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Fig. 13 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 13. The relationship between age and depth in the Santee Coastal Reserve (SCR) core, Charleston, South Carolina (Edwards et al., 1999), based on calcareous nannofossil and magnetostratigraphic datums. Symbols: O = First Appearance Datum; + = Last Appearance Datum; • = Cretaceous/Tertiary boundary; I = paleomagnetic datum.

Fig. 12. A in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 12. A. Grain size analysis of the composite section at AMNH locs. 3345, 3346, and 3349, northeastern Monmouth County, New Jersey. The New Egypt/Hornerstown formational contact is plotted at 0. The percentage is by weight. B. Mineralogy of the same samples as percentage of grains of glauconite, mica, and other (e.g., quartz, heavy minerals).

Fig. 41. A–D in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 41. A–D. Discoscaphites iris (Conrad, 1858), uppermost New Egypt Formation and basal Hornerstown Formation, AMNH loc. 3345, northwest of Eatontown, Monmouth County, New Jersey. A, B. AMNH 47365, a fragment of a macroconch, part of the last suture at a whorl height of approximately 18.2 mm and internal lobe of another suture on the inner whorls. C. AMNH 51060, a macroconch, part of the last suture at a whorl height of 19.7 mm. D. AMNH 51059, a macroconch, part of a composite of two sutures at a whorl height of 7.9 mm. E. Discoscaphites gulosus (Morton, 1834), AMNH 47106, same locality as A–D, part of a composite of two sutures at whorl heights of 17.3 mm and 17.6 mm. F. Discoscaphites sp., AMNH 47107, a fragment, same locality as A–D, part of a suture at a whorl height of approximately 10.3 mm.

Fig. 11 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 11. Diagram of the contact between the New Egypt and Hornerstown Formations at AMNH loc. 3345, Parkers Creek, northeastern Monmouth County, New Jersey, showing the distribution of cephalopods and bivalves. Vertical scale = 35 cm; horizontal scale = 13 m. Not all of the fossils collected are shown nor do the symbols imply that the specimens are whole. The diagram is intended to provide an overview of the distribution of molluscan fossils, documenting that most of them occur at the formational contact.

Fig. 40. A–D, J–P in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 40. A–D, J–P. Discoscaphites minardi Landman et al., 2004. A–D. MAPS A2059b2, macroconch, upper New Egypt Formation, 1.5–2 m below the base of the Hornerstown Formation, AMNH loc. 3347, northwest of Eatontown, Monmouth County, New Jersey. A, Left lateral; B, apertural; C, ventral; D, left lateral. J–M. AMNH 47307, macroconch, upper New Egypt Formation, 1.5–2 m below the base of the Hornerstown Formation, AMNH loc. 3346, northwest of Eatontown, Monmouth County, New Jersey. J. Right lateral; K, apertural; L, ventral; M, left lateral. N–P. AMNH 47305, microconch, same locality as J–M. N, Right lateral; O, ventral, P, left lateral. E–I, Q–S. Discoscaphites spp., same locality as J–P. E–G. AMNH 47301. E, Right lateral; F, ventral; G, left lateral. H, I. AMNH 47300. H, Right lateral; I, left lateral. Q–S. AMNH 47304. Q, Right lateral; R, ventral; S, left lateral. All specimens are X1.

Fig. 9. Dinoflagellates from USGS Paleobotan. loc. R6234 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 9. Dinoflagellates from USGS Paleobotan. loc. R6234, lower part of the Hornerstown Formation, Parkers Creek, 0.3 km east of Rt. 35, northwest of Eatontown, northeastern Monmouth County,

Fig. 8. Dinoflagellates from USGS Paleobotan. loc. R6234 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 8. Dinoflagellates from USGS Paleobotan. loc. R6234, upper part of the New Egypt Formation and lower part of the Hornerstown Formation, Parkers Creek, 0.3 km east of Rt. 35, northwest of

Fig. 7. Dinoflagellates from northeastern Monmouth County, New Jersey. A, B, H, I. USGS Paleobotan. loc. R6234E in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 7. Dinoflagellates from northeastern Monmouth County, New Jersey. A, B, H, I. USGS Paleobotan. loc. R6234E, New Egypt Formation, approximately 1.5–2.0 m below the base of the Hornerstown Formation, Parkers Creek, 0.1 km east of Rt. 35, northwest of Eatontown. C, F, G. USGS Paleobotan.

Fig. 4 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 4. Comparison of stratigraphic sections at localities in northeastern Monmouth County, New Jersey. Numbers correspond to those in the list of localities.

Fig. 6. Dinoflagellates from USGS Paleobotan. loc. R6234H in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 6. Dinoflagellates from USGS Paleobotan. loc. R6234H, Tinton Formation, Hochhockson Brook, 0.2 km north of the intersection of Water Street and Tinton Avenue, northeastern Monmouth County, New Jersey. A–E. Isabelidinium cooksoniae (Alberti, 1959) Lentin & Williams, 1977 sensu lato.

