CLASS
Chondrichthyes
SUB CLASS
Elasmobranchii
SUPER ORDER
Euselachii
ORDER
Xenacanthida
FAMILY
Xenacanthidae
GENUS
Xenacanthus (Pleurocanthus pre-occupied, Heyler, D. (1969)
NEWHM:G034.26Holotype

Xenacanthus alatus (Davis)

Spine

Cannel Coal
Middle Coal MeasuresCollected by Davis, J. W.
Tingley, YorkshirePresented by Davis, J. W.
Pleuracanthus alatus Davis Davis, J. W. (1880), p. 329, Pl. XII, Fig. 4 & Text Figs. 6a & b
Woodward, A. S. (1889), p. 9
Davis, J. W. (1892), p. 736, Pl.L XXIII, Fig. 5
NEWHM:G034.24Holotype

Xenacanthus howsei (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland

The last 2cm of the "finely pointed apex" described by Davis (1892) are now missing.

Pleuracanthus howsei Davis Davis, J. W. (1892), pp. 735-736, Pl.LXXII, Fig. 21
NEWHM:G034.11"Syntype"
Old NHS Number 8

Xenacanthus serratus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland

This specimen was one of two used to illustrate Davis's (1892) new species Pleuracanthus serratus. It was figured alongside NEWHM:G034.12.

Pleuracanthus serratus Davis Davis, J. W. (1892), p. 744, Pl.LXXIII, Fig. 20
NEWHM:G034.12"Syntype"
Old NHS Number 7

Xenacanthus serratus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland
Pleuracanthus serratus Davis Davis, J. W. (1892), p. 744, Pl. LXXIII, Fig.19
NEWHM:G034.21Figured
Old NHS Number 30

Xenacanthus alatus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland
Pleuracanthus alatus Davis Davis, J. W. (1892), p. 737, Pl. LXXIII, Fig.10
NEWHM:G034.22Figured
Old NHS Number 32

Xenacanthus alatus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland
Pleuracanthus alatus Davis Davis, J. W. (1892), p. 737, Pl. LXXIII, Fig. 11
NEWHM:G024.22Figured
Old NHS Number 26

Xenacanthus denticulatus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland
Pleuracanthus alatus Davis Davis, J. W. (1892), pp. 734-735, Pl. LXXII, Fig. 19
NEWHM:G034.25Figured
Old NHS Number 18

Xenacanthus erectus (Davis)

Spine

Shale above Low Main Seam
Westphalian B or C, CarboniferousExchanged with the N. H. S.
Tingley, Yorkshire
Pleuracanthus erectus Davis Davis, J. W. (1892), pp. 738-739, Pl. LXXIII, Fig. 16
NEWHM:G147.59Figured

Xenacanthus erectus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N. H. S.
Newsham Colliery, Northumberland
Pleuracanthus erectus Davis Davis, J. W. (1892), pp. 738-739, Pl. LXXIII, Fig. 14
NEWHM:G051.17Figured

Xenacanthus laevissimus (Agassiz)

Teeth and spinal bones

Shale above Low Main SeamCollected by Atthey, T.
Westphalian B, CarboniferousPresented by Lady Armstrong, 1878
Newsham Colliery, Northumberland
Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), pp. 719-720, Pl. LXIX
NEWHM:G051.24Figured

Xenacanthus laevissimus (Agassiz)

Crushed head and spine

Shale above Low Main SeamCollected by Atthey, T.
Westphalian B, CarboniferousPresented by Lady Armstrong, 1878
Newsham Colliery, Northumberland
Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), p. 722, Pl. LXX
NEWHM:G054.01Figured

Xenacanthus laevissimus (Agassiz)

Interspinous ray and vertebra

Shale above Low Main SeamCollected by Atthey, T.
Westphalian B, CarboniferousPresented by Lady Armstrong, 1878
Newsham Colliery, Northumberland

Only the interspinous ray is figured.

Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), p. 723, Pl. LXXI
NEWHM:G054.02Figured

Xenacanthus laevissimus (Agassiz)

Interspinous ray

Shale above Low Main SeamCollected by Atthey, T.
Westphalian B, CarboniferousPresented by Lady Armstrong, 1878
Newsham Colliery, Northumberland
Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), p. 723, Pl. LXXI Fig. 3
NEWHM:G054.03Figured

Xenacanthus laevissimus (Agassiz)

Surapophysial ray

Shale above Low Main SeamCollected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), p.723, Pl.LXXI Fig.4
NEWHM:G054.04Figured

Xenacanthus laevissimus (Agassiz)

Spine

Shale above Low Main SeamCollected by Dinning, W., 1878
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), p.728, Pl.LXXI Fig.7
NEWHM:G054.37Figured

Xenacanthus laevissimus (Agassiz)

Large slab exhibiting the posterior part of the head, together with spinous bones of the haemal or neural arches, and interspinous bones with a number of teeth

Shale above Low Main SeamCollected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus laevissimus Agassiz Davis, J. W. (1892), p.722-723, Pl.LXXI Fig.1
NEWHM:G034.13Figured
Old NHS Number 15

Xenacanthus robustus (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N.H.S.
Newsham Colliery, Northumberland
Pleuracanthus robustus Davis Davis, J. W. (1892), p.731, Pl.LXXII, Fig.13
NEWHM:G034.46Figured

Xenacanthus taylori (Davis)

Spine

Shale above Low Main Seam
Westphalian B, CarboniferousExchanged with the N.H.S.
Newsham Colliery, Northumberland

An old label associates this specimen with the referenced figure below, although there are a number of discrepancies between the two.

