Lebanese amber, Jezzine (SMNS collection) (Cretaceous of Lebanon)

Where: Lebanon (33.5° N, 35.6° E: paleocoordinates 9.2° N, 31.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Barremian (130.0 - 125.5 Ma)

• Amber found in three intervals in the upper part of the Grès du Liban. The upper interval is above the “Banc de Mrejatt,” the middle interval is between the “Banc de Mrejatt” and a pisolitic interval below, and the lower interval is below the pisolitic beds. The "Banc de Mrejatt" includes one biostratigraphically significant benthic foraminifer: Eopalorbitolina transiens (Cherchi and Schroeder, 1999), which is a zonal marker of the Lower to Upper Barremian transition according to Schroeder et al. (2010). Accordingly the “Banc de Mrejatt” is correlated to the transgression of sequence Ba3 of Clavel et al. (2007) and ascribed a late Early Barremian age. The pisolitic interval or “calcaires à pisolithes” of Heybroek (1942), consists of lacustrine shales and marls, locally with pisolites ranging in size from a hazel nut to an orange. Charophyte remains (thalli, utricles, and gyrogonites) are commonly found in this interval (Grambast and Lorch, 1968; Granier et al., 2015). According to Martín-Closas (2015, personal communication), the charophyte association should refer to the Cruciata-Paucibracteatus biozone of Martín-Closas et al. (2009) that spans the Late Barremian–Early Aptian interval. However, due to its topographic location, this interval is older than the “Banc de Mrejatt” and should be considered at least Early Barremian in age (Maksoud et al., 2017, 2022). The entomofaunal similarity of these three intervals could imply that the age of the amber should be the same, i.e., that of the older/lower interval. Amber pieces found in the middle and upper intervals are rounded and commonly bored by martesiine pholadid bivalves.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithified amber

Size classes: macrofossils, mesofossils

Preservation: soft parts, original chitin, amber

Collected by D. Schlee in 1968; reposited in the SMNS

• Specimens in Staatliches Museum fur Naturkunde, Stuttgart.