Fig. 5 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 5. Composite stratigraphic section of the Tinton, New Egypt, and Hornerstown Formations near Eatontown, northeastern Monmouth County, showing the distribution of cephalopods and dinoflagellates (nonreworked) with respect to the standard zonation of foraminifera, nannofossils, and ammonites.

Fig. 3 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 3. Detailed locality map of northeastern Monmouth County, New Jersey, showing the areal extent of the New Egypt Formation (Kne) and its contact with the underlying Tinton formation (Kt) and overlying Hornerstown Formation (Tht). Numbers correspond to those in the list of localities.

Fig. 2 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey

Fig. 2. Standard stratigraphic sequence of part of the Upper Cretaceous and Lower Tertiary succession in Monmouth County, New Jersey (reproduced from Olsson, 1987). In earlier interpretations (Olsson, 1963), the New Egypt Formation was also considered to be equivalent to parts of the Hornerstown and Navesink formations.

Fig. 17 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 17 (previous page). Rioceratid and orthocerid cephalopods from the Olenidsletta Member, Floian, Ordovician, Profilstranda section, Ny Friesland, Spitsbergen. A-C. Eosomichelinoceras borealis sp. nov., from bed PO 123.3. A. Specimen FMNH-P30278, lateral view with ventral, prosiphuncular side toward left. B. Specimen FMNH-P30279, lateral view with ventral, prosiphuncular side toward left. C. Specimen FMNH-20288, holotype, ventral view. D–F, I. Hinlopoceras tempestatis gen. et sp. nov., from bed PO 07. D. Specimen FMNH-P30359, lateral view with ventral, prosiphuncular side toward right. E. Specimen FMNH-30479, adult(?) body chamber, ventral view, prosiphuncular side. F. Specimen FMNH-P30362, strongly annulated fragment of body chamber. G–H, J. Hinlopoceras venti gen. et sp. nov. G. Specimen FMNH-P30262, from bed PO 07, lateral view with ventral, prosiphuncular side toward left. H. Specimen FMNH-P30266, from bed PO 7.5, lateral view with ventral, prosiphuncular side toward right. I. Specimen FMNH-P30360; note the nearly smooth adapical part of the fragment. J. Specimen FMNH-P30267, from bed PO 7.5, lateral view with ventral, prosiphuncular side toward left. Scale bar = 10 mm for all figures.

Fig. 55 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 55. Model of cephalopod habitat and faunal composition for three intervals (trilobite biozones V1a, V1b-c, V2b) of the depositional time of the Olenidsletta Member, Floian, Ordovician at Profilstranda (PO) section, Ny Friesland, Spitsbergen. Absolute water depth is estimated from septal implosion depths of cephalopods during V2b, from presence of photic zone biomarker signatures in all Olenidsletta Member samples (Lee et al. 2019), and from a global amplitude of eustatic sea level change of ca 80 m during the Floian (Haq & Schutter 2008).

Fig. 53 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 53. Cephalopod occurrences in sampled intervals of the Olenidsletta Member, Floian, Ordovician, Profilstranda (PO) section, Ny Friesland, Spitsbergen. 0 from Fortey (1980), 1 from Lehnert et al. (2013), 2 from Cooper & Fortey (1982). Grey shaded time interval marks nileid trilobite assemblage after Fortey & Barnes 1977. Section from Kröger et al. (2017). Symbols for organism groups as in Fig. 3.

Fig. 52 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 52. Single most parsimonious tree resulting from constrained analysis with the "concave" interpretation plotted against stratigraphy. Stratigraphic units (in grey boxes) are Ordovician stage slices after Bergström et al. (2009), modified by Rasmussen et al. (2019). Vertical range of stage slices represents absolute age (after Rasmussen et al. 2019). Abbrevations: Tr = Tremadocian; Fl = Floian; Dp = Dapingian; Dw = Darriwilian.

Fig. 51 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 51. Single most parsimonious trees of four separate cladistic analyses to test different a priori interpretations and hypotheses. A–B. Shape of siphuncular segments of critical species interpreted as "tubular". C–D. Shape of siphuncular segments of critical species interpreted as "concave". B–D. Analyses with several topological constraints enforced under an assumption of the monophyly of the Endocerida, Oncocerida, and Orthocerida (see methods for details). Critical species are: Ethanoceras solitudines sp. nov., Olenidslettoceras farmi gen. et sp. nov., Svalbardoceras sterna gen. et sp. nov., and Valhalloceras floweri Evans & King, 1990. Grey boxes indicate established order level classification of species in the analysis. Values above branches are Bremer supports (if> 1), values below branches are bootstrap supports (absolute and GC frequencies).

Fig. 54 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 54. Rank abundance diagram of cephalopod rich horizons of the V1 (black circles) and V2 (white circles) trilobite biozone with ranks of the six most important species listed.

Fig. 46 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 46. Litoceras profilbekkenense sp. nov., FMNH-P30329, holotype, from bed PO 131, from the Olenidsletta Member, Floian, Ordovician, Profilstranda section, Ny Friesland, Spitsbergen. A. Lateral view of left side of fragment of body chamber. B. Ventral view and whorl cross section with siphuncular perforation preserved. C. Lateral view of right side. Scale bar = 10 mm for all figures.