Pleuracanthus taylori (Stock) Davis Davis, J. W. (1892), p.745, Pl.LXXIII, Fig.23
NEWHM:G025.21Figured

Xenacanthus sp.

Bones of upper surface of cranium

Shale above Low Main SeamCollected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland

Specimen in three pieces.

Pleuracanthus sp. Davis, J. W. (1892), p.715, 718-719, Pl.LXVIII, Figs. 2, 2a & 3
NEWHM:G034.35Figured
Old NHS Number 6

Xenacanthus sp.

Shoulder girdle with parts of the branchial arches

Shale above Low Main SeamCollected by Atthey, T.
Westphalian B, CarboniferousPresented by Lady Armstrong, 1878
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.717, Pl.LXVIII, Figs. 1
NEWHM:G051.18Figured

Xenacanthus sp.

Osseous fragment

Shale above Low Main Seam Collected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.703, Pl.LXVIII, Figs. 1 & 1a
NEWHM:G051.19Figured

Xenacanthus sp.

Osseous fragment

Shale above Low Main Seam Collected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.703, Pl.LXVIII, Fig. 6
NEWHM:G051.20Figured

Xenacanthus sp.

Osseous plate

Shale above Low Main Seam Collected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.703, Pl.LXVIII, Fig. 7
NEWHM:G051.21Figured

Xenacanthus sp.

Osseous plate

Shale above Low Main Seam Collected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.703, Pl.LXVIII, Fig. 8
NEWHM:G051.22Figured

Xenacanthus sp.

Pterygopodium (clasper) of the ventral fin

Shale above Low Main Seam Collected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.703, Pl.LXVIII, Fig. 9
NEWHM:G051.23Figured

Xenacanthus sp.

Pterygopodium ?

Shale above Low Main Seam Collected by Dinning, W.
Westphalian B, CarboniferousPresented by Dinning, W.
Newsham Colliery, Northumberland
Pleuracanthus sp. Davis, J. W. (1892), p.703, Pl.LXVIII, Fig. 10
CLASS
Elasmobranchii
ORDER
Xenacanthida
FAMILY
Diplodoselachidae
GENUS
Diplodoselache
NEWHM:G103.75Cited

Diplodoselache woodi Dick

Body of fish exposed in lateral aspect.

Shale parting in Craigleith Sandstones, Granton Sandstone Member
Craigleith Quarry, Edinburgh
Diplodoselache woodi Dick Dick, J. R. F. (1981), pp. 100-105, Pl.LXVIII
SUB CLASS
? Elasmobranchii
Remains not identifiable to order. Ichthyodorulites (spines).
GENUS
Eutenius
NEWHM:G040.33.1Figured

Euctenius unilateralis (Barkas W. J.)

Tooth

Shale above Low Main Seam Collected by Barkas, T.P.
Westphalian B, CarboniferousPresented Barkas, T.P.
Newsham Colliery, Northumberland

Barkas, W.J. (1874), stated that "Ctenoptychius unilateralis was first described and figured by Mr. T. P. Barkas in the Geological Magazine for January, 1869". In fact, Barkas, T.P. (1869b) originally described and figured this specimen only as Ctenoptychius and did not identify the species. The first published account of Ctenoptychius unilateralis was given by Barkas, W.J. (1874).

Ctenoptychius sp. Barkas, T. P. (1869b), p. 43, Fig. 2
Barkas, T. P. (1873), p. 18, Pl. I, Fig. 23
Ctenoptychius unilateralis Barkas, W. J. (1874), p. 484
Euctenius unilateralis (Barkas, W. J.) Woodward, A. S. (1891), p.155, Fig. 13
SUB CLASS
Holocephali
ORDER
Incertae Sedis
SUB ORDER
Helodontoidei
FAMILY
Helodontidae
GENUS
Pleuroplax
NEWHM:G058.67Holotype

Pleuroplax rankinei Hancock & Atthey

Almost complete fish showing head, dorsal spine and caudal fin.

Shale above Low Main Seam
Westphalian B, CarboniferousCollected by Atthey, T.
Newsham Colliery, NorthumberlandPresented by Lady Armstrong, 1878

NEWHM:G147.66 is the counterpart of this specimen. Pleurodus rankinei was originally cited by Agassiz (Poiss. Foss. Vol iii, p. 174) in 1843 (name only). Woodward (1889) subsequently cites this specimen, described and figured by Hancock & Atthey (1872a & d), as the Type, being "associated dental plates, and anterior portion of body with dorsal fin-spine; Museum of Newcastle upon Tyne", but proposes the replacement genus Pleuroplax nomen nov., and re-introduces the original spelling of rankinei by Agassiz.