Primary reference: D. Schlee. 1970. Verwandtschaftsforschung an fossilen und rezenten Aleyrodina (Insecta; Hemiptera). Stuttgarter Beiträge zur Naturkunde 213:1-72 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124276: authorized by Matthew Clapham, entered by Matthew Clapham on 10.02.2012, edited by Amy Delelli and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Arachnida
 Araneae - Araneidae
Araneidae indet.11 Simon 1895 orb-weaving spider
SMNS C32/39
 Araneae - Oecobiidae
Lebanoecobius schleei n. gen. n. sp.10
Lebanoecobius schleei n. gen. n. sp.10 Wunderlich 2004 disc web spider
SMNS B-45
Insecta
 Reculida - Stygneidae
Heidea cretacica n. gen. n. sp., Bernaea neocomica n. gen. n. sp., Scaphothrips antennatus n. gen. n. sp.12, Neocomothrips hennigianus n. gen. n. sp.12, Rhetinothrips elegans n. gen. n. sp.12, Scudderothrips sucinus n. gen. n. sp.12, Progonothrips horridus n. gen. n. sp.12, Exitelothrips mesozoicus n. gen. n. sp.12, Jezzinothrips cretacicus n. gen. n. sp.12, Lebanoraphidia nana n. gen. n. sp.1
Heidea cretacica n. gen. n. sp. Schlee 1970 whitefly
Bernaea neocomica n. gen. n. sp. Schlee 1970 whitefly
Scaphothrips antennatus n. gen. n. sp.12 zur Strassen 1973 thrips
SMNS C31/17
Neocomothrips hennigianus n. gen. n. sp.12 zur Strassen 1973 thrips
SMNS C22/24//29
Rhetinothrips elegans n. gen. n. sp.12 zur Strassen 1973 thrips
SMNS C22/24//32
Scudderothrips sucinus n. gen. n. sp.12 zur Strassen 1973 thrips
SMNS C32/21
Progonothrips horridus n. gen. n. sp.12 zur Strassen 1973 thrips
SMNS C29/19
Exitelothrips mesozoicus n. gen. n. sp.12 zur Strassen 1973 thrips
SMNS C22/24//27
Jezzinothrips cretacicus n. gen. n. sp.12 zur Strassen 1973 long legged thrips
SMNS C17/1b
Lebanoraphidia nana n. gen. n. sp.1 Bechly and Wolf-Schwenninger 2011 snakefly
SMNS LB-235-2, SMNS LB-235-1
 Diptera - Psychodidae
Phlebotomites longifilis n. sp.6 Hennig 1972 sand fly
SMNS C49/2
Phlebotomites brevifilis n. gen. n. sp.6 Hennig 1972 sand fly
SMNS B8/1, B8/2, C29/2, C29/8
 Diptera -
"Cyclorrhapha indet." = Cyclorrhapha5
"Cyclorrhapha indet." = Cyclorrhapha5 Brauer 1863 fly
SMNS C 54/1
 Diptera - Asilidae
Microphorites extinctus n. gen. n. sp.5
Microphorites extinctus n. gen. n. sp.5 Hennig 1971 long-legged fly
SMNS 32/59
 Diptera - Atelestidae
Trichinites cretaceus n. gen. n. sp.4
Trichinites cretaceus n. gen. n. sp.4 Hennig 1970 fly
 Diptera - Corethrellidae
Corethrella (Fossicorethrella) cretacea n. sp.8 Szadziewski 1995 frog biting midge
SMNS C 61/12
 Diptera - Ceratopogonidae
Fossileptoconops lebanicus n. gen. n. sp.9, ? Austroconops sp.9, Austroconops sp.9, Austroconops gondwanicus n. sp.9, Austroconops fossilis n. sp.9, Minyohelea sp.2, "Lebanoconops lebanicus n. sp." = Minyohelea lebanica9, "Lebanoconops minutus n. sp." = Minyohelea minuta9, Minyohelea schleei n. sp.9, "Lebanoconops wirthi n. sp." = Minyohelea wirthi9, "Austroconops cretaceous n. sp." = Archiaustroconops cretaceous9, Archiaustroconops hamus2, Archiaustroconops ceratoformis n. gen. n. sp.9, Lebanoculicoides mesozoicus n. gen. n. sp.9, "Protoculicoides succineus n. sp." = Gerontodacus succineus9, Archiculicoides schleei n. gen. n. sp.9
Fossileptoconops lebanicus n. gen. n. sp.9 Szadziewski 1996 biting midge
SMNS C32/5
? Austroconops sp.9 Wirth and Lee 1958 biting midge
C32/17 Archiaustroconops szadziewskii
Austroconops sp.9 Wirth and Lee 1958 biting midge
SMNS C53/3, B4/3, B11/1, C2, C25, C31/42
Austroconops gondwanicus n. sp.9 Szadziewski 1996 biting midge
SMNS C31/18
Austroconops fossilis n. sp.9 Szadziewski 1996 biting midge
SMNS C31/34, C25, C2 (last two in Borkent, 2000)
Minyohelea sp.2 Borkent 1995 biting midge
SMNS C31/73, C17/10, C17/15, C22/24/34, B4/9
"Lebanoconops lebanicus n. sp." = Minyohelea lebanica9 Szadziewski 1996 biting midge
SMNS C31/2
"Lebanoconops minutus n. sp." = Minyohelea minuta9 Szadziewski 1996 biting midge
SMNS C32/67
Minyohelea schleei n. sp.9 Szadziewski 1996 biting midge
SMNS C32/74
"Lebanoconops wirthi n. sp." = Minyohelea wirthi9 Szadziewski 1996 biting midge
SMNS C25/13
"Austroconops cretaceous n. sp." = Archiaustroconops cretaceous9 Szadziewski 1996 biting midge
SMNS C31/18
Archiaustroconops hamus2 Borkent 2000 biting midge
SMNS C23, C10/25 (part Austroconops gondwanicus in Szadziewski, 1996)
Archiaustroconops ceratoformis n. gen. n. sp.9 Szadziewski 1996 biting midge
SMNS C2, C63/9, C20/9
Lebanoculicoides mesozoicus n. gen. n. sp.9 Szadziewski 1996 biting midge
SMNS C32/33
"Protoculicoides succineus n. sp." = Gerontodacus succineus9 Szadziewski 1996 biting midge
SMNS C31/14
Archiculicoides schleei n. gen. n. sp.9 Szadziewski 1996 biting midge
SMNS C39/1
 Diptera - Chironomidae
Libanochlites neocomicus n. gen. n. sp.3
Libanochlites neocomicus n. gen. n. sp.3 Brundin 1976 non biting midge
Aves
  -
Aves indet.7 Linnaeus 1758 bird
SMNS bird feathers