- biominerals. Like scorpions,
xiphosurans have an
exocuticular layer of
hyaline which exhibits UV fluorescence.
Xiphosurans have up to four eyes, located...
-
species of
xiphosurans and 4
extant species of
xiphosurans recognized as valid.
There is no "official" or "canonical" list of
xiphosuran genera. The...
-
Natural Sciences of Philadelphia, 17, 41 - 45. Anderson, L. I. 1994.
Xiphosurans from the
Westphalian D of the
Radstock Basin,
Somerset Coalfield, the...
- may be
gained over the
course of
ontogeny in some lineages, such as
xiphosurans and sea spiders).
Whether eurypterids were true
direct developers (with...
-
Although arachnids (like this spider) don’t have
compound eyes,
xiphosurans and many
other extinct chelicerates do...
-
reasonable alternative to this view[according to whom?] is to ****ume that
xiphosurans reflect the
morphology of the
primitive arachnid pedipalp and to conclude...
-
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...
-
Paleontology portal 2005 in
paleontology 2008 in
paleontology List of
xiphosurans David M. Rudkin,
Graham A.
Young &
Godfrey S.
Nowlan (2008). "The oldest...
- S2CID 135183999. E. S. Shpinev; D. V.
Vasilenko (2018). "First
fossil xiphosuran (Chelicerata, Xiphosura) egg
clutch from the
Carboniferous of Khak****ia"...
-
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...
