods like mites, scorpions,
trigonotarbids and
myriapods (although
arthropods appeared on land much
earlier than...
-
raised atmospheric oxygen level, land
arthropods such as
arachnids (e.g.
trigonotarbids and Pulmonoscorpius),
myriapods (e.g. Arthropleura) and
insects (e.g...
-
remnants detected in the
plant material, and the
breathing apparatus of
trigonotarbids—of the
class Arachnida—(known as book lungs) can be seen in cross-sections...
- soft tissues. The
oldest known exclusively terrestrial arachnid is the
trigonotarbid Palaeotarbus jerami, from
about 420 million
years ago in the Silurian...
- Heterostraci, Galeaspida, and Pituriaspida. 420 Ma
Earliest ray-finned fishes,
trigonotarbid arachnids, and land scorpions. 410 Ma
First signs of
teeth in fish....
