- the
first meraspid stage the
animal had a two-part structure—the head and the
plate of
fused trunk segments, the pygidium.
During the
meraspid stages, new...
-
Cambrian trilobites.
Known from
multiple life stages,
including late
meraspids. Some
specimens may have
previously been
misidentified as
Lehua or Parapilekia...
-
endopods are
poorly preserved. Its
specimens were once
thought to be
meraspids of
Naraoia spinosa.
Although their phylogenetic position has been described...
-
demonstrated that
Calodiscus agnostoides (Kobayashi, 1943)
represents late
meraspid instars of C.
lobatus (Cederström et al., 1988, p. 500). HOWELL, B. F....
- Usually,
proparian holaspid trilobites developed from
opisthoparian meraspids due to a
mechanism called heterochrony. Y.
longioccipitalis is
known from...
-
spherical eggs
averaging ~0.2mm in diameter, the
small protaspid and
early meraspid stages supposedly lived between the
plankton in the
water column. This...
-
Orsten deposits of
Sweden (Müller &
Walossek 1987) and the
appendages of
meraspid developmental stages of A.
pisiformis (½-1 mm
total body length) are the...
- two
thorax segments, has at
least nine
larval stages (or instars),
three meraspid and six holaspid, in its life. So it
molted at
least eight times. Budil...
-
Order Redlichiida. 1997 Shergold, John H. (1991). "Protaspid and
early meraspid growth stages of the
eodiscoid trilobite Pagetia ocellata Jell, and their...
- Boca Raton: CRC Press. Shergold, John H. (1991). "Protaspid and
early meraspid growth stages of the
eodiscoid trilobite Pagetia ocellata Jell, and their...