Pleurodus rankinii Hancock & Atthey Hancock, A. & Atthey, T. (1872a), pp.249-252, Pl.XVII, Fig.1
Hancock, A. & Atthey, T. (1872d), pp.408-411, Pl.XV, Fig.1
Howse, R. (1889), p.44
Pleuroplax rankinei Hancock & Atthey Woodward, A.S. (1889), p.173
NEWHM:G147.66Holotype (counterpart)

Pleuroplax rankinei Hancock & Atthey

Left thoracic expansion

Shale above Low Main Seam
Westphalian B, CarboniferousCollected by Atthey, T.
Newsham Colliery, NorthumberlandPresented by Lady Armstrong, 1878

This specimen is the counterpart of NEWHM:G058.67. See notes for NEWHM:G058.67.

Pleurodus rankinii Hancock and Atthey Hancock, A. & Atthey, T. (1872a), p.250, Pl.XVII, Figs.1c & e
Hancock, A. & Atthey, T. (1872d), pp.408-409, Pl.XV, Figs.1c & e
Howse, R. (1889), p.44
Pleuroplax rankinei Hancock & Atthey Woodward, A.S. (1889), p.173
SUB CLASS
Incertae Sedis
ORDER
Petalodontida
GENUS
Janassa
NEWHM:G076.80Figured

Janassa bituminosa(Schlotheim)

Group of numerous teeth

Marl Slate
Upper PermianCollected by Duff, J. & later purchased by Atthey, T.
Middridge, County DurhamPresented by Lady Armstrong, 1878

Hancock & Howse (1870a & b) note that the "specimen is fortunately broken through tranversely near the centre......and thus we obtain a clear demonstration of the arrangement of the teeth". The specimen has subsequently been glued back together.

Janassa bituminosa (Schlotheim) Hancock, A. & Howse, R. (1870a), pp. 57-58, Pl. III, Fig. 1
Hancock, A. & Howse, R. (1870b), pp. 351-352, Pl.XI, Fig. 1
Howse, R. (1889), p. 23
Woodward, A.S. (1889), p. 35
NEWHM:G076.81Figured

Janassa bituminosa(Schlotheim)

Toothplates

Marl Slate
Upper PermianCollected by Duff, J.
Middridge, County Durham
Janassa bituminosa (Schlotheim) Hancock, A. & Howse, R. (1870a), pp. 58-59, Pl.III, Fig. 2
Hancock, A. & Howse, R. (1870b), pp. 352-353, Pl.XI, Fig. 2
Howse, R. (1889), p. 23
Woodward, A.S. (1889), p. 35
NEWHM:G040.46Figured

Janassa linguaeformis (Atthey)

Tooth

Shale above Low Main Seam
Westphalian B, CarboniferousCollected by Barkas, T. P.
Newsham Colliery, NorthumberlanPresented by Barkas, C. E., November 1891
Janassa linguaeformis (Atthey) Woodward, A. S. (1889), p. 37
NEWHM:1995.H1762Figured

Janassa linguaeformis (Atthey)

Tooth

Shale above Low Main Seam
Westphalian B, CarboniferousCollected by Atthey, T.
Newsham Colliery, NorthumberlanPresented by Lady Armstrong, 1878
Janassa linguaeformis (Atthey) Hancock, A. and Atthey, T. (1869d), pp. 322-329, Pl.XII, Fig.2
Hancock, A. and Atthey, T. (1870d), pp. 330, Pl.XII, Fig.2
Woodward, A.S. (1889), p.36
Howse, R. (1889), p.45
NEWHM:1995.H1763Figured

Janassa linguaeformis (Atthey)

Teeth

Shale above Low Main Seam
Westphalian B, CarboniferousCollected by Atthey, T.
Newsham Colliery, NorthumberlanPresented by Lady Armstrong, 1878
Janassa linguaeformis (Atthey) Hancock, A. and Atthey, T. (1869d), pp. 322-329, Pl.XII, Fig.1
Hancock, A. and Atthey, T. (1870d), pp. 330, Pl.XI, Fig.1
Woodward, A.S. (1889), p.36
Howse, R. (1889), p.45
NEWHM:G040.77Figured

Janassa sp.

Small Tooth

Shale above Low Main Seam
Westphalian B, CarboniferousCollected by Barkas, T. P.
Newsham Colliery, NorthumberlanPresented by Barkas, C. E., 1981

Stored on a card with NEWHM:G040.76. Climaxodus is a synonym of Janassa (Carroll, 1988).

Climaxodus sp. Barkas, T.P. (1873), pp.111-112, Pl.X, Fig.241
Class:Placodermi Class:Incertae Sedis Acanthodii