PBDB Collection

Ejerslev Molergrav, Mors, between layers +25 and +30 (Eocene of Denmark)

Where: Denmark (56.9° N, 8.9° E: paleocoordinates 52.4° N, 5.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Fur Formation, Ypresian (56.0 - 47.8 Ma)

• Fossils found between layers +25 & +30

•Earliest Early Eocene "An Early Eocene age of 54.04 ± 0.14 Ma has been determined for layer +19 and 54.52 ± 0.05 Ma for layer −17 by the Ar40–Ar39 method (Chambers et al. 2003).

Environment/lithology: offshore ramp; lithified diatomite and volcaniclastic

• The depositional environment was in the Palaeocene–Eocene precursor of the North Sea, which was an almost or entirely enclosed inland body, open to the Atlantic at least at times (Bonde 1997).

• "The Danish insects discussed here are from the marine Fur Formation, about 50-60 m of diatomite and tephra layers, which, with the Ølst Formation, constitute the Mo-clay in the northern Jutland region" Archibald & Makarkin, 2006

Size class: macrofossils

Preservation: adpression

Primary reference: S. Andersen. 2001. Silky lacewings (Neuroptera: Psychopsidae) from the Eocene-Paleocene transition of Denmark with a review of the fossil record and comments on phylogeny and zoogeography. Insect Systematics & Evolution 32:419-438 [M. Clapham/J. Karr/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113029: authorized by Matthew Clapham, entered by Jered Karr on 19.07.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Insecta
Odonata -	Furagrion jutlandicus² Furagrion jutlandicus² Henriksen 1922 damselfly MM-2085 (previously MHM-i1583AB), MM-11044
Odonata - Gomphaeschnidae	"Gomphaeschna paleocenica n. sp." = Plesigomphaeschnaoides paleocenica⁴ "Gomphaeschna paleocenica n. sp." = Plesigomphaeschnaoides paleocenica⁴ Madsen and Nel 1997 true dragonfly NR 2 coll. Madsen
Neuroptera - Ithonidae	Palaeopsychops latifasciatus, Palaeopsychops maculatus n. sp., Palaeopsychops quadratus n. sp.¹, Palaeopsychops angustifasciatus n. sp., Palaeopsychops abruptus Palaeopsychops latifasciatus Andersen 2001 moth lacewing MMSM 14M-3029 Palaeopsychops maculatus n. sp. Andersen 2001 moth lacewing Palaeopsychops quadratus n. sp.¹ Archibald and Makarkin 2006 moth lacewing GZG 001261/1ab Palaeopsychops angustifasciatus n. sp. Andersen 2001 moth lacewing GMUC 89 Palaeopsychops abruptus Andersen 2001 moth lacewing MMSM I.863
Neuroptera - Chrysopidae	Mesypochrysa nielseni n. sp.⁵ Mesypochrysa nielseni n. sp.⁵ Makarkin and Perkovsky 2023 green lacewing MGUH 34285 (Nielsen GM 2023.55)
Hymenoptera - Ichneumonidae	? Theronia nigriscutum n. sp.³ ? Theronia nigriscutum n. sp.³ Klopfstein 2022 ichneumon wasp MOL-MHM-5412

¹Archibald and Makarkin 2006; ²Archibald et al. 2023; ³Klopfstein 2022; ⁴Madsen and Nel 1997; ⁵Makarkin and Perkovsky 2023