_Barnegat City_ (female).—First caudal (vert. 28): Similar to last
lumbar, but neural spine broader antero-posteriorly. Transverse process ࡪ
length of centrum, inversely triangular, the tip much in advance of
anterior face of centrum, free end somewhat rounded. Metapophyses similar
to those of last lumbar. No median inferior ridge, but two short
processes bearing facets for chevrons posteriorly and a very slight
indication of similar process anteriorly, but without facets. Posterior
inferior oblique channels indistinct.
Seventh caudal (vert. 34): Centrum (exclusive of chevron processes)
nearly as deep as long. Neural arch and spine only a little higher than
length of centrum, very much inclined backward and expanded at distal
end; free border of spine straight. Metapophyses close to centrum, united
nearly to tips by a horizontal plate. A ridge extends backward from their
tips nearly across the arch. Another very prominent ridge traverses the
centrum at the base of the arch. At the posterior end, a deep groove,
convex forward, extends down the side of the centrum, making an
emargination in the transverse process and proceeding thence down the
lower side of centrum to its lower middle point, where it ends in a deep
semicircular emargination between the anterior and posterior chevron
facets. Transverse process a triangular stub, reaching nearly to the line
of the anterior face of centrum. Chevron processes very large, and the
median inferior surface of the centrum between them deeply grooved
longitudinally.
Tenth caudal (vert. 37): Centrum as deep as long. Neural spine a low
ridge, as long as the centrum, and extending beyond it posteriorly. No
transverse processes. A foramen in side of centrum much above the middle
and a similar one below. Close to the latter and below it another foramen
pierces the ridge uniting the chevron processes, and appears below on
side of longitudinal inferior median channel. Metapophyses small
mammilliform processes on top of centrum.
Eleventh caudal (vert. 38): No processes. A very small neural spine.
Posterior epiphysis strongly convex.
Twelfth caudal (vert. 39): A rounded mass without processes.
Thirteenth caudal (vert. 40): An oblong mass, with two grooves on each
side, two widely separate foramina above and two closely approximated
below, entering a common depression, with rounded projections on its
borders.
Fourteenth caudal (vert. 41): Similar to thirteenth caudal, but with a
single lateral groove.
Fifteenth caudal (vert. 42): Similar to fourteenth caudal, but sides
extending upward and downward in a ridge. Inferior foramina nearly as far
apart as superior and posterior epiphysis much smaller than anterior.
Sixteenth caudal (vert. 43): Similar to fifteenth caudal, but the
disproportion of epiphyses greater and lateral ridges higher. Superior
and inferior surfaces of centrum inclined.
Seventeenth caudal (vert. 44): Similar to preceding, but smaller.
Eighteenth caudal (vert. 45): Longer than high. Inferior ridge longer and
larger than superior. Groove very large. Anterior face of centrum deeply
concave, posterior flat. Posterior epiphysis very much smaller than
anterior. Foramina very small, practically obliterated on right side.
_Newport_ (male).—First caudal (vert. 27): Similar to last lumbar, but
transverse process shorter, about two-thirds as long as centrum, oblong
and but little constricted at base; distal margin nearly straight. The
process does not extend forward quite to the line of the anterior face of
centrum. No inferior median ridge, but strong posterior chevron
processes. Postero-inferior oblique grooves very distinct.
Seventh caudal (vert. 33): Similar to the same vertebra in Barnegat
skeleton, but neural spine more inclined backward and anterior border
deeply concave. Metapophyses oblong, directed upward, not reaching
anterior face of centrum as they do in Barnegat skeleton. Anterior face
of centrum receding superiorly and the ridge opposite it on side of
centrum shorter than in Barnegat skeleton. Ridge behind metapophyses
indistinct. Postero-inferior oblique grooves as in Barnegat skeleton, but
piercing transverse process, forming a foramen. Anterior and posterior
chevron processes very large and receding very much, as do also the
anterior and posterior faces of centrums.
Eleventh caudal (vert. 37): Similar to Barnegat skeleton, but spine
shorter than centrum and not extending beyond it anteriorly or
posteriorly. Metapophyses similar, but wider apart.
Twelfth caudal (vert. 38): Neural arch barely complete. No spine.
Thirteenth to nineteenth caudals (vert. 39-45): Similar to those of
Barnegat skeleton.
Twentieth caudal (vert. 46): Rudely triangular, with a peg-like posterior
projection, bearing the very small posterior epiphysis. No foramina.
Anterior epiphysis deeply concave in middle.
_Charleston_ (female, jr.).—First caudal (vert. 28): Similar to last
lumbar, but only a faint inferior median ridge. Inferior outline of
centrum antero-posteriorly very concave, which is not the case in the
Barnegat and Newport skeletons. Posterior chevron processes prominent.
Postero-inferior oblique grooves shallow.
Seventh caudal (vert. 34): Like the Newport skeleton. The transverse
process not pierced or emarginate. Postero-inferior oblique grooves
indistinct. Ridges on centrum very distinct. Right anterior and posterior
chevron processes united and pierced by a foramen.
Tenth caudal (vert. 37): Similar to the same vertebra in Newport
skeleton, but neural spine very short.