- biominerals. Like scorpions,
xiphosurans have an
exocuticular layer of
hyaline which exhibits UV fluorescence.
Xiphosurans have up to four eyes, located...
- This list of
xiphosurans is a
comprehensive listing of all
genera that have ever been
included in the
order Xiphosura,
excluding purely vernacular terms...
-
Euproops is an
extinct genus of
xiphosuran,
related to the
modern horseshoe crab. It
lived during the
Carboniferous Period. The
Treatise on Invertebrate...
- this time. The
surviving marine species include the four
species of
xiphosurans (horseshoe crabs), and
possibly the 1,300 species of
pycnogonids (sea...
-
Austrolimulus fletcheri is an
extinct xiphosuran,
related to the
modern horseshoe crab. The
holotype and only
known specimen is from
Middle Tri****ic-aged...
- S2CID 135183999. E. S. Shpinev; D. V.
Vasilenko (2018). "First
fossil xiphosuran (Chelicerata, Xiphosura) egg
clutch from the
Carboniferous of Khak****ia"...
- the base and
terminated with a
chelate (pincer),
similar to
those of a
xiphosuran. On the
other hand,
Appendage VI
modified into a
paddle that strikingly...
- may be
gained over the
course of
ontogeny in some lineages, such as
xiphosurans and sea spiders).
Whether eurypterids were true
direct developers (with...
-
estuarine strata from
about 390 Ma. It was up to 2.5 m (8.2 ft) long.
Xiphosurans, the
group including modern Horseshoe crabs appeared around 480 Ma. Extant...
-
function as jaws and help
grind up food. In
extant species and
other fossil xiphosurans (e.g. Alanops)
their appendages are uniramous, but in
other related non-xiphosurid...
